Unusual Purple Fluid in Quartz

Numerous negative crystals in a pear-shaped quartz host brightly colored purple liquid.

阅读更多

Breyite Inclusion in Diamond

A breyite inclusion suggests the sublithospheric origin of a diamond examined in GIA’s New York laboratory.

阅读更多

Large Orange Rutile Inclusion in a “Chameleon” Diamond

A partially enclosed orange rutile crystal is observed on the crown of a faceted diamond.

阅读更多

Quarterly Crystal: Panasqueira Quartz

Numerous inclusions are observed in a parallel cluster of two quartz crystals from Minas de Panasqueira in Portugal.

阅读更多

Small “Surprise” in Elbaite Tourmaline

Diopside crystals observed in elbaite tourmaline resemble an exclamation point.

阅读更多

“Smoke Rings” in a Non-Beryllium-Diffused Sapphire

A rare look at a smoke ring pattern identified in sapphire without the presence of beryllium.

阅读更多

Stellate Zircon in a Paraíba Tourmaline

Fiber-optic light reveals a remarkable set of stellate inclusions in blue-green Paraíba tourmaline.

阅读更多

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