Fine Tsavorite and Spinel

Exceptional stones are recirculated and new production is showcased at the AGTA show in Tucson.

阅读更多

Exceptional Red Spinels and Fine Aquamarine

阅读更多

Large and Unusual Gems

阅读更多

High-End Colored Gems

阅读更多

Ginger Garnet, “Fancy” Tanzanite

阅读更多

Gem Artistry in Smaller Sizes (英语)

Unique carvings in gems are displayed at GJX in Tucson.

阅读更多

Diamond in Diamond

A Fancy black round brilliant diamond has an inclusion that is revealed to be a natural diamond crystal.

阅读更多

Large Natural Quahog Pearl

A purple non-nacreous specimen is revealed to be a natural northern quahog pearl.

阅读更多

Gemstones and Jewelry Inspired By Nature

At AGTA, exquisite jewelry pieces inspired by natural scenes were on view.

阅读更多

Bold Color Combinations

Color and size make a statement at this booth in Tucson.

阅读更多

Color-Change Garnets from Tanzania

Striking Tanzanian garnets showing color shifting at the Riverpark Inn (Pueblo) show in Tucson.

阅读更多

Tucson 2015 Overview

A summary of the findings at Tucson’s 2015 gem shows.

阅读更多

Wonders Within Gemstones II (英语)

Review of Wonders within Gemstones II, by Anthony de Goutiere.

阅读更多

Oregon Sunstone Update

阅读更多

上一页第 2 页,共 2 页下一页

您或许还会喜欢

YMAL GIA Ed
了解校园课程和在线教育
Learn About NextGem
GIA NextGem™ 钻石零售 培训
Explore GIA Laboratory Promotional Offers
探索 GIA 鉴定所的促销优惠
Shop the GIA Store
访问 GIA 商店