Lot 297. An impressive 48.38 carats Ceylon rectangular-cut sapphire and diamond ring, by Bulgari. Estimate USD 500,000 - USD 700,000. Price realised USD 607,500 © Christie’s Images Limited 2017.

Set with a rectangular-cut sapphire, weighing approximately 48.38 carats, flanked on either side by a tapered baguette-cut diamond, ring size 8 1/4, mounted in platinum. Signed Bulgari, with maker's mark

Accompanied by report no. CS 1075074 dated 26 January 2017 from the AGL American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of this sapphire would be classified as Ceylon (Sri Lanka), no gemological evidence of heat or clarity enhancement

Christie's. Magnificent Jewels, 26 April 2017, New York, Rockefeller Center