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.

Cut – Old mine / miner cuts.
Colour – I.
Clarity – The central diamond is I1, the outer two diamonds are VS1..
Carat – Approximately 0.50 carat in the centre, with a pair of 0.25 carat diamonds either side.

Circa – 1915.
Size – O 1/2 (UK) or 7.25 (US). Complementary resizing is available, can go up or down.
Measurements – From one edge of the diamond to the other is 13.9mm and 5.2mm wide. Sits 4.1mm from the finger.
Metal – 18k gold and platinum. Tested.
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