デザイナーとして頻繁に世界中を旅することにより、創造的な実験、デザインのインスピレーションと社会的責任の基礎を築きました。

In 2011, the authors began to see cases of low-quality natural pearls being used as unconventional “beads” for cultured nacre growth.

Identifies 13 copper-bearing tourmalines, which have traditionally been assumed to be elbaite species, as liddicoatite.

A review of Illuminations, from Earth to Jewel, at the Museum of Mineralogy at the ParisTech School of Mines in France.

Examines Jaipur’s role as a colored stone cutting and jewelry manufacturing center, with profiles of 17 companies and their factory, trading, and retail operations.

Recounts an expedition to Mozambique’s important deposits of ruby, spinel, and tourmaline, which have yet to be fully explored.

Results from GIA’s recent testing of a 5.19 ct CVD synthetic diamond, the largest it has examined to date.

The chemical composition and spectroscopic characteristics of 14 gold sheen sapphires are examined.

Reports on a recently discovered eluvial deposit of honey yellow danburite with excellent transparency.

Results from GIA’s recent testing of a 10.08 ct blue HPHT synthetic diamond, the largest HPHT synthetic recorded to date.

An apatite crystal cluster, notable for its morphology and size, is found in a feldspar specimen.

Provides a visual guide to the internal features of natural, synthetic, and treated emeralds.

Dramatic growth features are found on the surface of a titanite specimen from Russia.

Describes the chemical, morphological, and microscopic properties of the first gem-quality synthetic emeralds ever produced, offering a historical perspective on their development.

An examination of jadeite decorated with smaller jadeite ornaments.

A rare Tasmanian trapiche-type sapphire, found during a field expedition, is examined.

Unusual doublets created from two different synthetics are revealed at the Carlsbad laboratory.

A turquoise bead is found to have an artificial pyrite and resin matrix.

ボルダーオパールの人気は、ますます高まっています。 オーストラリアのクイーンズランド州中央部では、十数か所以上からこの石が生産されています。 このユニークな宝石つついて詳しくGIAのフィールドジェモロジストと一緒に探りましょう。

展示ケースでは、受賞歴のあるダイヤモンド、巨大なクォーツのロッククリスタル、珍しい彫刻が施された宝石やさまざまな時代のデザインを代表するジュエリーの作品をご覧いただけます。