General Questions:
1-800-421-7250
From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.
Read More
Natural gemstones are typically far more valuable than synthetic ones, so being able to identify them correctly is a powerful skill.
Read MoreThis article, from the Spring 1991 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
Read MorePhysical, chemical, spectroscopic and microscopic characteristics of a sample of hydrothermally grown synthetic aquamarine from the USSR are presented.
Read More
