Conclave 2026

This GIA session will be repeated.

Geographic origin and traceability are at the front of everyone's mind in the gem and jewelry industry. Everyone would love to know where all of their gemstones were sourced and by whom. Unfortunately, it takes a huge amount of research to develop new origin services, and so most gem labs limit origin determination to a small number of important stones. Over the last 10 years, GIA has been scientifically investigating several new materials, and over the last year, has launched 4 new origin services for jade, opal, demantoid, and peridot. This lecture will lay out the scientific basis for geographic origin determination and discuss the research that goes into developing a new origin service.