In recent months, sapphires treated under heat and pressure have been documented in the trade.

Garnets have been known since antiquity. However, it was only during the late nineteenth century that the green variety demantoid—named for its “diamond-like” luster—was discovered in the Ural Mountains of Russia.

Chronicles the history of this cultural landmark, originally assembled for the Prussian king between 1701 and 1714, and its reconstruction by the Soviet Union starting in 1979.

Provides a visual guide to the internal features of natural, synthetic, and treated diamonds.

Examines the color origin of color-change diaspore, known commercially as Zultanite, and compare the effectiveness of the chromophores it shares in common with corundum.

新的图解宝石指南帮助小规模手工矿工进一步了解他们发掘的宝石的品质和等级。

World-class fancy colored diamonds and truly historic jewels highlighted the 2018 auctions, but total jewelry sales were down from 2017.

正在为特别的人挑选礼物吗？十二月生日石为每一种品味、风格和个性都提供了丰富选择 — 即使十二月并不需要庆祝生日也可以但挑无妨。

11 月 14 日，十件 Marie Antoinette（玛丽·安托瓦内特）的珠宝以及 90 件其他王室家族珠宝在苏富比日内瓦拍卖会上拍出了惊人的价格。

秋季，大自然赐予我们色彩亮丽的变色树叶，还有缤纷落日照射形成的绚丽万花筒。

本系列第 2 部分（共 5 部分）：有色宝石（非钻石）的价值要素、设计和切工品质。本文建立了一套用于讨论切磨式样的通用语言，重点阐述基本的刻面式样，同时也简要介绍凸圆面和珠饰。