Four Treasures Reference Database
Record No. 2942
Twelve-rayed star sapphire of interest
Report
Du Toit, G. (2009) Twelve-rayed star sapphire of interest. Bangkok: Gemological Institute of America, March 22, 2 pp.
RWHL*
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corundum, star stones, phenomena, inclusions.5, gems
Star sapphires are submitted to the laboratory on a regular basis and black or golden twelve‐rayed stars from Thailand are not uncommon, but when this dark purple twelve‐ rayed star sapphire was submitted to the laboratory for identification recently it attracted our attention.