Afghan Emerald, Tajik Ruby, and Clarity-Enhanced Tourmaline
Large and Unusual Gems
A Large Baroque Tridacna Gigas (Giant Clam) Pearl
Ruby in Diamond
A Chart for the Separation of Natural and Synthetic Diamonds
Texas Topaz, Slovak Opal, a Beryl Inclusions Chart, and More
37th International Gemmological Conference
A report from the 37th IGC, held in late October 2023 in Tokyo.
Fall 2023 Auction Highlights
Large blue and pink diamonds were among the top lots of the fall auction season, including the most expensive auction jewel of 2023.
G&G Contributors Awarded for Best Geoscience Research
In Memoriam: Heitor Barbosa
A Unique Omphacite Jade Pendant
More on Virtu Gem’s Ethical Supply Chain Practices
An update on Virtu Gem’s mission to improve artisanal mining and gem trading practices in Kenya, Malawi, and Zambia.
Suspended Crystal in Red Spinel
Exceptional Red Spinels and Fine Aquamarine
Fine Corundum, Demantoid Garnet
Yellow Mn-rich Tourmaline from the Canary Mining Area, Zambia
Ginger Garnet, “Fancy” Tanzanite
High-End Colored Gems
Carbon Dioxide in a Brown Diamond
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