GIA, the leader in gemological research, education and science-based gem identification and grading services, is expanding its gem origin services to provide retailers and consumers with the diamond source information they demand.

“Understanding our impact on the environment, societies and communities in which we operate is integral to our important consumer protection mission,” said GIA President and CEO Susan Jacques, speaking about the launch of the first GIA sustainability report on Friday, June 2, at the JCK Las Vegas show.

GIA, the leader in gemological research, education and science-based gem identification and grading services, is expanding its gem origin services to provide retailers and consumers with the diamond source information they demand.

100 GIA researchers, leading academics, independent industry experts and GIA Governors and executives met in person and virtually at GIA’s global headquarters in Carlsbad, Calif., November 1-3 for the Institute’s 16th annual research meeting.

Review of Gem Testing Techniques by Alan Hodgkinson.

GIA博物館とラボは、GIA博物館のトルマリンとラボの技術を使用し、JDTの授業のデザインプロジェクトで学生たちとコラボレーションしました。

Technology developed by Hong Kong-based Fukui Shell Nucleus Factory creates opportunities for tracing cultured pearls through the supply chain.

Members of the first class to complete the GIA Graduate Gemologist® program in New York City gathered.

CARLSBAD, Calif. – Aug. 19, 2021 – The Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design is usually announced early in the year amid the glorious colors of the Tucson gem shows.

CARLSBAD, Calif. – Feb. 3, 2021 – Whether you are new to the gem and jewelry industry or a veteran looking to expand your knowledge, education from GIA will equip you with the tools to succeed. A scholarship from GIA makes achieving your educational goals financially attainable.

41 leaders from every global gem and jewelry sector gathered recently for a transformative educational experience at the 2023 GIA Global Leadership Program at Harvard Business School (HBS)

GIA field gemologists recently completed their one-hundredth expedition, adding to the Institute’s unrivaled store of independently verified gemological information from colored stone mining locales around the world.

マダガスカル産と報告されており鉛ガラス充填でクラリティが向上されている34のスタールビーの予備検査。 他の鉱脈産のスタールビーとの比較が含まれています。

ピンクダイヤモンドの顕微鏡検査と分光検査により、鉱物コーサイトの内包物が観察され、化学的、物理的な歴史が明らかになりました。

ダイヤモンドのクラリティとはインクルージョン（内包物）やブレミッシュ（傷）が無いことの程度を表します。

ほとんどの宝石品質のダイヤモンドのカラーグレードは、どの程度無色であるかが基準となります。

ダイヤモンドのカットは形状のことだと思われがちですが、実際はダイヤモンドのカットグレードとはダイヤモンドのファセットが光といかに良く相互作用するかを評価するものです。

7つの魅力的なピンクカラーを持つCVD合成ダイヤモンドの検査。