Conclave 2026

This GIA session will be repeated.

Untreated vs treated gemstones have very different market values, which require the disclosure of treatments to be crucial. From initial discovery to showcasing the treatment's overall effect, this presentation will explore some of the most significant treatments introduced into the market in the 21st century. Gemstone treatments are not going away, which means educating oneself on them is an important tool for anyone in the trade.