Sotheby's, New York, October 2001 Lot 111 Red Spinel and Diamond Ring. 
the cushion-shaped red spinel weighing 6.90 carats, surrounded by 2 pear-shaped and 12 round diamonds weighing approximately 2.50 carats, mounted in gold and platinum, size 6.
Accompanied by GRS report no. 2001 - 02225 stating natural spinel
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