GIAチームは、中国への遠征中に、彫刻中の最も大型のジェダイトを紹介されました。 自然の美しさと名人の人生の何年もの歳月を捧げて作り上げるこの驚くべき芸術性は、現在も作業が続けられています。

One of the largest blue diamonds ever found ‒ weighing in at 122.53 carats ‒ was unveiled this week by Petra Diamonds; De Beers held the line on prices at the June 10-13 sight, which totaled about $650 million.

真に傑作と呼ぶにふさわしい、世界でも最高級のジェダイトの彫刻をデザインし制作することに打ち込んでいる名匠達の作業場を訪れました。

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。

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

Microradiography reveals wire fillings within a “pearl” created from two separate specimens.

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

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

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

A bangle, thought to be jadeite jade, is revealed by laboratory testing to be polymer-impregnated aventurine quartz.

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

Overview and commentary on the 2013 InColor article “Blue Sapphires and Beryllium: ‘An Unfinished World Quest.’”

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

A review of Jewels by JAR

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.

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

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