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 1920s.

Accompanied by an independent jewellery report.
Cut – The centre is a cushion shaped old mine cut. The surrounding stones are round, cushion and pear old mine cuts.
Colour – K in the centre, with G to K diamonds in the surround.

Clarity – SI1 in the centre. The surround stones are VS1 to SI2. All are clean to the naked eye.
Carat – The middle stone is approximately 1.10 carat, with an overall total carat weight of approximately 6.85.

Circa – 1925.
Size – I (UK) or 5 7/8 (US). Complementary sizing is available, can be sized up or down.
Measurements – The diamond is 8.25mm in diameter and sits 7.5mm from the finger.
Metal – Platinum. Tested.
com/189445404
Gatsby Jewellery Ltd has dated this piece to the 1920s.
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