About the project

A reference system, not another gemstone blog

The Gem Index is designed to connect gem identity, mineralogy, properties, localities, treatments, images, and evidence in one navigable system.

Our purpose

We aim to make gemology useful to curious buyers, collectors, students, jewelers, and specialists without blurring the line between verified measurements and editorial interpretation.

How the site grows

Profiles publish in reviewable sections. Unknown or unverified values remain visibly pending. As qualified contributors and reviewers join the project, each revision retains its source trail and change reason.