AuctionsMay 14, 2026
White Diamonds Lead Sotheby’s Auction, Blue Diamond Does Not SellA matching pair of 18.38-carat, D-color diamonds from Botswana’s Jwaneng mine sold for $3.3 million, the top lot of the jewelry auction.
Online Education from GIA Experts
Start learning from anywhere with self-paced, online courses created by the leader in gemological research. GIA® offers courses designed for working professionals in diamonds, colored stones, pearls, and jewelry.
Flexible. Self-Paced. Hands-On.
How GIA Online Education Works
Earn your diploma by completing a combination of self-paced, online courses and in-person lab classes that fit your schedule.
Online courses allow you to study whenever and wherever you want:
- Submit assignments and take exams at your own pace through an easy-to-use online platform.
- Interact with GIA instructors able to answer your questions and guide you through coursework.
Short lab classes are offered in-person at GIA campuses in New York, Carlsbad, CA, and beyond.
- Learn gem identification and grading skills using professional equipment.
- Gain hands-on experience using microscopes, polariscopes, a loupe, and more.
GIA online diplomas that require in-person lab classes include Graduate Diamonds, Graduate Colored Stones, Graduate Pearls, and the respected GIA Graduate Gemologist®.
AJP® Online Diploma
One of GIA’s most popular online diplomas, the GIA Applied Jewelry Professional™, can be earned by completing three online courses (no lab classes required):
- Diamond Essentials
- Colored Stone Essentials
- Jewelry Essentials
Essential Knowledge for Gem & Jewelry Professionals.
Have more confident conversations with customers and colleagues right away. The AJP® online diploma brings you information you can apply to your career immediately. Courses cover everything from the basics of diamonds, rubies, emeralds, and sapphires, to jewelry design, setting styles, and jewelry care.
GIA Scholarships
GIA offers scholarships to qualifying applicants for both online courses and lab classes. Online applications are available twice a year – in March and September.
Find More Information
- Apply for courses.
- View online diploma requirements.
- Sample a complimentary lesson for each online course.
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