Challenges in Orienting Alexandrite: The Usambara and Other Optical Effects in Synthetic HOC-Grown Russian Alexandrite
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.”
Books: Gem Identification Made Easy
A review of the new edition of Gem Identification Made Easy by Antoinette Matlins.
Cultured Pearl Market Update – Tucson 2014
Cultured pearl market update from the 2014 gem shows in Tucson, Arizona.
Red Beryl – Tucson 2014
Red beryl, mined from Utah and displayed in both loose form and in suites of jewelry, were seen at the AGTA show in Tucson.
Fine Corundum, Paraíba Tourmaline, and Alexandrite – Tucson 2014
Updates on the corundum, paraíba tourmaline, and alexandrite markets from the 2014 gem shows in Tucson, Arizona.
化石化したドゥルージーシェル –ツーソン 2014 (英語)
Fossilized gastropod shells, trademarked for use in jewelry, are exhibited at the 2014 Tucson gem shows.
サンストーン、ルチルクォーツ、ベリルにおけるひときわ優れた宝石の芸術 － ツーソン2014 (英語)
Stunning examples of gem cutting and design from the GJX Show in Tucson, Arizona.
Natural-Color Tanzanite and Yellow Sapphire – Tucson 2014
Fine unheated tanzanite, untreated yellow sapphire, and heated pink zircon on display at GJX in Tucson.
ダイヤモンドビュー（DiamondView）で珍しい画像のCVD法による合成ダイヤモンド (英語)
Deep blue fluorescence in a CVD synthetic diamond mimic patterns found in natural specimens.
ラウンドで1カラットを上回るCVD(化学蒸着)法による合成ダイヤモンドを香港のラボで鑑別 (英語)
Advances in CVD growth technology have resulted in crystals that yield well-proportioned round brilliant cuts.
Titanium-Coated Tanzanite
For the first time, GIA's laboratory has examined tanzanite color-coated with titanium.
A Look Inside a Remarkably Large Beaded South Sea Cultured Pearl
A study of the nacre and the cavity of a large Pinctada maxima cultured pearl yields a theory on the specimen’s formation.
モゴックにて「ジェダイ」スピネルを求めて (英語)
Documents a series of visits to Myanmar in search of exceptionally bright pinkish red spinels possessing no dark tones.
AOTCグループ製、High-pressure High-temperature（高圧/高温）法で合成されたほぼ無色のダイヤモンド (英語)
Presents the gemological and spectroscopic properties of a suite of synthetic diamonds grown by AOTC using high pressure and high temperature.
Assembled “Pearl” Filled with Wire
Microradiography reveals wire fillings within a “pearl” created from two separate specimens.
80周年を向かえ依然として好調 (英語)
G&G starts 2014 with renewed anticipation and the strongest intention to build on the many notable innovations that shaped the journal in previous years.
Varieties of Rutilated Quartz – Tucson 2014
Thanks to its many varieties and rising value, rutilated quartz garnered attention at the 2014 gem shows in Tucson, Arizona.