A Computer Program for Gem Identification
The Chemical Distinction of Natural from Synthetic Emeralds
Natural and synthetic emeralds are studied to identify the chemical differences between them.
Inclusions in Taaffeites from Sri Lanka
Fascinating photomicrographs of inclusions in Sri Lankan taaffeites.
An Era of Sweeping Change in Diamond and Colored Stone Production Markets
The diamond, colored stone, and pearl businesses have witnessed unprecedented change since the turn of the 21st century.
Exploring the Origin and Nature of Luminescent Regions in CVD Synthetic Diamond
In the DiamondView instrument, blue to blue-green luminescent zones may be seen in CVD synthetic diamond when the growth run has been interrupted and resumed.
Ruby and Sapphire from the Tan Huong-Truc Lau Area, Yen Bai Province, Northern Vietnam
Primary and secondary deposits in the Tan Huong–Truc Lau area of northern Vietnam’s Yen Bai Province have supplied rubies and some sapphires for more than a decade.
Tsavorite and Other Grossulars from Itrafo, Madagascar
Since 2002, tsavorite and other grossular varieties have been recovered from a primary deposit at Itrafo, a village in the Andrembesoa area of central Madagascar.

Diamond Laser
Overview and commentary on the 2014 Optics & Photonics News article “Diamond Raman Lasers.”





供不应求的银器
银器的销售如火如荼。 “National Jeweler”(《国家珠宝商杂志》) 和 Nielsen (尼尔森)共同举办的一项调查显示,约有 91% 的珠宝零售商表示,2011 至 2012 年间的银饰珠宝销量有所上升。 平均涨幅为 19%。




10 颗鲜艳的宝石带来栩栩如生的秋天色彩
颜色是 4C 标准的首要标准,也许最能将宝石特性体现得淋漓尽致。 从亮丽的蓝色和铁灰色到浓郁的棕色和火热的红色,宝石颜色五彩缤纷。 Pantone Color Institute 是设计师和时尚达人的色彩仲裁者,在其 2013 年秋季色彩报告中选择了 10 种最钟爱的颜色。 赋予其充满异国情调的名字,如爱莎伊 (Acai)、桑巴 (Samba) 和米科诺斯 (Mykonos) 蓝,预计这些时尚色彩将主宰金秋时节。


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