Carats and Gemstone Grading
Carats are the units used to measure gem weight and one of the main factors in gem grading. Learn what affects the price per carat of various gem species.…
Carats are the units used to measure gem weight and one of the main factors in gem grading. Learn what affects the price per carat of various gem species.…
A beautiful, sparkling tourmaline with a color much like a big Merelani mint garnet..
The GL SpectroLite is an inexpensive and easy-to-use tool that can help gemologists conduct spectroscope exams. Read our review to learn more.…
Bench jewelers work very hard with little or no acknowledgement, creating and repairing treasured possessions. These stories pay tribute to…
The epidote mineral supergroup contains many related species of interest to collectors. However, epidote itself is the one most likely to be faceted…
Phenomenal gems seem to do magical things with light. Learn the science behind optical effects like cat’s eyes and star stones and how to judge…
Gem species are mineral species prized for their durability and beauty. Learn how chemical formulas and crystal structures define species and…
Named after the color of sea water, aquamarine is the blue to blue-green member of the beryl family. Readily available and moderately priced, the…
Aquamarines can look great, but what’s the best way to mount them? Novice jewelers should learn the pros and cons of various aquamarine setting…