莫桑比克北部的Niassa (尼亚萨) 和Cabo Delgado (德尔加杜角) 地区出产的红宝石

Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire

The name ruby comes from the Latin word ruber, which means “red.” The glowing red of ruby suggested an inextinguishable flame burning in the stone...

Learn about ruby's durability and how to care for your ruby jewelry.

Ruby can command the highest prices of any colored gemstone. The per-carat prices of fine-quality rubies have been rising consistently, many times breaking auction records. Click here and learn about the factors that make ruby so desirable!

Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire.

了解莫桑比克红宝石的开采历史、特征和市场需求等信息。

A new report from GIA's Bangkok laboratory,

A new report from GIA's Bangkok laboratory examines a set of 120 NBC samples stated to be of "Tahitian" origin.

The rigors and often-harrowing conditions of gemology field expeditions are no match for 30-year Marine veteran with a love of gems.

GIA 曼谷鉴定所为 41 颗柬埔寨-泰国红宝石出具的分析报告。