明升体育app_明升体育-官网 Reports to Go Digital by 2025
New Digital Diamond Dossier
First to Launch in 2023
New Gems & Gemology Issue
German Topaz, Emerald from Habachtal Part II, and 2022 Tucson ReportREAD MORE
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Gemology & Jewelry Design
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Research & News
Blue Zircon Reportedly from Malawi
A reported new source of blue zircon in Malawi yields rough material for beautiful finished stones in the gem trade.
明升体育app_明升体育-官网 Knowledge Sessions
Engage in webinars on the most diverse and pressing issues in gemology today, including gemstone origin, laboratory-grown stones and new discoveries in field gemology.
Chondrodite in Red Spinel from Mogok, Myanmar
The Bangkok lab recently encountered a single round crystal of chondrodite in red spinel, a possible indicator of Burmese origin.
Two Antique Mughal Spectacles with Gemstone Lenses
Unique diamond and emerald-lensed spectacles from the Mughal Empire were tested in 明升体育app_明升体育-官网’s New York laboratory.
明升体育app_明升体育-官网ed Stones from the Deep
The first installment of this column discusses the formation of colored stones from the crust-mantle transition and below.
Radioactive Green Diamond
The Carlsbad lab recently encountered a 2.42 ct green diamond showing signs of radiation treatment by the use of radioactive salts.