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Lot 8509
Sapphire and Diamond Ring
3 December 2006, 11:00 PST
Los AngelesSold for US$11,950 inc. premium
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By Paolo Costagli
A beautiful antique, cushion-shaped stone, weighing approximately 11.95 carats, of classic cornflower blue color characteristic of fine stones from Ceylon. Simply set in an elegant platinum mount, the basket and shank accented with numerous brilliant-cut diamonds, size 6 ½ , with maker’s mark PC for Paolo Costagli.
A beautiful antique, cushion-shaped stone, weighing approximately 11.95 carats, of classic cornflower blue color characteristic of fine stones from Ceylon. Simply set in an elegant platinum mount, the basket and shank accented with numerous brilliant-cut diamonds, size 6 ½ , with maker’s mark PC for Paolo Costagli.
Footnotes
Accompanied by an AGTA certificate #10019608 dated October 24, 2005 stating that the sapphire shows no evidence of heat treatment. Note: the stone was recut from the original weight of 13.24 carats indicated on the certificate to its present weight of 11.95 carats

