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Lot 50

A COLOR-CHANGE COBALT SPINEL AND DIAMOND RING, RUSSIA

6 December 2021, 11:00 EST
New York

Sold for US$20,312.50 inc. premium

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A COLOR-CHANGE COBALT SPINEL AND DIAMOND RING, RUSSIA

Centering an oval mixed-cut violetish blue changing to purple color-change cobalt spinel, weighing 8.21 carats, accented by round brilliant and single-cut diamonds; mounted in 18k gold and white gold; size: 7 1/4; with Russian hallmarks

Footnotes

Accompanied by GIA report no. 1152361599, dated 17 April 2013, stating that the violetish blue to purple color-change spinel, weighing 8.21 carats, is a natural cobalt spinel with no indications of heating.

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