A 11.87 carats central mixed-cut spinel and diamond ring

The central mixed-cut spinel, weighing 11.87 carats, to a brilliant-cut diamond border and shank set with single-cut diamonds, mounted in platinum and 18k white gold, ring size 7. Estimate: HK$180,000 - 220,000, $23,000 - 28,000 - Unsold.

Accompanied by a certificate from American Gemological Laboratories, stating that the natural red spinel is of Burmese (Myanmar) origin and have no gemological evidence of enhancements or treatments. Report number CS 39947, dated 5th August 2008.

Bonhams. Fine Jewellery and Jadeite, 4 Dec 2008. Hong Kong. Copyright © 2002-2008 Bonhams 1793 Ltd., Images and Text All Rights Reserved. www.bonhams.com