



Laboratory-Grown Diamonds: Demand Rises, Prices Fall
The proliferation of laboratory-grown diamonds into the market continues to dominate industry news. Plus: Natural Diamonds, Kimberley Process


Adapting to Changing Workplaces: GIA Offers Employment Insight
GIA Career Service advisors offer tips on how to navigate the changing workforce and consumer attitudes for success in the gem and jewelry industry.

Making Connections in 2019: Alumni Association India-Themed Event, Buccellati Contest Winner, and Other GIA Activities in Tucson
GIA hosts a variety of events and exhibits in Tucson each year. Find out how GIA connected with alumni and friends at the 2019 Tucson shows.

图森之行激起地质教授和出版商的返校热情
身为地质学家和出版商的他取得了研究宝石学家 (GG) 文凭,因此可以和访问他所运营的地球科学网站——Geology.com 的访客分享更多有关宝石材料的信息。

Charts: Inclusions in natural, synthetic and treated opal
Renfro N.D., Koivula J.I., Muyal J., McClure S.F., Schumacher K., Shigley J.E. (2019). Charts: Inclusions in natural, synthetic and treated opal. Gems & Gemology, Vol. 55, No. 2, pp. 244-245.
Geographic origin determination of emerald
Saeseaw S., Renfro N.D., Palke A.C., Sun Z.Y., McClure S.F. (2019) Geographic origin determination of emerald. Gems & Gemology, Vol. 55, No. 4, pp. 614-646.
Recent advances in understanding deep mantle carbon from diamond: Contributions from the DMGC
Shirey S.B., Smit K.V., Pearson D.G., Walter M.J., Aulbach S., Brenker F.E., Bureau H., Burnham A.D., Cartigny P., Chacko T., Frost D.J., Hauri E.H., Jacob D.E., Jacobsen S.D., Kohn S.C., Luth R.W., Mikhail S., Navon O., Nestola F., Nimis P., Smith E.V., Stachel T., Stagno V., Stern R.A., Steele A., Thomassot E., Thomson A.R., Weiss Y. (2019) Recent advances in understanding deep mantle carbon from diamond: Contributions from the DMGC. In B. Orcutt, I. Daniel, and R. Dasgupta, Eds., Whole Earth Carbon: Past and Present, Cambridge University Press, pp. 89-128.

历史文献清单:产自纳米比亚的冲积钻石
How old are diamonds? Are they forever?
Smit K.V., Shirey S.B. (2019) How old are diamonds? Are they forever? Gems & Gemology, Vol. 55, No. 1, pp. 102-109.
Kimberlites: Earths diamond delivery system
Smit K.V., Shirey S.B. (2019) Kimberlites: Earths diamond delivery system. Gems & Gemology, Vol. 55, No. 2, pp. 270-276.


Pink Diamonds, Russia’s Amber Room, and More…

The History and Reconstruction of the Amber Room
Chronicles the history of this cultural landmark, originally assembled for the Prussian king between 1701 and 1714, and its reconstruction by the Soviet Union starting in 1979.

The Gemological Characteristics of Pipi Pearls Reportedly from Pinctada maculata
Reveals the internal features and spectroscopic data of these small natural pearls and offers the means of separating them from pearls of related mollusk species.

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