Sarah Jessica Parker and Cindy Chao collaborate

A handout photo of Cindy Chao and Sarah Jessica Parker. Courtesy Cindy Chao
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What do you get when a fashion darling collaborates with a contemporary fine jewellery artist? A one-of-a-kind “Ballerina Butterfly”.

The brooch, which will be auctioned at Sotheby’s Hong Kong Magnificent Jewels and Jadeite Sale on 7 October, was the result of Sarah Jessica Parker’s eye for delicate, tasteful pieces and Cindy Chao’s expertise with rare gemstones and fragile jewels.

Made of titanium and 18-carat gold, the brooch features a 26.27 carats cushion-cut fancy brown diamond, three rough brown diamond slices at 47.71 in total and three conch pearls weighing 7.25 carats in total, surrounded by 4,698 diamonds and fancy-colored diamonds weighing 98.09 carats in total.

The 2014 Black Label Masterpiece “Ballerina Butterfly” brooch was completed two years ago and has since been travelling through Asia and New York before returning to Hong Kong for the auction.