オンラインのブライダルジュエリーの小売店として2002年に設立されたZbirdは、中国で最も成功したブランドのひとつです。

A profile of three women who changed the course of GIA history.

Research using diamond presses gives insight to planetary formation

中国人デザイナーの Kaka Zhangが、彼女のジェダイトの宝飾品に秘められた芸術的なインスピレーションと事業戦略を打ち明けます。

Examines the last two decades’ advances in analyzing and understanding the formation of natural diamonds, and their relation to the earth’s formation.

Analyzes the effects of coating on green jadeite specimens using DiamondView imaging, microscopy, spectroscopy, and Raman spectrophotometry.

Zircon clusters and other inclusions help to create an unusual vivid purple-pink morganite specimen.

In these two extremely rare specimens, demantoid garnet replaced coral and gastropod fossils.

This 9.12 gram amber composite featured a combination of natural and imitation amber, accompanied by natural and artificial insect inclusions.

The centerpiece of this brooch is a 98.67 ct Melo pearl, believed to be one of the world's largest.

In piecing together this treasure trove of signature Italian style, the book brings readers closer to understanding the appeal and artistry of jewelry making beyond that which is traditionally associated with fine jewelry.

G&G recognizes the innovations and milestones of 2013 as we move into our 80th year of publication.

Overview and commentary on the 2013 Journal of Gemmology article “Titanium-Bearing Synthetic Alexandrite and Chrysoberyl.”

Explores the emergence of the Luc Yen area as a producer of corundum, spinel, tourmaline, and other colored stones.

Reports on the microscopic, chemical, and spectroscopic features that differentiate the high-quality Baw Mar sapphire from “classic” gem-quality Burmese sapphire.

Diamond inclusion research yields age and insight into earth history

Review of

南アフリカのカリナン鉱山は、世界でこれまで知られる中で最大の宝の山とも呼べ、初めてダイヤモンドが発見されてから111年後も、依然として主要な宝石を産出しています。

中国最大といわれる宝石小売業者の舞台裏。

Review of