The following chart will assist you in caring for your gems. Your independent jeweler is your best source of advice about the proper care of your gems and jewelry.

GemstoneFragile GemRemounting CareHeat Sensitive Avoid Acids Avoid Pressure Do Not Boil Do Not Steam No Ultrasonic
Agate X
Alexandrite X
Amber X X X X X X X
Amethyst X
Ametrine X
Anadalusite X
Apatite X X X
Aquamarine X X
Beryl X X
Chalcedony X
GemstoneFragile GemRemounting CareHeat Sensitive Avoid Acids Avoid Pressure Do Not Boil Do Not Steam No Ultrasonic
Citrine X
Coral X X X X
Diamond X
Diopside X X X
Drusy Quartz X
Emerald X X X X X X X X
Feldspar (moonstone & sunstone) X X X X X
Garnets X X X
Hematite X X
Jadeite X X
GemstoneFragile GemRemounting CareHeat Sensitive Avoid Acids Avoid Pressure Do Not Boil Do Not Steam No Ultrasonic
Kunzite X X X X X
Lapis Lazuli X X X X
lolite X
Malachite X X X X X
Nephrite Jade X X
Opal X X X X X X
Pearls X X X X X
Peridot X X X X X X X
Quartz X
Ruby
GemstoneFragile GemRemounting CareHeat Sensitive Avoid Acids Avoid Pressure Do Not Boil Do Not Steam No Ultrasonic
Sapphire X
Shell Cameo X X X X X X
Spinel X
Sugilite X X X
Tanzanite X X X X X X X X
Topaz X X X X X X
Tourmaline X
Turquoise X X X X X
Zircon X X X X X X
Note: Durability of many gemstones, whether listed here or not, is proportionate to the level of inclusions.


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Crews Jewelers
8203 W. 20th Street, Suite B
Greeley, CO 80634
(970) 352-8544 Fax: (970) 351-0867
Toll Free 1 877-352-8544

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