A World of Crystals
We live in a world of crystals. Learn what they are and where you can find them, from deep underground to the dust in the air and even inside our bodies.…
Danburite Value, Price, and Jewelry Information
A very durable gemstone, danburite is an excellent choice for jewelry use. Although the mineral isn’t rare, large facetable pieces are scarce.…
The World’s Largest Fancy Vivid Blue Diamond Expected to Auction for $48 Million
March 9, 2022 Photo by Sotheby’s A 15.1-carat fancy blue vivid diamond will hit Sotheby’s Hong Kong auction block in April with a starting price…
Gem Formation: How are Gemstones Created?
Gem formation usually involves mineral crystallization and other geological processes. Learn how these affect the gemstone properties gemologists…
Gemstone Optical Properties
Learn how gemstone optical properties, like refractive index and pleochroism, help gemologists identify gems and lapidaries choose cuts.
Parisite Value, Price, and Jewelry Information
More well-known as rare inclusions in emeralds, parisite crystals are usually small and seldom faceted.
Spinel Buying Guide
Master spinel buying with our comprehensive guide covering the 4 Cs, color grading, pricing, origins, and how to identify quality natural vs synthetic…
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