Fine Corundum, Demantoid Garnet
Fine Tsavorite and Spinel
Exceptional stones are recirculated and new production is showcased at the AGTA show in Tucson.
Amethyst From Morocco:An Update
GIA’s Bangkok lab investigates the gemological properties of Moroccan amethyst.
Cultured Pearl Market Update
An up-close look at the cultured pearl’s role in the gem and jewelry industry.
Tsavorite Garnet and Mahenge Red Spinel
A discussion of the current demand for tsavorite and spinel in today’s market.
Gemstones and Jewelry Inspired By Nature
At AGTA, exquisite jewelry pieces inspired by natural scenes were on view.
Diamond in Diamond
A Fancy black round brilliant diamond has an inclusion that is revealed to be a natural diamond crystal.
Large Natural Quahog Pearl
A purple non-nacreous specimen is revealed to be a natural northern quahog pearl.
Color-Change Garnets from Tanzania
Striking Tanzanian garnets showing color shifting at the Riverpark Inn (Pueblo) show in Tucson.
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