PRIMA GEMSTONE TREATMENT & CARE GUIDE


GEMSTONETREATMENT METHODSPECIAL CARE & ADVICE
Abalone
abalone
Dyed, coated or bleached to improve and deepen color.Avoid chemicals and do not use ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Abalone Doublet
abalone doublet
The lower, larger portion of a doublet is made from quartz; the thinner upper layer is abalone.Do not use ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Agate
agate
Usually heated to improve appearance or deepen color.Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Alexandrite
alexandrite
NoneClean with warm soapy water and a soft brush.
Amazonite
amazonite
Permeated with a colorless wax, paraffin or oil to improve appearance.Avoid chemicals and do not use ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Amazonite Doublet
amazonite doublet
The lower, larger portion of a doublet is made from quartz; the thinner upper layer is amazonite.Do not use ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Amber
amber
Sometimes heat treated or dyed to deepen color. Sometimes pressed/compressed with extreme pressure and heat to fuse together small pieces of natural amber.Avoid chemicals and do not use ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Amethyst
amethyst
Almost all are heated to improve appearance or deepen color.Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Aquamarine
aquamarine
Almost all are heated to improve appearance.Do not use ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Austrian Crystal Imitation Pearl
Austrian crystal imitation pearl
Imitation pearls. A crystal sphere that is coated with a mother of pearl like substance.Clean with warm soapy water and a soft cloth.
Chrome Diopside
chrome diopside
NoneDo not use ultrasonic cleaner or steamer. Avoid household chemicals. Clean with warm soapy water and a soft brush or cloth.
Citrine
citrine
Usually heat treated or irradiated to improve color.Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Coral
coral
Usually dyed or bleached to enhance color. Sometimes stabilized with colorless plastic to increase durability and to improve appearance. Sometimes stabilized and compressed under extreme pressure and heat to bind together small pieces of natural material into a larger whole.Avoid household chemicals, steam and ultrasonic cleaning.
Cubic Zirconia
cubic zirconia
Synthetic. Some are coated with a product that makes the stone more durable.Clean with warm soapy water and a soft cloth.
Cultured Pearl
cultured pearl
Usually bleached and polished to achieve uniform color and shape. May be dyed or irradiated to produce various colors.Do not use ultrasonic cleaner or steamer. Avoid contact with cosmetics, hair spray, perfume and household chemicals. Clean with a soft cloth.
Diamond
diamond
NoneClean with warm soapy water and a soft brush or cloth.
Black Diamond
black diamond
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.Clean with warm soapy water and a soft brush or cloth.
Blue Diamond
blue diamond
Blue diamonds are created by irradiating colorless diamonds to change the color, and then heat-treating them to stabilize the color.Clean with warm soapy water and a soft brush or cloth.
Brown Diamond
brown diamond
Occasionally, irradiated to enhance color.Clean with warm soapy water and a soft cloth.
Druzy
druzy
Often dyed to enhance its beauty and overall appearance. Some varieties are coated with titanium, which creates iridescent finishes.Avoid strong detergents and extreme heat. Clean with warm soapy water and a soft cloth.
Emerald
emerald
Usually penetrated with oil, wax or resin to improve appearance. Often dyed with color agents.Do not use 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.
Garnet
garnet
NoneClean with warm soapy water and a soft brush or cloth.
Green Quartz
green quartz
Heat treated to improve appearance or deepen color.Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Hematite
hermatite
NoneClean with warm soapy water and a soft brush or cloth.
Jade
jade
Usually dyed or heated to enhance the color. Permeated with paraffin wax to hide surface cracks.Wipe your jade jewelry with a soft cloth after wearing, and wipe it down with a gem cleaner every so often. Do not use any chemical cleaners. Do not use ultrasonic cleaner or steamer. Remove jewelry before swimming. The chlorine in pools and hot tubs can be harmful to jade.
Jasper
jasper
Occasionally dyed to enhance color.Clean with warm soapy water and a soft brush or cloth.
Jet
jet
NoneAvoid steam and ultrasonic cleaning.
Kunzite
kunzite
Usually heated and irradiated to enhance color.Natural and/or enhanced material may fade. Avoid strong light and ultrasonic cleaners and steamers. Clean with a damp cloth or soft brush.
Lapis Lazuli
lapis lazuli
Usually permeated with colorless wax. Often dyed to enhance the color.Do not use ultrasonic cleaner or steamer. Avoid contact with cosmetics, hair spray, perfume and household chemicals. Clean with a damp cloth or soft brush.
Malachite
malachite
Occasionally infused with wax or epoxy to enhance durability and appearance.Avoid chemicals, steam and ultrasonic cleaning.
Marcasite
marcasite
NoneAvoid chemicals, steam and ultrasonic cleaning.
Morganite
morganite
Commonly heat treated to enhance color.Clean with warm soapy water and a soft brush or cloth.
Mother of Pearl
mother of pearl
Usually bleached, dyed irradiated and/or coated to enhance color.Clean with warm soapy water and a soft brush or cloth.
Mystic Topaz
mystic topaz
Surface enhanced with a coating to enhance color.Avoid abrasive and harsh chemicals.
Onyx
(Black Chalcedony)
onyx
Always dyedAvoid exposure to extreme light and heat as stones may fade. Clean with warm soapy water and a soft brush or cloth.
Opal
opal
Occasionally sugar or smoke treated to enhance the color. Sometimes infused with wax, oil or plastic to enhance appearance and durability.Do not use ultrasonic cleaner or steamer. Avoid heat and contact with cosmetics, hair spray, perfume and household chemicals. Clean with a damp cloth or soft brush.
Opal Triplet
opal triplet
Often dyed or coated to improve and deepen color. Three layers make up the triplet: a black glass/onyx back, a slice of opal in the middle and a quartz cap.Do not use ultrasonic cleaner or steamer. Avoid heat and contact with cosmetics, hair spray, perfume and household chemicals. Clean with a damp cloth or soft brush.
Peridot
peridot
Sometimes infused with oil, wax resins and/or colorless hardened substance to enhance appearance.Do not use ultrasonic cleaner or steamer. Avoid sudden temperature changes and contact with harsh chemicals.
Quartz
quartz
Usually dyed and/or heat treated to produce different colors. Sometimes surface enhanced with a coating to enhance color.Avoid abrasives, harsh chemicals, steam, and ultrasonic cleaning. Clean with warm soapy water and a soft brush or cloth.
Rose Quartz
rose quartz
Heated to improve appearance and deepen or lighten color.Do not expose to intense heat. Clean with warm soapy water and a soft brush or cloth.
Rose Quartz /
Pink Mother of Pearl
rose quartz/pink mother of pearl
In this doublet, the lower, larger portion is made from quartz, and the thinner upper layer is Mother of Pearl.Avoid chemicals and do not use ultrasonic cleaner or steamer. Clean with warm soapy water and a soft brush or cloth.
Rhodolite Garnet
rhodolite garnet
NoneClean with warm soapy water and a soft brush or cloth.
Lead Glass
Filled Ruby
lead glass filled ruby
Almost all rubies are lead-glass filled. Surface cavities and fractures are filled with glass and glass-like substances that contain lead. Also, rubies usually have been heated to improve appearance and some may be diffused to enhance color.Avoid strong detergents, heat, pressure and ultrasonic cleaner or steamer. Avoid re-polishing or re-cutting of the stone. Color may fade in light or with heat. Clean with warm soapy water and a soft brush or cloth.
Sapphire
sapphire
Usually heated to improve appearance. Occasionally irradiated. Commonly diffused along with heat application to create different colors. Yellow sapphire is always diffused.Avoid strong detergents, heat, pressure and ultrasonic cleaner or steamer. Avoid re-polishing or re-cutting of the stone. Color may fade in light or with heat. Clean with warm soapy water and a soft brush or cloth.
Manufactured
Diffused Sapphire
manufactured diffused sapphire
Powdered sapphire heated to recrystallize. Color induced by lattice diffusion of titanium from an external source. Always heated to improve appearance.Avoid strong detergents, heat, pressure and ultrasonic cleaner or steamer. Avoid re-polishing or re-cutting of the stone. Color may fade in light or with heat. Clean with warm soapy water and a soft brush or cloth.
Smoky Quartz
smoky quartz
Heated to improve appearance and to deepen or lighten color.Color fades when exposed to heat. Clean with warm soapy water and a soft brush or cloth.
Spinel
spinel
NoneClean with warm soapy water and a soft brush or cloth.
Synthetic Spinel
synthetic spinel
NoneClean with warm soapy water and a soft cloth.
Tanzanite
tanzanite
Usually heated to improve appearance.Do not use ultrasonic cleaner or steamer. Avoid sudden temperature changes. Clean with a damp cloth or soft brush.
Tigers Eye
tigers eye
Usually heat treated, dyed or bleached to enhance color.Avoid harsh chemicals and sudden temperature changes. Clean with a damp cloth or soft brush.
Topaz (All colors)
topaz
Usually irradiated and heated to produce color. Some topaz may be coated with a thin film of minerals applied through heat.Clean with warm soapy water and a soft brush or cloth.
Tourmaline
(Green, Blue
Pink, Red & Purple)
tourmaline
Commonly heated and/or irradiated to improve appearance.Do not use ultrasonic cleaner or steamer. Avoid sudden temperature changes, steaming and contact with cosmetics, hair spray, perfume and household chemicals. Clean with a soft brush or cloth.
Manufactured Turquoise
manufactured turquoise
Usually stabilized with plastic to enhance durability. Dyed to enhance color.Do not use ultrasonic cleaner or steamer. Avoid contact with cosmetics, hair spray, perfume and household chemicals. Clean with a damp cloth or soft brush.
Reconstituted Turquoise
reconstituted turquoise
Powdered turquoise compressed with a binding agent under extreme pressure and heated to bind together small pieces of natural material into a larger whole. Dyed to enhance color.Do not use ultrasonic cleaner or steamer. Avoid contact with cosmetics, hair spray, perfume and household chemicals. Clean with a damp cloth or soft brush.
Tsavorite Garnet
tsavorite garnet
NoneClean with warm soapy water and a soft cloth.
Zircon
zircon
Usually heat treated to create blue color.Avoid abrasives, exposure to excessive light and rough handling. Clean with warm soapy water and a soft cloth.