An Art Deco diamond bracelet, by Bulgari. Photo Christie's Image Ltd 2013

Designed as a wide mesh band of alternated circular-cut diamonds and rectangular-shaped diamond-set links, enhanced by three pavé-set diamond bombé spacers, centering upon two cushion-shaped and one circular-cut diamonds, mounted in platinum, late 1930s, 19.4 cm. Signed Bulgari. Estimate:  $161,831 – $269,718

Note: This bracelet was a present from Prince Alessandro Torlonia to his wife Beatriz of Borbon y Battenberg.

Christie's. MAGNIFICENT JEWELS. 15 May 2013. Geneva. www.christies.com