

历史读物清单:The Diamond Fields of South Africa(《南非钻石矿场》):第 1 部分 (1868-1893)
1867 年初,南非钻石的发现标志着钻石探索历史时期的开始。

Historical Reading List: Pearls from India and Sri Lanka


历史读物:加州淘金热

历史读物:埃及的古老祖母绿矿

历史读物 - 缅甸红宝石矿

历史读物:产自印度的珍珠

美国淡水珍珠的诱惑︰ 重访 Latendresse(拉藤德烈斯)家族
John Latendresse(约翰·拉藤德烈斯)被誉为美国养殖珍珠之父。 他还是一位伟大的天然珍珠收藏家,为其家族留下了可观的天然珍珠藏品。 Latendresse(拉藤德烈斯)家族在美国的珍珠行业备受推崇,长久以来,一直支持着 GIA 的珍珠研究。 请跟我们一起来重访这一家族和他们的珍珠藏品。

Exceptional Freeform Tanzanite and Oregon Sunstone Rings
A family sources, designs, and carves gems for extraordinary jewelry and pieces.

Magnificent Sapphires from Montana’s Rock Creek Mine
A look at the 2016 sapphire production from Montana’s Rock Creek deposit.

Negative Crystals in Sapphires
Sapphires from Baw Mar host multiphase inclusions in appealing patterns.


Importance of the Secondary Market for Fine Gems
Exceptional gems that are recirculated in the gem market make an impact at the Tucson shows.

A New Discovery of Emeralds from Ethiopia
A report on a new Ethiopian source of high-quality emerald.

Tourmaline and Sapphire from Nigeria
An update on Nigerian colored stone production is obtained at the Tucson gem shows.


Golden Rutilated Quartz Artisanal Mining Community
Plans to develop a collective in a remote Brazilian rutilated quartz mining community are unveiled.
Jewelry Industry Summit
A report from the second Jewelry Industry Summit, held in Tucson, Arizona on January 29–30, 2017.

Quarterly Crystal:Mystery in Topaz
A topaz hosting a group of inclusions is examined in the Carlsbad lab.

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