Cobalt Blue 1.63 ct

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Identification: Natural Cobalt Spinel

Origin: - Vietnam (Luc Yen)

Weight: 1.63 ct

Dimensions: 6.68 x 6.54 x 4.85 mm

Cut: Brilliant/step

Shape: Cushion

Color: Blue

Comment: No identification of thermal treatment

Lab report: GRS2019-102603

Lot no: S.473


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