“查找零售商”列表上显示的营业时间可能不准确。建议联系各家商店，确认目前的营业时间。 查找零售商 地图 列表 筛选 仅显示满足如下条件的零售商： 店内 GIA 分级钻石 在线 GIA 分级钻石 GIA 培训的员工 GIA Diamond Origin Report GIA Lab Grown Diamond Report 完成 ...

With the withdrawal of Soviet troops from Afghanistan, villagers in the Panjshir Valley are turning their attention to the emerald riches of the nearby Hindu Kush Mountains.

A highly saturated purplish pink to red pezzottaite from a new deposit in Madagascar is encountered in Tucson and tested by GIA researchers.

Figure 1. Pleochroism in a 15 ct tanzanite, as seen with the unaided eye through the crown and the pavilion sides and ends. Photo by Wimon Manorotkul. ABSTRACT While virtually all gemological texts ...

To commemorate the 50th anniversary of The Wizard of Oz, Harry Winston created real ruby slippers set with 4,600 rubies. - Courtesy Harry Winston Red is the color of our most intense emotions—love and ...

A large number of natural-color yellow diamonds are analyzed using grading and appearance aspects among other characteristics to clarify the differences between them and the light yellow diamonds ...

Exploring the various gem and mineral shows in Tucson always has surprises in store, and this year was no exception, with a batch of fluorite specimens from Nigeria exhibited at the Pueblo show by ...