Cleaning Fine Gemstones
Gemstone	Cleaning application	Comments
Amber	damp cloth and dry or warm water-detergent can also be used	Amber is an organic gem, a fossilized, hardened form of resin from ancient pine trees.
Amethyst	warm water-detergent, soft brush	Amethyst is sometimes heat treated to bring out its purple color. Can possibly crack or fade in too high of temperatures.
Aquamarine	warm water-detergent and soft brush	Aquamarine (blue-beryl) can be heat treated to bring out its blue color. Too high heat can cause fading of this stone.
Diamond	ammonia based cleaner, warm water (grease cutting) detergent-soft brush	Diamonds are restored to brilliamce when oils or grease are removed from their surface. Heat is not a problem.
Emerald	warm water-detergent and soft brush	Emeralds are treated with an oil to help with breakage and color. Ultra Sonic and Steaming Cleaners are to be completely avoided.
Garnet	warm water-detergent and soft brush	Garnets are heat sensitive but for the most part are tough stones.
Jade	warm water-detergent and soft brush, dry-rub briskly	Jade is a tough surface. May need professional repolishing from time to time.
Opal	warm water-detergent and soft brush	Opal is very sensitive to pressure and extreme temperature changes. Very soft and fragile and can have surface cracks if exposed to harsh elements.
Pearl	wipe with damp soft cloth, stains should be removed with mild soapy solution and a damp cloth (do not dip pearl in solution) dry thoroughly. Blow out drilled holes carefully; moisture captured there causes disoloring	very special care is required
Peridot	warm water-detergent and soft brush	Peridot is a softer gem, acids and heat can cause dammage. Easily scratches avoid wearing with other jewelry.
Ruby	warm water-detergent and soft brush	Rubies are sometimes oiled and high heat can remove this oil and cause dammage.
Sapphire	warm water-detergent and soft brush	Sapphires can be oiled like the Ruby, which enhances it's color. Inclusions can weaken this stone and harsh chemicals are to be avoided.
Tanzanite	warm water-detergent and soft brush	Tanzanite is fragile and soft. It is heat treated to bring out the blue and can be sensitive to heat and vibrations.
Turquoise	warm water-detergent and soft brush, wipe dry immediately	Turquoise is porous, harsh detergents and cleaning solutions can cause this stone to change color completely.
Topaz	warm water-detergent and soft brush	Topaz is very senstive to vibration and heat. Ultra Sonic and Steam Cleaners must be avoided.
Tourmaline	warm water-detergent and soft brush	Tourmaline is a fairly hard gem. Due to the color changes in the stone itself these areas tend to be weaker. Can be sensitive to heat and vibrations.