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 1960s.

Cut – Round brilliants.
Colour – G.
Clarity – VS1 to VS2.
Carat – Approximately 0.22.
Circa – 1965.
Size – N (UK) or 6.5 (US).
Measurements – 2.3mm at the widest point.
Metal – Platinum. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1960s.
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