自古代以来，欧洲和中东地区的雕刻大师一直将石髓用于制作珠宝首饰，包括浮雕和凹雕。

Lightning Ridge（闪电山脊）是全球优质黑蛋白石之都，这种蛋白石是人们最梦寐以求的一种。 2015 年 6 月，一群 GIA 实地宝石学家参观了澳大利亚新南威尔士的这个传奇小镇。 和我们一起探索这个重要的蛋白石产地吧。

这一互动课程提供了丰富的媒体资源，让 GIA 毕业生能随时了解最新宝石及珠宝新闻和信息。

今年到目前为止，GIA 校友经理 Kate Donovan（凯特·多诺万）已访问过日本、韩国、马来西亚和美国，与校友成员会面并分享故事。

GIA grad Sean Dunn successfully launched an e-commerce plan for his family’s luxury retail jewelry store, J.R. Dunn Jewelers in Florida.

Emerging artist Trishala Ashok – who has won multiple design awards – looks beyond the mundane and minutiae of daily life to create her jewelry.

虽然信贷形势依然严峻，但戴比尔斯公司的高管指出，库存水平已经稳定，认为不会有问题。

与 GIA 实地考察队一同参观蒙大纳州岩溪蓝宝石矿业地区，见证直接从产地采收的精美宝石。

Red fluorescence, rarely seen in natural colorless type IIa diamond, is observed at the New York lab.

An emerald with drill holes containing a resinous material is seen in the New York lab.

An iris agate with a unique growth texture is carved to produce an aurora-like effect.

A polished orbicular chalcedony’s multiple inclusions combine to resemble an aquatic scene.

A pendant, submitted as jadeite, is identified as serpentine.

Located near the Arctic Circle, Diavik is one of the world’s richest diamond deposits and a leader in sustainable mining.

Blisters examined in the Bangkok lab have been treated with an artificial filler.

A quartz double cabochon showcases a garnet placed to imitate an inclusion.

Examples of Burmese amber specimens with well-preserved inclusions that have become available in recent years.

Iridescence is seen in a porcelaneous pearl examined at the Carlsbad laboratory.

Inclusions in technogenic ruby slag help to separate this material from other specimens, both natural and synthetic.