Platinum, 18ct gold, aquamarine and diamond brooch, Schlumberger, Tiffany & Co., circa 1992.Estimate $16,000 - $22,000. Photo Sotheby's.

Modelled as a starburst centring a claw-set emerald-cut aquamarine weighing approximately 22.00 carats framed within a surround of polished flame motifs embellished at intervals with brilliant-cut diamonds, the diamonds together weighing approximately 0.50 carats, approximately 40 x 35mm, signed Schlumberger, Tiffany & Co. Accompanied by a Schlumberger Tiffany & Co. box.

Sotheby's. Important Jewels, 31 Aug 2015,  Sydney, 6 PM