在过去的 35 年里,人们见证了深圳从一个贫穷的渔村转变成为一个现代化的大都市。 如今,它是中国最重要的经济中心之一,也是中国宝石和珠宝行业的前沿。 照片版权属 Istockphoto 。 简介 在 ...
一月生日石柘榴石是品种最丰富的宝石之一,因为它有许多不同的颜色。柘榴石生日石可在世界各地进行开采,象征着许多不同的乐观情绪。了解更多关于这种独特生日石的信息。 紫水晶是二月 ...
Emerald, the birthstone for May, has been beloved for millennia, evoking rebirth and renewal. Widely regarded as the definition of green, emerald is the perfect color for spring. From the poetic ...
The GIA Board of Governors - Front Row from left to right: Samantha Ravich, Ph.D., Dave Bindra, Susan Jacques, Lisa Locklear (Board Chair), Stephen Kahler (Vice Chair), Barbara Dutrow, Ph.D., Russell ...
As a consumer, you will regularly encounter in the marketplace gems that have been treated to change their appearance. A topic that often comes up is whether a particular gemstone is or isn’t treated.
Ruby is an incredibly durable gemstone if there are no treatment-related durability concerns. - Courtesy Jan Goodman Co. Hardness and toughness Gem and mineral hardness is measured on the Mohs scale.
Trio of carved green tourmaline dolphins on frosted quartz base. Carved by Gerhard Becker. Gift of John Staver, GIA Collection. Photo by Orasa Weldon. In 1972, an immense pocket of superb tourmaline ...
摄影:Duncan Pay(邓肯·佩); © GIA。 GIA 团队准备在原 Batalha(巴塔利亚)矿的入口处采访帕拉伊巴碧玺传奇人物 Heitor Dimas ...
加利福尼亚州卡尔斯巴德 – 2015 年 4 月 7 日 – 美国宝石研究院 (GIA) 的简体中文版网站(位于 GIA.edu 上)现已上线,让 6.5 亿使用中文作为主要语言的互联网用户可以访问可信资源,包括研究院 ...
GIAではBloomsbury(ブルームズベリー)の中心部に位置するロンドンキ ャンパスにおいて、常勤の宝石学講師を二名募集しています。 候補者は、GGの資格所持および3年間の関連業界での ...
莱索托偏远的马洛蒂山脉堪称这个内陆国风景最美的地区之一,该国全境都完全被南非共和国环抱。 这些山脉也是世界上若干最令人垂涎 的 IIa 型钻石和大颗钻石晶体的原产地。 摄影:Robert ...
Consumers now, more than ever, have a heightened awareness of sustainably and ethically sourced products. The GIA Diamond Origin Report uses scientific evaluation to provide confirmation of a ...