Find out more about what causes a diamond to chip, and 8 tips on how you can avoid chipping your diamond.
Read MoreThe Coscuez mine, one of a number in Colombia, is rapidly gaining significance as a major source of fine emeralds.
Read MoreThe properties and techniques of flux-grown synthetic emeralds from Russia are discussed.
Read MoreFrom the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.
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