Sapphire 1.33 ct calibrated-set in northern Vietnam’s Yen Bai

in northern Vietnam’s Yen Bai province

A fine purple sapphire from Sri Lanka

shifting to a pinkish tone under incandescent light

but far less noticeable in hand without a loupe

Sapphire 1.33 ct calibrated-set in northern Vietnam’s Yen BaiA yellow sapphire, cut into a contemporary cushion. The rough was purchased as unheated at the mine, but it has not yet been submitted to the lab. Over 90% of these rough pieces are unheated, though sometimes miners heat the rough directly at the mine. For this reason, we offer this sapphire as heated (even though it is very likely unheated) until it is verified by our lab. We will update the treatment status in approximately 1014 days from the date