Diamond Tassel Necklace-Pendant-Brooch, Tiffany & Co., early 20th century. Estimate $230,000 - $250,000. Photo Sotheby's.

Designed as an articulated tassel, the surmount modelled an open work cupola decorated with brilliant and old European-cut diamonds suspending a series of millegrain-set circular and scissor-cut diamonds surmounted by and terminating in millegrain-set oval diamonds, to a necklace designed as a V-shaped line of box-set old European-cut diamonds, the diamonds together weighing approximately 14.30 carats, mounted in platinum,circumference approximately 350mm, pendant approximately 78mm, necklace signed Tiffany, pendant/brooch detachable. 

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