$ 0 0 Ruby cameo ring, early 19th Century - Sotheby's. Centring on an oval ruby cameo carved to depict the winged profile of Medusa, to a plain fluted gold mount, size M. Estimate: 4,500 - 5,500 GBPSotheby's. Jewels. London | 11 Apr 2013 www.sothebys.com