GIA CAMPUSES ARE WORLDWIDE. With schools in major gem and jewelry centers around the world, GIA campuses are exciting learning environments. From the bustle of Mumbai’s diamond trading center to the ...

Whether you’re taking the next step in your professional journey or starting a new career, GIA courses and diploma programs prepare you for success. We offer the finest gem and jewelry education in ...

Gems & Gemology, the professional quarterly of GIA, debuted in 1934.Appearing in the 306 th issue, this article looks back at the first 75 years. By reviewing the journal’s milestones, it also traces ...

以下是 GIA 将休业的法定假期列表。 2025 年 5 月 5 日（星期一） 玛哈•哇集拉隆功国王陛下加冕（补假） 2025 年 5 月 12 日（星期一） 卫塞节（补假） 2025 年 6 月 3 日（星期二） 王后陛下诞辰 2025 年 7 月 10 日（星期四） 守夏节 ...

The June Hong Kong Jewellery & Gem Fair opens on June 22, a mid-year trading event for the gem and jewelry trade. Visit GIA at booth 3M100. Learn about sales tools, aids and apps available through the ...

GIA scholarship application cycle is from April 15 to May 15, 2023. To apply, click the button below to learn more. GIA-administered scholarships are available for GIA campuses worldwide. • Applicants ...

Having visited the Chinese markets processing and selling this Guatemalan material in Jieyang and Guangzhou, Heng reported that one of the largest miners was sending approximately 8 tons of rough each ...

For the first time ever, the famous Hope diamond was graded by a widely recognized system. Although the 45.52-ct weight was confirmed, the GIA Gem Trade Laboratory graders found the clarity—recently ...

Designed for clients who seek in-depth insights into every aspect of a jewelry item. Comprehensive analysis of the diamonds in an item, including number of stones, shape, estimated carat weight, color ...

CARLSBAD, Calif. – June 12, 2025 – The Gemological Institute of America (GIA) has evaluated more than 30 rare and historically significant jewels ahead of Christie’s Magnificent Jewels auction, taking ...

This specimen represents one of the largest cultured pearls tested by GIA from the Pinctada maxima mollusk.Pinctada maxima is the largest species in the Pinctada genus, typically producing pearls ...

At the AGTA show, the author spoke with Brent Smith, owner of Phoenix Gems (Holly, Michigan), who shared a few parcels of rough spinel of different colors recently mined in Malawi. According to Smith, ...