It was listed by Gatsby Jewellery Ltd. Sold pieces stay on Sellingantiques as a record of what has passed through, and the next one is rarely far away.
Gatsby Jewellery Ltd has dated this piece to the 1900s.

Accompanied by an independent jewellery report.
Cut – Cushion shaped old mine cut.
Colour – Light brown.
Clarity – SI1.
Carat – The diamond is from the late 1800s. The mounting is modern.
Circa – 1930.
Size – O (UK) or 7 (US). Complimentary sizing is available, can be sized up or down.
Measurements – The diamond in the centre is approximately 5.6 by 5.3mm. Sits 5.1mm from the finger.
Metal – Stamped 18CT & PLAT – the shank is white gold, the diamond is in platinum – tested.
Gatsby Jewellery Ltd has dated this piece to the 1900s.
Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.
You can view the stock and full dealer information on the Gatsby Jewellery Ltd Profile Page