Sotheby's, St. Moritz, February 2001 Lot 231 Sapphire and Diamonds Brooch. 
Designed as a butterfly, the body set with rose diamonds, the wings decorated with oval sapphires, interspersed with rose diamonds, mounted in 18 Karat blackened gold.
Accompanied by GRS report no. GRS2000-10029 stating that the sapphires are of Burmese origin, no indication of thermal treatment.
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