Gemstones we love
Invest in a stone as unique as you are. Choose your birthstone month or simply a color
that speaks to you. Plus, learn how to care for your precious accessory.
that speaks to you. Plus, learn how to care for your precious accessory.
Abalone
Treatment: Abalone is dyed, coated, or bleached to improve and deepen color.
Care: Avoid chemicals and do not use an ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Shop Abalone Jewelry
Agate
Treatment: Agate is usually heated to improve appearance or deepen the color.
Care: Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Birthstone month: May
Shop Agate Jewelry
Alexandrite
Treatment: None known to enhance alexandrite.
Care: Clean with warm soapy water and a soft brush.
Birthstone month: June
Shop Alexandrite Jewelry
Amazonite
Treatment: Amazonite is permeated with a colorless wax, paraffin, or oil to improve appearance.
Care: Avoid chemicals and do not use an ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Shop Amazonite Jewelry
Amber
Treatment: Amber is sometimes heat-treated or dyed to deepen the color. It’s sometimes pressed/compressed with extreme pressure and heat to fuse together small pieces of natural amber.
Care: Avoid chemicals and do not use an ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Shop Amber Jewelry
Amethyst
Treatment: Almost all amethysts (purple, pink, and green) are heated to improve appearance or deepen the color.
Care: Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Birthstone month: February
Shop Amethyst Jewelry
Ametrine
Treatment: Ametrine is amethyst and citrine in a single crystal that’s heat treated.
Care: Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Shop Ametrine Jewelry
Apatite
Treatment: Apatite is heat-treated to improve color.
Care: Do not use an ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Shop Apatite Jewelry
Aquamarine
Treatment: Almost all aquamarine is heated to improve its appearance.
Care: Do not use an ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Birthstone month: March
Shop Aquamarine Jewelry
Aquaprase
Treatment: Aquaprase is a blue-green color that doesn’t require any treatment.
Care: Clean with warm soapy water and a soft cloth.
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Austrian crystal
Treatment: Austrian crystals are imitation pearls—a crystal sphere that is coated with a mother-of-pearl-like substance.
Care: Clean with warm soapy water and a soft cloth.
Shop Austrian Crystal Jewelry
Carbon fiber
Treatment: Carbon fiber is a man-made material with no gem properties.
Care: Clean with warm soapy water and a soft cloth.
Shop Carbon Fiber Jewelry
Chalcedony
Treatment: Chalcedony is always dyed.
Care: Avoid exposure to extreme light and heat as stones may fade. Clean with warm soapy water and a soft brush or cloth.
Shop Chalcedony Jewelry
Chrome diopside
Treatment: There are none known for chrome diopside.
Care: Do not use an ultrasonic cleaner or steamer. Avoid household chemicals. Clean with warm soapy water and a soft brush or cloth.
Shop Chrome Diopside Jewelry
Citrine
Treatment: Citrine is usually heat treated or irradiated to improve the color.
Care: Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Birthstone month: November
Shop Citrine Jewelry
Coral
Treatment: Coral is usually dyed or bleached to enhance the color. It’s sometimes stabilized with colorless plastic to increase durability and to improve appearance. It’s also sometimes stabilized and compressed under extreme pressure and heat to bind together small pieces of natural material into a larger whole.
Care: Avoid household chemicals, steam, and ultrasonic cleaning.
Shop Coral Jewelry
Cubic zirconia
Treatment: Cubic zirconia is synthetic and sometimes coated with a product that makes the stone more durable.
Care: Clean with warm soapy water and a soft cloth.
Shop Cubic Zirconia Jewelry
Cultured pearl
Treatment: Cultured pearls are usually bleached, dyed, irradiated, and/or coated to enhance the color.
Care: Perfume can erode the outer layers of pearls. Clean with warm soapy water and a soft brush or cloth.
Birthstone month: June
Shop Cultured Pearl Jewelry
Diamond
Treatment: A small percentage of diamonds are treated to improve color and clarity.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: April
Shop Diamond Jewelry
Macy’s Star Signature Diamond™
Treatment: A diamond of exceptional fire & brilliance, the Macy’s Star Signature Diamond™ was developed in partnership with the International Institute of Diamond Grading and Research (IIDGR), part of the De Beers Group of Companies. It needs no treatment.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: April
Shop Macy’s Star Signature Diamond Jewelry
Black diamonds
Treatment: There are two different processes that create black diamonds—heat treatment and irradiation. Heat treatment exposes the diamond to high temperatures, which creates graphite residue in the crystal. Irradiation modifies the crystal structure of the stone.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: April
Shop Black Diamond Jewelry
Blue diamonds
Treatment: Blue diamonds are created by irradiating colorless diamonds to change the color and then heat-treating them to stabilize the color.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: April
Shop Blue Diamond Jewelry
Brown diamonds
Treatment: Brown diamonds are occasionally irradiated to enhance color.
Care: Clean with warm soapy water and a soft cloth.
Birthstone month: April
Shop Brown Diamond Jewelry
Yellow, red, green & pink diamonds
Treatment: Colored diamonds are created by irradiation or High Pressure High Temperature (HPHT) treatment.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: April
Shop Colored Diamond Jewelry
Druzy
Treatment: Druzy is often dyed to enhance its beauty and overall appearance. Some varieties are coated with titanium, which creates iridescent finishes.
Care: Avoid strong detergents and extreme heat. Clean with warm soapy water and a soft cloth.
Shop Druzy Jewelry
Emerald
Treatment: An emerald is usually penetrated with oil, wax, or resin to improve its appearance and is often dyed with color agents.
Care: Do not use an ultrasonic cleaner or steamer. Avoid sudden temperature changes, steaming, and contact with cosmetics, hair spray, perfume, and household chemicals. Clean with a damp cloth or soft brush.
Birthstone month: May
Shop Emerald Jewelry
Fire opal
Treatment: Fire opal is usually dyed and stained.
Care: Avoid water, heat, and solvents as fire opals are moderately soft and can scratch.
Birthstone month: October
Shop Fire Opal Jewelry
Garnet
Treatment: A small percentage of garnet is treated to improve color and clarity.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: January
Shop Garnet Jewelry
Green quartz
Treatment: Green quartz is heat-treated to improve appearance or deepen the color.
Care: Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Shop Green Quartz Jewelry
Hematite
Treatment: Hematite is not usually treated.
Care: Clean with warm soapy water and a soft brush or cloth.
Shop Hematite Jewelry
Iolite
Treatment: Iolite is not usually treated.
Care: Clean with warm soapy water and a soft brush or cloth.
Shop Iolite Jewelry
Jade
Treatment: Jade is usually dyed or heated to enhance its color. It’s also permeated with paraffin wax to hide surface cracks.
Care: Wipe clean with a soft cloth after wearing, and wipe it down with a gem cleaner every so often. Do not use any chemical cleaners, ultrasonic cleaners, or steamers. Remove jewelry before swimming, as chlorine in pools and hot tubs can be harmful to jade.
Shop Jade Jewelry
Jasper
Treatment: Jasper is occasionally dyed to enhance color.
Care: Clean with warm soapy water and a soft brush or cloth.
Shop Jasper Jewelry
Kunzite
Treatment: Kunzite is usually heated and irradiated to enhance color.
Care: Natural and/or enhanced material may fade. Avoid strong light and ultrasonic cleaners or steamers. Clean with a damp cloth or soft brush.
Shop Kunzite Jewelry
Lab-created gemstones
Treatment: Lab-created gemstones are grown in a laboratory but identical chemically, physically, and optically to natural gems. They rely on a steady, controlled process of applying minerals, heat, and pressure, and usually have fewer inclusions.
Care: Avoid strong detergents, heat, pressure, ultrasonic cleaning, repolishing, or recutting the stone. Color may fade in light or with heat. Clean with warm soapy water and a soft brush or cloth.
Shop Lab-Created Gemstone Jewelry
Lab-grown diamonds
Treatment: One of two processes is used: High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD). Growth occurs when a “diamond seed” (a sliver of diamond) is present, and carbon atoms deposit and grow into a larger rough diamond.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: April
Shop Lab-Grown Diamond Jewelry
Labradorite
Treatment: Labradorite is usually irradiated to enhance color.
Care: Normal gentle handling, avoid heat.
Shop Labradorite Jewelry
Lapis lazuli
Treatment: Lapis lazuli is usually permeated with colorless wax and often dyed to enhance the color.
Care: Do not use an ultrasonic cleaner or steamer. Avoid contact with cosmetics, hair spray, perfume, and household chemicals. Clean with a damp cloth or soft brush.
Shop Lapis Lazuli Jewelry
Larimar
Treatment: Larimar is generally untreated.
Care: It is photosensitive and will fade if exposed to too much heat or light. Avoid steam and ultrasonic cleaning.
Shop Larimar Jewelry
Malachite
Treatment: Malachite is occasionally infused with wax or epoxy to enhance durability and appearance.
Care: Avoid chemicals, steam, and ultrasonic cleaning.
Shop Malachite Jewelry
Marcasite
Treatment: Marcasite is not usually treated.
Care: Avoid chemicals, steam, and ultrasonic cleaning.
Shop Marcasite Jewelry
Morganite
Treatment: Morganite is commonly heat treated to enhance the color.
Care: Clean with warm soapy water and a soft brush or cloth.
Shop Morganite Jewelry
Charles & Colvard Lab-Created Moissanite®
Treatment: Moissanite is not a diamond or a simulated diamond. Charles & Colvard Created Moissanite® is a unique gem with its own set of chemical and optical properties—created through a thermal growth process that creates lab-grown silicon carbide crystals.
Care: Clean with warm soapy water and a soft brush or cloth. Can be placed in an ultrasonic cleaner and dried with a steamer.
Shop Moissanite Jewelry
Mother of pearl
Treatment: Mother of pearl is usually bleached, dyed, irradiated, and/or coated to enhance color.
Care: Clean with warm soapy water and a soft brush or cloth.
Shop Mother-of-Pearl Jewelry
Mystic topaz
Treatment: The surface of mystic topaz is coated to enhance color.
Care: Avoid abrasive and harsh chemicals.
Birthstone month: November
Shop Mystic Topaz Jewelry
Nano blue sapphire
Treatment: Nano blue sapphire is a composite material of silica, glass, and crystals that are combined at high heat to create a “gem.”
Care: Clean with warm soapy water and a soft brush or cloth. No ultrasonic cleaner or steamer.
Shop Nano Blue Sapphire Jewelry
Onyx
Treatment: Onyx is dyed to enhance color.
Care: Clean with warm soapy water and a soft brush or cloth.
Shop Onyx Jewelry
Opal
Treatment: Opal is occasionally treated with sugar or smoke to enhance the color. Sometimes it’s infused with wax, oil, or plastic to enhance appearance and durability.
Care: Do not use an ultrasonic cleaner or steamer. Avoid heat and contact with cosmetics, hair spray, perfume, and household chemicals. Clean with a damp cloth or soft brush.
Birthstone month: October
Shop Opal Jewelry
Peridot
Treatment: Peridot is sometimes infused with oil, wax resins, and/or a colorless hardened substance to enhance its appearance.
Care: Do not use an ultrasonic cleaner or steamer. Avoid sudden temperature changes and contact with harsh chemicals.
Birthstone month: August
Shop Peridot Jewelry
Prasiolite
Treatment: Prasiolite is usually heat-treated to enhance color.
Care: Do not use an ultrasonic cleaner or steamer. Avoid heat and contact with cosmetics, hair spray, perfume, and household chemicals. Clean with a damp cloth or soft brush.
Shop Prasiolite Jewelry
Quartz
Treatment: Quartz (all colors) is heat-treated to improve its appearance or deepen the color.
Care: Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Shop Quartz Jewelry
Resin
Treatment: Resin is plastic or enhanced with plastic material.
Care: Avoid abrasives, harsh chemicals, steam, and ultrasonic cleaning. Clean with warm soapy water and a soft brush or cloth.
Shop Resin Jewelry
Rhodolite garnet
Treatment: Rhodolite garnet is not usually treated.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: January and June
Shop Rhodolite Garnet Jewelry
Rose quartz
Treatment: Rose quartz is heated to improve the appearance and deepen or lighten the color.
Care: Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Shop Rose Quartz Jewelry
Ruby
Treatment: Ruby is usually heated to improve appearance and sometimes diffused to enhance color.
Care: Clean with warm soapy water and a soft brush or cloth. Ultrasonic and steam cleaners are usually safe for untreated or heat-treated stones.
Birthstone month: July
Shop Ruby Jewelry
Sapphire
Treatment: Sapphire is usually heated to improve appearance and is occasionally irradiated. It’s commonly diffused along with heat application to create different colors—yellow is always diffused.
Care: Avoid strong detergents, heat, pressure, ultrasonic cleaners, steamers, repolishing, or recutting the stone. Color may fade in light or with heat. Clean with warm soapy water and a soft brush or cloth.
Birthstone month: September
Shop Sapphire Jewelry
Manufactured diffused sapphire
Treatment: Powdered sapphire is heated to recrystallize. Color is induced by lattice diffusion of titanium from an external source. It’s always heated to improve appearance.
Care: Avoid strong detergents, heat, pressure, ultrasonic cleaners, repolishing, or recutting the stone. Color may fade in light or with heat. Clean with warm soapy water and a soft brush or cloth.
Birthstone month: September
Shop Manufactured Diffused Sapphire Jewelry
Smoky quartz
Treatment: Smoky quartz is heated to improve the appearance and to deepen or lighten the color.
Care: Color fades when exposed to heat. Clean with warm soapy water and a soft brush or cloth.
Birthstone month: November
Shop Smoky Quartz Jewelry
Spinel
Treatment: Black and gray spinel is rarely treated.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: August
Shop Spinel Jewelry
Synthetic spinel
Treatment: Synthetic spinel is man-made.
Care: Clean with warm soapy water and a soft cloth.
Birthstone month: August
Shop Synthetic Spinel Jewelry
Tanzanite
Treatment: Tanzanite is usually heated to improve its appearance.
Care: Do not use an ultrasonic cleaner or steamer. Avoid sudden temperature changes. Clean with a damp cloth or soft brush.
Shop Tanzanite Jewelry
Tiger’s Eye
Treatment: Tiger’s Eye is usually heat treated, dyed, or bleached to enhance color.
Care: Avoid harsh chemicals and sudden temperature changes. Clean with a damp cloth or soft brush.
Birthstone month: August
Shop Tiger’s Eye Jewelry
Topaz
Treatment: Topaz (all colors) is usually irradiated and heated to produce color. Some topaz may be coated with a thin film of minerals applied through heat.
Care: Clean with warm soapy water and a soft brush or cloth.
Birthstone month: December
Shop Topaz Jewelry
Tourmaline
Treatment: Tourmaline is commonly heated and/or irradiated to improve appearance.
Care: Do not use an ultrasonic cleaner or steamer. Avoid sudden temperature changes and contact with cosmetics, hair spray, perfume, and household chemicals. Clean with a soft brush or cloth.
Birthstone month: October
Shop Tourmaline Jewelry
Tsavorite garnet
Treatment: Tsavorite garnet is usually untreated.
Care: Clean with warm soapy water and a soft cloth.
Birthstone month: January
Shop Tsavorite Garnet Jewelry
Manufactured turquoise
Treatment: Manufactured turquoise is usually stabilized with plastic to enhance its durability and dyed to enhance its color.
Care: Do not use an ultrasonic cleaner or steamer. Avoid contact with cosmetics, hair spray, perfume, and chemicals. Clean with a damp cloth or soft brush.
Birthstone month: December
Shop Manufactured Turquoise Jewelry
Reconstituted turquoise
Treatment: Reconstituted turquoise is powdered turquoise compressed with a binding agent under extreme pressure and heated to bind together small pieces of natural material, then dyed.
Care: Do not use an ultrasonic cleaner or steamer. Avoid contact with cosmetics, hair spray, perfume, and household chemicals. Clean with a damp cloth or soft brush.
Birthstone month: December
Shop Reconstituted Turquoise Jewelry
Stabilized turquoise
Treatment: Porous turquoise is immersed in a glue compound, which is absorbed into the stone to give it strength and stability.
Care: Do not use an ultrasonic cleaner or steamer. Avoid contact with cosmetics, hair spray, perfume, and household chemicals. Clean with a damp cloth or soft brush.
Birthstone month: December
Shop Stabilized Turquoise Jewelry
Zircon
Treatment: Zircon is usually heat-treated to create its blue color.
Care: Avoid abrasives, exposure to excessive light, and rough handling. Clean with warm soapy water and a soft cloth.
Birthstone month: December
Shop Zircon Jewelry
Want even more?
Try chrysoberyl or diaspore color change. Both are generally not treated and can be cleaned with warm soapy water and a soft cloth.
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