EXTREMELY RARE 3.35 CTs BI-COLOR BLUE SPINEL, 100% NATURAL UNHEATED GEM TANZANIA

EXTREMELY RARE 3.35 CTs BI-COLOR BLUE SPINEL, 100% NATURAL UNHEATED GEM TANZANIA. Dimension : 9.70 X 7.70 X 5.70 MM.

Hardness : 7.5 - 8.

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