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.

阅读更多

Chondrodite in Red Spinel from Mogok, Myanmar

阅读更多

Low-Temperature Heating of Mogok Ruby, Copper-Diffused Feldspar, Porcelain-Treated Turquoise, and the Work of Gem Artist Chi Huynh

阅读更多

Liberian Ruby

A trip to a rural Liberian diamond mining community results in a newly discovered source of corundum.

阅读更多

Luminescent Synthetic Garnet-Like Crystals

阅读更多

New Tourmaline Pockets in San Diego County’s Pala District

阅读更多

New Find of Petroleum-Included Quartz from Madagascar

阅读更多

Exceptionally Rare Pearls from ECIJA

阅读更多

Sixth Annual Gianmaria Buccellati Foundation Award Winner

A graduate of GIA’s Jewelry Design program in London is the recipient of the 2022 Gianmaria Buccellati Foundation Award.

阅读更多

Sweet Home Mine Rhodochrosite from 1888

A rhodochrosite on display at AGTA dates back more than a century to Colorado’s Alma Mining District.

阅读更多

YNY Jewels: Designer Surbhi Pandya

Handcrafted jewelry pieces featuring tanzanite carvings stood out at the GJX show.

阅读更多

Identification of Natural, Reconstructed, and Imitation Root Amber

阅读更多

A “Cobalt Blue” Gahnospinel

阅读更多

Four-Rayed Star Chrysoberyl

阅读更多

Large Faceted Pallasitic Peridot

阅读更多

Two Black Non-Nacreous Bead Cultured Pearls from Pinctada margaritifera

阅读更多

Aegirine in Poudretteite

阅读更多

Topaz Crystals in Red Beryl

阅读更多

Unusual Glass-and-Quartz Triplet Imitation of Emerald

阅读更多

A Zircon with Strong Photochromic Effect

阅读更多

上一页第 51 页,共 146 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