GSI - Gemological Science International Certification

comments (0) November 4th, 2018     

Pin It

jardtr2 jardtr2, member
Love it! no recommendations

GSI certificate

Gemnological Science International offers gemstone identification, grading and appraisal services exclusively to the fine jewelry industry - including GSI certificates.

posted in: houseware

Comments (0)

You must be logged in to post comments. Click here to login.