Optical properties in a taaffeeite are explored.

A diamond’s inclusion, with a radiation stain shaped like a halo, is found to be monazite.

An opal rough is immersed in water and treated with oil and Opticon to observe effects on transparency and play-of-color.

Updates on Afghan and Tajik materials, as well as treatment options to improve the clarity of various types of tourmaline.Updates on Afghan and Tajik materials, as well as treatment options to improve the clarity of various types of tourmaline.

Freeform fordite accumulated from a now-defunct method of painting automobiles was on display at Tucson.

A report from the International Colored Gemstone Association’s Gemstone Industry & Laboratory Conference (GILC), held in Tucson, Arizona on February 1, 2016.

An emerald from a largely unexplored Chinese deposit is seen at Tucson, along with a pink sapphire recut after removal from a necklace.

A closer look at the Spectrum award-winning pendant from Nature’s Geometry.

A debris pattern within a rose quartz’s fracture resembles a dinosaur’s footprint.

Phase changes illustrate the temperature and pressure conditions in the fluid inclusion system of a Sri Lankan sapphire.

看看宝石艺术家 Alexander Kreis（亚历山大·克瑞斯）是如何将拓帕石原石晶体打造成宝石切割艺术的杰作。

阅读我们对有色宝石趋势、独特设计和行业预测的深度报道，加入宝石展览会的虚拟之旅。

《宝石与宝石学》（2016 年春季刊）内容摘要。

透过显微镜窥探宝石，即可发现另一个世界。内含物揭示了宝石从地球深处到达地表的历程。

跟随 GIA 实地宝石学家的脚步，前往充满异国风情的缅甸摩谷，开启一段真正的宝石开采冒险之旅。 这个富有传奇色彩的产地被称为“红宝石山谷”，还出产其他众多宝石品种。

走进一个不为西方人了解的世界——一个王公及其珠宝的世界，一个令现代商业和娱乐大亨以及皇族垂涎的世界。 看看现今采用珐琅 Kundan meena 珠宝和皇家气质的 polki 钻石制作的梦幻般的艺术品。

由于宝石和珠宝能激发力量与积极性，因此经常被用作幸运符.

在这本大书（重达 33 磅，打开时有三英尺宽）中探索神奇的钻石世界，观赏以往展览中展示钻石细节与美丽的照片库。

加入 GIA 的蒙大纳州野外远征队，让我们带您去蓝宝石矿山，在那里，您可以发现矿区的天然之美，看到强烈的个人主义者在那里开矿。

情人节珠宝和宝石