An American sterling silver and 14ct gold two row cable and pink tourmaline ring, by David Yurman, An American sterling silver and 14ct gold two row cable and pink tourmaline ring, by David Yurman, with a row of three calibre cut pink tourmaline, channel set in gold bands. Signed and marked to the underside of the head, 858 925. Head 9.10mm, 5.16g. Finger size M Buying this gemstone ring at auction could save up to 0.42 tonnes of CO2e compared to buying new. Condition Report: Light surface marks commensurate with its age, tarnished.