At the heart of the collection is an extraordinary Art Deco sapphire and diamond bracelet created by Cartier in 1927 – during what many consider the golden era for the prestigious jewellery house. The bracelet is adorned with a sensational Burmese sapphire weighing 47.07 carats, flanked by two stunning pear-shaped white diamonds weighing 9.27 and 8.60 carats respectively (estimate: $2-3 million / CHF 2-3 million).

The collection, which also includes Chinese works of Art to be auctioned at Sotheby’s New York during Asia Week, will be divided between Sotheby’s sale of Fine Jewels in New York on 25 September and the flagship auction of Magnificent Jewels and Noble Jewels in Geneva on 11 and 13 November. Highlights from the collection will go on view for the first time in New York and Los Angeles in September. This will be followed by an international tour with stops in Hong Kong, Singapore, Taipei, London and Geneva.

Speaking ahead of the sale, David Bennett, Worldwide Chairman of Sotheby’s Jewellery Division, commented, “This wonderful collection of jewels and gemstones was clearly assembled with both passion and joy, and we know that they were treasured and often worn by their owner. The Cartier Art Deco bracelet is stunning in its design; its central stone is a sensational ‘sugar loaf’ Burmese sapphire of the highest quality and colour. Timeless pieces such as these are sure to have global appeal.”

Describing the bracelet, Daniela Mascetti, European Chairman of Sotheby’s Jewellery Division, added, “The sapphire and diamond bracelet at the heart of the collection is a truly superb example of the art of Cartier. Its strong and powerful geometric design, somehow reminiscent of architectural solidity, is the perfect foil for the exceptional Burmese cabochon sapphire. The perfectly balanced design, coupled with superb gemstones and remarkable workmanship, makes this jewel a true masterpiece.”