Take a behind-the-scenes look at some of the gems, minerals and jewelry on display at GIA in New York.

モゴックの宝石市場とカッティング産業の内部視察。

GIAフィールドジェモロジストのシニアマネージャーを務めるVincent Pardieuと、GIA教育フィールドジェモロジストのマネージャーを務めるAndrew Lucasは、宝石学フィールドワークを遂行するために共同作業しています。

A review of the new edition of Gem Identification Made Easy by Antoinette Matlins.

A review of Jewels by JAR

Review of Wonders within Gemstones II, by Anthony de Goutiere.

Overview and commentary on the 2013 Journal of Gemmology article “Synthetic alexandrites grown by the HOC method in Russia: Internal features related to the growth technique and colorimetric investigation.”

Deep blue fluorescence in a CVD synthetic diamond mimic patterns found in natural specimens.

Cultured pearl market update from the 2014 gem shows in Tucson, Arizona.

Fossilized gastropod shells, trademarked for use in jewelry, are exhibited at the 2014 Tucson gem shows.

Advances in CVD growth technology have resulted in crystals that yield well-proportioned round brilliant cuts.

Red beryl, mined from Utah and displayed in both loose form and in suites of jewelry, were seen at the AGTA show in Tucson.

Review of Walter Schumann's Gemstones of the World.

Updates on the corundum, paraíba tourmaline, and alexandrite markets from the 2014 gem shows in Tucson, Arizona.

For the first time, GIA's laboratory has examined tanzanite color-coated with titanium.

Stunning examples of gem cutting and design from the GJX Show in Tucson, Arizona.

Fine unheated tanzanite, untreated yellow sapphire, and heated pink zircon on display at GJX in Tucson.

An overview of the 2014 gem shows in Tucson, Arizona.

Documents a series of visits to Myanmar in search of exceptionally bright pinkish red spinels possessing no dark tones.

A study of the nacre and the cavity of a large Pinctada maxima cultured pearl yields a theory on the specimen’s formation.