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B0087S4JPE Availability: Currently unavailable Score: 1000.000 Category: Clothing Rating: 4 Votes: 2 Find similar products Judith Jack Color Pop Sterling Silver, Marcasite Disc Drop Pendant Necklace. Classic and timeless with an elegant pop of color, this pendant necklace by Judith Jack boasts an heirloom-worthy style. Trimmed with CZ accents, the giftable quality of these earrings is perfect for any age. As the premier marcasite brand, Judith Jack provides unique, fine quality pieces for aficionados and collectors. Launched over 35 years ago, its founders had a passion for antique and estate jewelry. Today, the brand continues to honor its legacy while also offering modern selections. Judith Jack’s signature pieces features grade-A marcasite, a highly faceted, silver metallic stone that sparkles with a diamond like glow. Collections mix elements of contemporary and vintage styling, as well as infusions of semi-precious color, to offer truly unique designs.	B002FL52WI Availability: Currently unavailable Score: 10.753 Category: Clothing Rating: 5 Votes: 2 Find similar products Amazon Collection Sterling Silver Green Druzy and Apatite Pendant Necklace. Sparkling seaside colors inspire this sterling silver gemstone pendant. It highlights a round of glittering green druzy, encased in sterling silver. Above, a faceted pear of aqua blue apatite accents the bail. Add a chain of your choice to make this enticing pendant complete. The Amazon Curated Collection Discover the Amazon Curated Collection of fine and fashion jewelry. The expansive selection of high-quality jewelry featured in the Amazon Curated Collection offers everyday values that range from precious gemstone and diamond pieces to the latest fashion designs. This hand-selected assortment features an array of diamond, gemstone, and precious metal designs that receive a quality inspection, including from Amazon’s staff graduate gemologist, to ensure they meet Amazon’s high standards. All diamonds featured in the Amazon Curated Collection are certified by our suppliers to be conflict free, and IGI, GIA, or AGS certifications are provided on white diamonds of .75 carats or larger on all stud earrings, rings, and pendant necklaces. Pieces from the Amazon Curated Collection come packaged in a custom box, making them wonderful gifts. In addition, we offer free one-day shipping within the continental U.S. on items over $500. International shipping options for friends and family overseas are available for an additional fee. The Amazon Curated Collection offers a specialized customer service team that is available seven days a week to answer any product questions before, during or after the purchase. If you’re not satisfied for any reason, you will receive a full refund and free return shipping within the U.S. if you return your purchase within 30 days. Find a special gift for a loved one or a beautiful piece that complements your personal style with jewelry from the Amazon Curated Collection. Sajen Sajen is an exclusive jewelry line created and designed by Marianna and Richard Jacobs and produced in collaboration with highly skilled Balinese silversmiths and jewelers. Contemporary designs have a strong Balinese artisan influence, and are characterized by ornate flourishes and the innovative use of semi-precious stones. Gemstones Color Jewelers describe the color of a gemstone in terms of three characteristics: hue, saturation, and tone. A gemstone's basic color is its hue, and those with purer hues (for emeralds, green; for sapphires, blue; and for rubies, red) are generally considered more valuable. Often, however, a hint of another color can be detected. Saturation is a measure of the intensity or purity of a gem's hue and is determined by the degree to which gray or brown hues mute its defining color. Value tends to increase with saturation, so a fully saturated purplish blue sapphire may well be more expensive than a muted pure blue one. The tone of a gemstone, a measurement of its lightness or darkness, is usually given as light, medium-light, medium, medium-dark, or dark. Clarity A flawless gemstone is rare and expensive. As with diamonds, most gemstones have inclusions, or tiny mineral flaws, that can be seen under magnification or by the careful eye. Make sure that any inclusions in the stone do not penetrate deeply into the gem, as this may cause it to break or crack. Clarity grades range from VVS (very, very slightly included) to I3, in which inclusions are prominent and severely affect the gemstone's beauty. Cut A gemstone's cut refers to its proportions and symmetry. In making a gemstone look appealing--the stone should be symmetrical in all dimensions so that it will appear balanced, and that its facets will reflect light evenly. Color should also be taken into account when cutting for optical efficiency. If a stone's color is highly saturated, a shallow cut will allow it to pass more light, while a deeper cut may increase the vividness of a less saturated gem. There is no generally accepted grading system for gemstone cut. Size Though a gemstone's weight is usually given in carats, this may not give an accurate idea of its size, because different types of stone have different densities. Therefore, a one-carat sapphire or ruby will be smaller than a one-carat emerald, though they have the same weight, because sapphires and rubies (both a form of the mineral corundum) are more dense than emeralds. Gemstones can also be measured in dimensions (diameter, length, and width). It is important to know the dimensions to ensure that the gemstone weight will be visible and well-proportioned in the setting. Gemstone Treatment Gemstones are often treated to enhance color and fill cracks. Please note: if a gemstone has been treated, this information will be provided in the specifications on the stone's product detail page. There are various accepted techniques, depending on the type of stone: Oils and resins are frequently used to fill surface-reaching fissures in emeralds and rubies. This process is not permanent; however, if a treated ruby or emerald is subjected to high heat, the filler may leak out of the stone. Sapphires and rubies are often heated in a kiln or furnace to enhance their color. Such heat treatment, which is considered permanent, has been used for centuries. Lightly colored sapphires may also undergo diffusion treatment. This is done by heating a stone in the presence of coloring elements such as titanium or iron, which causes a thin layer of color to be diffused into the stone's surface. Because this color layer is so thin, a diffusion-treated sapphire should not be re-polished. Gemstone Care To clean gemstone jewelry, first wipe it with a soft cloth to remove any dirt. Emeralds require only the use of a soft cloth, as cleaners may damage these soft gems. Sapphires and rubies can be cleaned with either an ultrasonic cleaner or a solution of one part ammonia to six parts water, with a soft brush. Store your gemstone jewelry in a soft cloth pouch or jewelry case so it does not touch other pieces in your collection. As with all jewelry, normal wear and tear can loosen prongs and settings, so it is a good idea to have it checked by a professional jeweler who can make repairs as needed.
B007EIWCNO Availability: Currently unavailable Score: 10.417 Category: Clothing Rating: 4 Votes: 93 Find similar products Amazon Collection Sterling Silver with Swarovski Elements Crystal Teardrop Pendant Necklace. Tiny crystal accents in graduated purple hues add fashionable detailing to this fluid pendant design. Wrapped in swirling sterling silver, its polished finish yet colorful presence allows it to be dressed up or down. The Amazon Curated Collection Discover the Amazon Curated Collection of fine and fashion jewelry. The expansive selection of high-quality jewelry featured in the Amazon Curated Collection offers everyday values that range from precious gemstone and diamond pieces to the latest fashion designs. This hand-selected assortment features an array of diamond, gemstone, and precious metal designs that receive a quality inspection, including from Amazon’s staff graduate gemologist, to ensure they meet Amazon’s high standards. All diamonds featured in the Amazon Curated Collection are certified by our suppliers to be conflict free, and IGI, GIA, or AGS certifications are provided on white diamonds of .75 carats or larger on all stud earrings, rings, and pendant necklaces. Pieces from the Amazon Curated Collection come packaged in a custom box, making them wonderful gifts. In addition, we offer free one-day shipping within the continental U.S. on items over $500. International shipping options for friends and family overseas are available for an additional fee. The Amazon Curated Collection offers a specialized customer service team that is available seven days a week to answer any product questions before, during or after the purchase. If you’re not satisfied for any reason, you will receive a full refund and free return shipping within the U.S. if you return your purchase within 30 days. Find a special gift for a loved one or a beautiful piece that complements your personal style with jewelry from the Amazon Curated Collection. Fun, flirty, fashionable, and fabulous, Carnevale jewelry brings a refreshing burst of light to any occasion. Made with the best crystal product on the market today set in shimmering sterling silver, each Carnevale piece delivers signature Swarovski sparkle and unbeatable quality – at prices that deserve their own celebration. Whatever your style, whatever your mood, there’s a glittering Carnevale gem to lighten up your look. From passionate purples to midnight blues, perfect pinks to ravishing reds – Carnevale jewelry comes in a carnival of color options. Or for a classic twist, sparkle in a pretty pearl piece with a simple shock of black and white shine. Choose a colorful cocktail ring to light up your little black dress or a glittering pair of hoops for an elegant office look. A blingy butterfly when you’re feeling dreamy – or a basic bangle for a splash of down-to-earth sparkle. Design choices are endless. And at prices very affordable to all, Carnevale jewelry makes the perfect personalized gift option to light up birthdays, graduations, Mother’s Day – or just because. So turn your tried-and-true style into a technicolor treasure with Carnevale Jewelry. Lighten up and look great! Caring for your Carnevale Jewelry To keep Carnevale jewelry shining bright for years to come, make sure to give it special care. Rub your jewelry with baby wipes: they perform miracles on crystal jewelry without damaging the surface. Then rub with a clean dry soft cotton cloth to bring back the shine. The best way to store your Carnevale jewelry is inside a soft cloth pocket or fabric swath. Never stack it to avoid it from rubbing against other jewelry in your collection and try not to drop it on a hard surface. Swarovski Elements Swarovski was founded in 1895 in Austria by Daniel Swarovski. He’s aptitude for invention and entrepreneurship formed the company that today employs more than 20,000 and has a presence in more than 120 countries. Daniel came up with a new invention and patented an automatic grinding machine that was to revolutionize the crystal industry and provide the basis for the family’s company long-lasting success. The combination of fine crystal and precision cutting made the Swarovski name famous. SWAROVSKI ELEMENTS is the world’s leading brand for the finest crystal components manufactured by Swarovski. The science of the cut and the celebration of crystal as high art come together in SWAROVSKI ELEMENTS. Highest precision, quality and clarity of crystal that ensure perfect application and durable designs. SWAROVSKI ELEMENTS add infinite brilliance to everything they embellish.	B0028N6R22 Availability: Currently unavailable Score: 10.309 Category: Clothing Rating: 4 Votes: 1 Find similar products Amazon Collection Sterling Silver Marcasite Bird and Epoxy Flower Pendant Necklace, 18. The Amazon Curated Collection Discover the Amazon Curated Collection of fine and fashion jewelry. The expansive selection of high-quality jewelry featured in the Amazon Curated Collection offers everyday values that range from precious gemstone and diamond pieces to the latest fashion designs. This hand-selected assortment features an array of diamond, gemstone, and precious metal designs that receive a quality inspection, including from Amazon’s staff graduate gemologist, to ensure they meet Amazon’s high standards. All diamonds featured in the Amazon Curated Collection are certified by our suppliers to be conflict free, and IGI, GIA, or AGS certifications are provided on white diamonds of .75 carats or larger on all stud earrings, rings, and pendant necklaces. Pieces from the Amazon Curated Collection come packaged in a custom box, making them wonderful gifts. In addition, we offer free one-day shipping within the continental U.S. on items over $500. International shipping options for friends and family overseas are available for an additional fee. The Amazon Curated Collection offers a specialized customer service team that is available seven days a week to answer any product questions before, during or after the purchase. If you’re not satisfied for any reason, you will receive a full refund and free return shipping within the U.S. if you return your purchase within 30 days. Find a special gift for a loved one or a beautiful piece that complements your personal style with jewelry from the Amazon Curated Collection.
B06Y1MMVST Availability: Currently unavailable Score: 10.204 Category: Clothing Rating: 5 Votes: 1 Find similar products Judith Jack Sterling Silver and Green Frontal with Swarovski Marcasite Necklace, 16 + 2 Extender. .	B002FL51HY Availability: Currently unavailable Score: 10.000 Category: Clothing Rating: 3.5 Votes: 2 Find similar products Amazon Collection Sterling Silver Multi-Berry Colored Swarovski Elements Geometric Frontal Necklace with Rolo Chain, 18. Add a blush of color to your neckline with this sparkling Swarovski Elements necklace. Faceted trapezoid beads in mixed berry hues are arranged in an elegant fan shape and strung on an 18-inch sterling silver rolo link chain. This colorful necklace will brighten just about any outfit. The Amazon Curated Collection Discover the Amazon Curated Collection of fine and fashion jewelry. The expansive selection of high-quality jewelry featured in the Amazon Curated Collection offers everyday values that range from precious gemstone and diamond pieces to the latest fashion designs. This hand-selected assortment features an array of diamond, gemstone, and precious metal designs that receive a quality inspection, including from Amazon’s staff graduate gemologist, to ensure they meet Amazon’s high standards. All diamonds featured in the Amazon Curated Collection are certified by our suppliers to be conflict free, and IGI, GIA, or AGS certifications are provided on white diamonds of .75 carats or larger on all stud earrings, rings, and pendant necklaces. Pieces from the Amazon Curated Collection come packaged in a custom box, making them wonderful gifts. In addition, we offer free one-day shipping within the continental U.S. on items over $500. International shipping options for friends and family overseas are available for an additional fee. The Amazon Curated Collection offers a specialized customer service team that is available seven days a week to answer any product questions before, during or after the purchase. If you’re not satisfied for any reason, you will receive a full refund and free return shipping within the U.S. if you return your purchase within 30 days. Find a special gift for a loved one or a beautiful piece that complements your personal style with jewelry from the Amazon Curated Collection. Swarovski Elements Swarovski was founded in 1895 in Austria by Daniel Swarovski. He’s aptitude for invention and entrepreneurship formed the company that today employs more than 20,000 and has a presence in more than 120 countries. Daniel came up with a new invention and patented an automatic grinding machine that was to revolutionize the crystal industry and provide the basis for the family’s company long-lasting success. The combination of fine crystal and precision cutting made the Swarovski name famous. SWAROVSKI ELEMENTS is the world’s leading brand for the finest crystal components manufactured by Swarovski. The science of the cut and the celebration of crystal as high art come together in SWAROVSKI ELEMENTS. Highest precision, quality and clarity of crystal that ensure perfect application and durable designs. SWAROVSKI ELEMENTS add infinite brilliance to everything they embellish.
B005F6CFDY Availability: Currently unavailable Score: 10.000 Category: Clothing Rating: 5 Votes: 3 Find similar products Amazon Collection Sterling Silver, Dyed Green Jade Teardrop Pendant Necklace , 18. The Amazon Curated Collection Discover the Amazon Curated Collection of fine and fashion jewelry. The expansive selection of high-quality jewelry featured in the Amazon Curated Collection offers everyday values that range from precious gemstone and diamond pieces to the latest fashion designs. This hand-selected assortment features an array of diamond, gemstone, and precious metal designs that receive a quality inspection, including from Amazon’s staff graduate gemologist, to ensure they meet Amazon’s high standards. All diamonds featured in the Amazon Curated Collection are certified by our suppliers to be conflict free, and IGI, GIA, or AGS certifications are provided on white diamonds of .75 carats or larger on all stud earrings, rings, and pendant necklaces. Pieces from the Amazon Curated Collection come packaged in a custom box, making them wonderful gifts. In addition, we offer free one-day shipping within the continental U.S. on items over $500. International shipping options for friends and family overseas are available for an additional fee. The Amazon Curated Collection offers a specialized customer service team that is available seven days a week to answer any product questions before, during or after the purchase. If you’re not satisfied for any reason, you will receive a full refund and free return shipping within the U.S. if you return your purchase within 30 days. Find a special gift for a loved one or a beautiful piece that complements your personal style with jewelry from the Amazon Curated Collection.	B003BNZMTW Availability: Currently unavailable Score: 9.901 Category: Clothing Rating: 5 Votes: 1 Find similar products Amazon Collection Sterling Silver 7mm Square Smoky Quartz and Diamond-Accent Pendant Necklace , 18. Experience the dazzling contrast of shadowy, smoky quartz and radiant diamond with the Sterling Silver Square Smoky Quartz and Diamond-Accent Pendant. This pendant showcases a brilliant square-cut smoky quartz gemstone held by 925 sterling silver prongs. Crowning the gemstone is a sparkling diamond that is suspended from a sterling silver, triangular-shaped clip. Complete with a silver cable chain with a spring-ring clasp, this necklace hangs 18 inches, perfectly accentuating evening dresses with plunging necklines. The Amazon Curated Collection Discover the Amazon Curated Collection of fine and fashion jewelry. The expansive selection of high-quality jewelry featured in the Amazon Curated Collection offers everyday values that range from precious gemstone and diamond pieces to the latest fashion designs. This hand-selected assortment features an array of diamond, gemstone, and precious metal designs that receive a quality inspection, including from Amazon’s staff graduate gemologist, to ensure they meet Amazon’s high standards. All diamonds featured in the Amazon Curated Collection are certified by our suppliers to be conflict free, and IGI, GIA, or AGS certifications are provided on white diamonds of .75 carats or larger on all stud earrings, rings, and pendant necklaces. Pieces from the Amazon Curated Collection come packaged in a custom box, making them wonderful gifts. In addition, we offer free one-day shipping within the continental U.S. on items over $500. International shipping options for friends and family overseas are available for an additional fee. The Amazon Curated Collection offers a specialized customer service team that is available seven days a week to answer any product questions before, during or after the purchase. If you’re not satisfied for any reason, you will receive a full refund and free return shipping within the U.S. if you return your purchase within 30 days. Find a special gift for a loved one or a beautiful piece that complements your personal style with jewelry from the Amazon Curated Collection. Gemstones Color Jewelers describe the color of a gemstone in terms of three characteristics: hue, saturation, and tone. A gemstone's basic color is its hue, and those with purer hues (for emeralds, green; for sapphires, blue; and for rubies, red) are generally considered more valuable. Often, however, a hint of another color can be detected. Saturation is a measure of the intensity or purity of a gem's hue and is determined by the degree to which gray or brown hues mute its defining color. Value tends to increase with saturation, so a fully saturated purplish blue sapphire may well be more expensive than a muted pure blue one. The tone of a gemstone, a measurement of its lightness or darkness, is usually given as light, medium-light, medium, medium-dark, or dark. Clarity A flawless gemstone is rare and expensive. As with diamonds, most gemstones have inclusions, or tiny mineral flaws, that can be seen under magnification or by the careful eye. Make sure that any inclusions in the stone do not penetrate deeply into the gem, as this may cause it to break or crack. Clarity grades range from VVS (very, very slightly included) to I3, in which inclusions are prominent and severely affect the gemstone's beauty. Cut A gemstone's cut refers to its proportions and symmetry. In making a gemstone look appealing--the stone should be symmetrical in all dimensions so that it will appear balanced, and that its facets will reflect light evenly. Color should also be taken into account when cutting for optical efficiency. If a stone's color is highly saturated, a shallow cut will allow it to pass more light, while a deeper cut may increase the vividness of a less saturated gem. There is no generally accepted grading system for gemstone cut. Size Though a gemstone's weight is usually given in carats, this may not give an accurate idea of its size, because different types of stone have different densities. Therefore, a one-carat sapphire or ruby will be smaller than a one-carat emerald, though they have the same weight, because sapphires and rubies (both a form of the mineral corundum) are more dense than emeralds. Gemstones can also be measured in dimensions (diameter, length, and width). It is important to know the dimensions to ensure that the gemstone weight will be visible and well-proportioned in the setting. Gemstone Treatment Gemstones are often treated to enhance color and fill cracks. Please note: if a gemstone has been treated, this information will be provided in the specifications on the stone's product detail page. There are various accepted techniques, depending on the type of stone: Oils and resins are frequently used to fill surface-reaching fissures in emeralds and rubies. This process is not permanent; however, if a treated ruby or emerald is subjected to high heat, the filler may leak out of the stone. Sapphires and rubies are often heated in a kiln or furnace to enhance their color. Such heat treatment, which is considered permanent, has been used for centuries. Lightly colored sapphires may also undergo diffusion treatment. This is done by heating a stone in the presence of coloring elements such as titanium or iron, which causes a thin layer of color to be diffused into the stone's surface. Because this color layer is so thin, a diffusion-treated sapphire should not be re-polished. Gemstone Care To clean gemstone jewelry, first wipe it with a soft cloth to remove any dirt. Emeralds require only the use of a soft cloth, as cleaners may damage these soft gems. Sapphires and rubies can be cleaned with either an ultrasonic cleaner or a solution of one part ammonia to six parts water, with a soft brush. Store your gemstone jewelry in a soft cloth pouch or jewelry case so it does not touch other pieces in your collection. As with all jewelry, normal wear and tear can loosen prongs and settings, so it is a good idea to have it checked by a professional jeweler who can make repairs as needed.
B004OL43CC Availability: Currently unavailable Score: 9.709 Category: Clothing Rating: 3.4 Votes: 42 Find similar products Amazon Collection Sterling Silver and Cushion Gemstone Solitaire Pendant, 18. For anyone who loves the cool grey of a cloudy day, the Sterling Silver Cushion Smokey Quartz Solitaire Pendant is a lovely choice. The stone is almost 1/3 inch in diameter, for a minimum 2.25 karats of semiprecious gem weight. It's simply clasped in a classic four-prong sterling silver setting and linked to a sterling silver 18-inch rolo chain that fastens with a spring-ring clasp. So simple and versatile, this timeless pendant is ideal for running errands on the weekend, taking a meeting at the office, or dressing up for an evening out. Pair it with matching earrings for a coordinated look. The Amazon Curated Collection Discover the Amazon Curated Collection of fine and fashion jewelry. The expansive selection of high-quality jewelry featured in the Amazon Curated Collection offers everyday values that range from precious gemstone and diamond pieces to the latest fashion designs. This hand-selected assortment features an array of diamond, gemstone, and precious metal designs that receive a quality inspection, including from Amazon’s staff graduate gemologist, to ensure they meet Amazon’s high standards. All diamonds featured in the Amazon Curated Collection are certified by our suppliers to be conflict free, and IGI, GIA, or AGS certifications are provided on white diamonds of .75 carats or larger on all stud earrings, rings, and pendant necklaces. Pieces from the Amazon Curated Collection come packaged in a custom box, making them wonderful gifts. In addition, we offer free one-day shipping within the continental U.S. on items over $500. International shipping options for friends and family overseas are available for an additional fee. The Amazon Curated Collection offers a specialized customer service team that is available seven days a week to answer any product questions before, during or after the purchase. If you’re not satisfied for any reason, you will receive a full refund and free return shipping within the U.S. if you return your purchase within 30 days. Find a special gift for a loved one or a beautiful piece that complements your personal style with jewelry from the Amazon Curated Collection.	B002SQJWHQ Availability: Currently unavailable Score: 9.346 Category: Clothing Rating: 2.5 Votes: 2 Find similar products Amazon Collection Tagliamonte - 14k Rose Gold Purple Venetian Cameo with Amethyst and Tourmaline Pendant Necklace , 18''. Indulge in a classically romantic look with this handcrafted Italian cameo pendant by Tagliamonte. At the center is a rose cameo in purple Venetian glass, set in a rope-textured frame of 14 karat rose gold. Purple amethyst, pink tourmaline, and Venetian glass ornaments surround the cameo, and a purple amethyst briolette hangs below. This magnificent pendant is showcased on an 18-inch chain. The Amazon Curated Collection Discover the Amazon Curated Collection of fine and fashion jewelry. The expansive selection of high-quality jewelry featured in the Amazon Curated Collection offers everyday values that range from precious gemstone and diamond pieces to the latest fashion designs. This hand-selected assortment features an array of diamond, gemstone, and precious metal designs that receive a quality inspection, including from Amazon’s staff graduate gemologist, to ensure they meet Amazon’s high standards. All diamonds featured in the Amazon Curated Collection are certified by our suppliers to be conflict free, and IGI, GIA, or AGS certifications are provided on white diamonds of .75 carats or larger on all stud earrings, rings, and pendant necklaces. Pieces from the Amazon Curated Collection come packaged in a custom box, making them wonderful gifts. In addition, we offer free one-day shipping within the continental U.S. on items over $500. International shipping options for friends and family overseas are available for an additional fee. The Amazon Curated Collection offers a specialized customer service team that is available seven days a week to answer any product questions before, during or after the purchase. If you’re not satisfied for any reason, you will receive a full refund and free return shipping within the U.S. if you return your purchase within 30 days. Find a special gift for a loved one or a beautiful piece that complements your personal style with jewelry from the Amazon Curated Collection. Founded by the Tagliamonte family in 1943, the Tagliamonte jewelry line has been creating high-quality and timeless designs for over 60 years. Currently developed in Vicenza, Italy, otherwise known as the gold city, the Tagliamonte Vicenza goldsmith company has been run by three family generations. Signature to the Tagliamonte line is the intricate use of Venetian Cameos. The magical world of Venetian Cameos, otherwise known as glass pastels, was a part of the Ancient Roman refined jewelry tradition. The Tagliamonte family rediscovered this mysterious material in 1987 and has since then been producing exquisite and eye-catching designs. Containing a wide color palate, the glass pastels are used to create tiny engravings that exert scenes from when the tradition of Venetian Cameos first began. Gemstones Color Jewelers describe the color of a gemstone in terms of three characteristics: hue, saturation, and tone. A gemstone's basic color is its hue, and those with purer hues (for emeralds, green; for sapphires, blue; and for rubies, red) are generally considered more valuable. Often, however, a hint of another color can be detected. Saturation is a measure of the intensity or purity of a gem's hue and is determined by the degree to which gray or brown hues mute its defining color. Value tends to increase with saturation, so a fully saturated purplish blue sapphire may well be more expensive than a muted pure blue one. The tone of a gemstone, a measurement of its lightness or darkness, is usually given as light, medium-light, medium, medium-dark, or dark. Clarity A flawless gemstone is rare and expensive. As with diamonds, most gemstones have inclusions, or tiny mineral flaws, that can be seen under magnification or by the careful eye. Make sure that any inclusions in the stone do not penetrate deeply into the gem, as this may cause it to break or crack. Clarity grades range from VVS (very, very slightly included) to I3, in which inclusions are prominent and severely affect the gemstone's beauty. Cut A gemstone's cut refers to its proportions and symmetry. In making a gemstone look appealing--the stone should be symmetrical in all dimensions so that it will appear balanced, and that its facets will reflect light evenly. Color should also be taken into account when cutting for optical efficiency. If a stone's color is highly saturated, a shallow cut will allow it to pass more light, while a deeper cut may increase the vividness of a less saturated gem. There is no generally accepted grading system for gemstone cut. Size Though a gemstone's weight is usually given in carats, this may not give an accurate idea of its size, because different types of stone have different densities. Therefore, a one-carat sapphire or ruby will be smaller than a one-carat emerald, though they have the same weight, because sapphires and rubies (both a form of the mineral corundum) are more dense than emeralds. Gemstones can also be measured in dimensions (diameter, length, and width). It is important to know the dimensions to ensure that the gemstone weight will be visible and well-proportioned in the setting. Gemstone Treatment Gemstones are often treated to enhance color and fill cracks. Please note: if a gemstone has been treated, this information will be provided in the specifications on the stone's product detail page. There are various accepted techniques, depending on the type of stone: Oils and resins are frequently used to fill surface-reaching fissures in emeralds and rubies. This process is not permanent; however, if a treated ruby or emerald is subjected to high heat, the filler may leak out of the stone. Sapphires and rubies are often heated in a kiln or furnace to enhance their color. Such heat treatment, which is considered permanent, has been used for centuries. Lightly colored sapphires may also undergo diffusion treatment. This is done by heating a stone in the presence of coloring elements such as titanium or iron, which causes a thin layer of color to be diffused into the stone's surface. Because this color layer is so thin, a diffusion-treated sapphire should not be re-polished. Gemstone Care To clean gemstone jewelry, first wipe it with a soft cloth to remove any dirt. Emeralds require only the use of a soft cloth, as cleaners may damage these soft gems. Sapphires and rubies can be cleaned with either an ultrasonic cleaner or a solution of one part ammonia to six parts water, with a soft brush. Store your gemstone jewelry in a soft cloth pouch or jewelry case so it does not touch other pieces in your collection. As with all jewelry, normal wear and tear can loosen prongs and settings, so it is a good idea to have it checked by a professional jeweler who can make repairs as needed.