GIA 卡尔斯巴德毕业生荣获布契拉提基金会珠宝设计奖

GIA (Gemological Institute of America), together with the Gianmaria Buccellati Foundation, presented the ninth annual Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design on February 6, 2026, to GIA Carlsbad graduate Catherine “Cathy” Aulick.

阅读更多

GIA 前理事 George Rossman博士去世

George Rossman于 2 月 6 日逝世,享年 81 岁。1995 至 2007 年间,他曾担任GIA美国宝石研究院理事会成员,他还是加利福尼亚理工学院 (Caltech) 的矿物学名誉教授。

阅读更多

Susan Jacques荣获 GIA 表彰

11 月初,在加州卡尔斯巴德总部举行的 GIA 理事会会议上,研究院授予 Susan M. Jacques最高荣誉 — Richard T. Liddicoat杰出成就奖。

阅读更多

GIA 将更新彩色宝石鉴定报告

GIA 将于 2026 年 1 月 1 日推出最新设计的彩色宝石鉴定报告和新的服务。

阅读更多

GIA 升级 iD100® 宝石测试设备,用以筛选粉红色钻石

加利福尼亚州卡尔斯巴德 - 2019 年 9 月 5 日 – GIA 于 9 月 4 日发布了业界领先的升级版 GIA iD100® 宝石检测设备,该仪器能够将天然粉红色钻石与实验室制造 (HPHT 和 CVD) 钻石及钻石仿品区分开来。

阅读更多

2026 AWE & HKCEC

诚邀您莅临香港 HKTDC 展会,探索 GIA 的最新动态,包括仪器示范、零售支持工具、课程查询、现场收检服务及 GIA 宝石学家研讨会等活动。 同时,亦不要错过在会展 GIA展示的珍珠体验专区!

阅读更多

73rd Bangkok Gems & Jewelry Fair Trade Show

Join us at the Bangkok Gems & Jewelry Fair to explore a diverse range of gemstones, jewelry and industry solutions from leading Thai and international suppliers. Discover tools, components, and machinery for the trade, and attend GIA seminars on pearls and colored stone origin determination.

阅读更多

“Worms” in Opal

Near-colorless heulandite crystals in an Ethiopian opal resemble the segmented bodies of worms.

阅读更多

Whimsical Growth Tubes in Tourmaline

Microscopic examination reveals intriguing growth tubes in a copper-bearing tourmaline.

阅读更多

Tourmaline in Tourmaline

A perfectly shaped euhedral tourmaline crystal is identified in a faceted tourmaline.

阅读更多

Dark Red Tantalite Crystal in Greenish Blue Sapphire

The blunt termination of a red manganotantalite inclusion displays a striking contrast against a greenish blue sapphire.

阅读更多

Quarterly Crystal: β-Quartz Morphology in Beryl

An aquamarine crystal from Pakistan contains a pseudomorphic quartz inclusion.

阅读更多

Mannardite in Quartz

Fibrous mannardite crystals are observed in three colorless quartz samples.

阅读更多

“UFO” in Diamond

A diamond feather and its reflection resemble an unidentified flying object.

阅读更多

Sea Urchin–Like 3D Radial Fissures in a Heated Mong Hsu Ruby

Examination of a 1.34 ct ruby reveals a unique inclusion formed during heat treatment.

阅读更多

Quarterly Crystal: Almandine-Pyrope Garnet in Diamond

A diamond octahedron from South Africa hosts a rare yellow-orange almandine-pyrope garnet crystal.

阅读更多

Suspended Pargasite Crystal in Pink Spinel

A euhedral prismatic pargasite crystal is identified in pink spinel.

阅读更多

Natural Opal with Unusual Play-of-Color Pattern

Play-of-color pattern in Ethiopian opal is reminiscent of a turtle’s shell.

阅读更多

“Melon” Pearl

A non-nacreous pearl with a netted surface resembles the exterior of a melon.

阅读更多

Gersdorffite in Quartz

Gersdorffite inclusions in quartz exhibit either triangular or hexagonal shapes when viewed from different directions.

阅读更多

上一页第 2 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