A ruby and diamond bangle. Photo Christie's Image Ltd 2014

Centering upon a bombé panel of four rows of oval-shaped rubies, to the pavé-set diamond scrolling shoulders with baguette-cut diamond detail and hinged tapered band, 1930s, inner diameter 7.0 cm, with French assay marks for platinum and gold. Estimate CHF20,000 – CHF30,000 ($22,948 - $34,422)

FROM THE ESTATE OF BARONESS GUNHILD THYSSEN-BORNEMISZA DE KASZON

Christie's. GENEVA MAGNIFICENT JEWELS. 14 May 2014, Geneva -http://www.christies.com