AIC23 GJ - Origin Determination for Colored Stones: (Why) Does it Matter?

Session Description

Geographic origin determination has become one of the major services gemological laboratories provide to the gem and jewelry industry. While origin can be an important part of the story of a gemstone, origin reports issued by gemological laboratories are often used to justify dramatic differences in the value of a stone depending on whether the stone came from a classical or modern source. This presentation will provide an overview of the current state of knowledge of geographic origin determination for colored stones and discuss possible future protocols for origin reporting.


Aaron Palke, Ph.D., GG | Sr. Manager, Colored Stone Research | Gemological Institute of America

Continuing Education

Review of this session recording will award 1 CE hour. 

CPE credit is not awarded for this pre-recorded offering. 


Session Recording
Open to view video.
Open to view video.
Course Certificate
1.00 CE credit  |  Certificate available
1.00 CE credit  |  Certificate available Open certificate for the option to print.