拍卖行：主要钻石和有色宝石的强大市场影响 (英语)
A report on how high-profile jewelry auctions have affected the gem and jewelry market.
Enriching a Tradition
Infrared Spectroscopic Study of Filled Moonstone
A study on how infrared spectroscopy provides conclusive evidence of impregnated moonstone.
提交至孟买鉴定所的三颗 CVD 合成钻石 (英语)
The gemological and spectroscopic characteristics of these type IIa synthetic diamonds suggested that they experienced different growth and/or treatment histories.
巨大的 CVD 制造合成钻石 (英语)
The New York laboratory recently tested a 2.16 ct CVD synthetic from Scio Diamond Technology Corp., the largest specimen GIA has seen so far.
含聚合氮杂质的 CVD 合成钻石 (英语)
Recently, an unusual 0.94 ct Fancy yellow-brown emerald cut was submitted to GIA for a synthetic diamond grading report. It contained a cloud of black needle-like inclusions occurring along a plane and showed weak green transmission with fiber-optic illumination.
未告知的大颗 CVD 合成钻石样品 (英语)
In mid-2012, one of the international diamond grading laboratories in Antwerp reported undisclosed CVD synthetic diamonds, causing a stir in the diamond industry.
Rare Double-Trapiche Emerald
At the AGTA show, Equatorian Imports showed this contributor two pieces of emerald with a very rare double-trapiche pattern
Musgravite from Myanmar
Two small, near-colorless stones reportedly from Myanmar were loaned to GIA for examination.
Dumortierite-Quartz Rock Presented as Sapphire
The Gem Testing Laboratory of Jaipur, India, received for identification an opaque blue specimen, submitted as sapphire.
Green Diamond, Treated with Radioactive Salt
The stone owes all of its green color to these shallow radiation stains.
A Comparison of Modern and Fossil Ivories Using Multiple Techniques
This article provides identification criteria to distinguish between modern and fossil (mammoth) elephant ivory.
Gemological Characteristics of Saltwater Cultured Pearls Produced After Xenotransplantation
.jpg "YMAL GIA Ed")
