Unusual Purple Inclusion in Emerald

Microscopic examination of an emerald revealed a purple banded inclusion with the appearance and optic character of fluorite.

阅读更多

Screening of HPHT Synthetic Melee With Natural Diamonds

A screening service allows the lab to screen for synthetic material in diamond melee parcels.

阅读更多

Non-Nacreous Purple and White Pearls Reportedly from Spondylus Species

Examination of pearls with a dominant purple hue, reportedly from the Spondylus calcifer mollusk.

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