Sotheby's, St. Moritz, February 2001 Lot 243 Ruby and Diamond Ring. Oval Burmese Ruby 5.16 cts. 
Claw-set with an oval ruby weighing 5.16 carats within a border of heart shaped diamonds alternately-set with marquise-shaped stones, mounted in white gold, size 50.5.
Accompanied by a GRS report no. 9907127 stating that the ruby is of Burmese origin, no indication of thermal treatment.
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