Colored Stone Grading Websites
GemResearch Swisslab (GRS) Specializing in Origin Determination of Fin
- gemresearch.biz
Not Applicable
$
8.95
GemResearch Swisslab (GRS) Specializing in Origin Determination of Fin
- grs-scarlet.biz
Not Applicable
$
8.95
IGL | Independent Gemological Laboratories New York
- dia-lab.net
Independent Gemological Laboratories is an organization that authenticates and appraises diamonds and other gemstones. Using the latest technologies. Independent Gem Labs analyzes and characterizes both loose stones and mounted jewelry, then issues certificates reporting its findings.
Not Applicable
$
8.95