記者発表の検索結果

香港貿易発展局（HKTDC）主催の香港イベントにご参加ください。機器のデモ、ビジネス支援ツール、教育プログラム、現地ラボサービス、カラーストーンのグレーディングサービスなどGIAの最新情報を探求しましょう。 さらに、香港コンベンション・エキシビション・センター（HKCEC）のGIAメインブースにある没入型真珠体験コーナーもお見逃しなく！

特別な対応

Young students anywhere in the world can now experience the wonder of gems and minerals with GemKit™ by GemKids®, an online treasure trove of information and activities from GIA®, the Gemological Institute of America, the 90-year-old global leader in gem and jewelry education.

In July 2025, staff from GIA, including GIA Executive Vice President and Chief Research and Laboratory Officer Tom Moses and Vice President of Research and Development Dr. Wuyi Wang, examined a rough diamond weighing 2,488.32 carats

CARLSBAD, Calif. – March 28, 2019 – On April 30, GIA will introduce the GIA Diamond Origin Report service which will confirm the country of origin of polished diamonds.

GIAの使命は、広く一般の信頼を確保することです。 GIAを主導するのは、理事会、幹部スタッフ、世界各地のラボやキャンパスのディレクターなどです。

CARLSBAD, Calif. – Aug. 19, 2019 – Aspiring gem and jewelry professionals in Shenzhen, China will now have direct access to GIA education programs through Peking University Resource College.

GIA will launch revised evaluation services for D-to-Z laboratory-grown diamonds on October 1

Beginning later this year, GIA will start using descriptive terms to characterize the quality of laboratory-grown diamonds