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 1940s.
Crowned with a very fine oval shaped old cut diamond that looks much larger than it's 1.56 carat. Big, blingy and beautiful.

French hallmarks.
Cut - Oval shaped old mine / miner cut in the centre and single cut diamond in the mount.
Colour - All the diamonds are a matching G; very high white.
Clarity - The main stone is SI1 (but totally clean and clear to the naked eye). The stones in the mount are all VS.

Carat - The centre stone is 1.56 carat - this is engraved inside the band. The approximate combined weight of the mount is 1.00 carat, so an overall estimated weight of over 2.50 carat.
Circa - 1940.
Condition - Excellent.

Size - Currently L (UK) or 5 1/2 (US). Complementary resizing is available, can go up or down.
Measurements - The setting measures 13mm by 14.4mm and sits 8.5mm from the finger.
Metal - 18k gold and platinum. Fully hallmarked.
Gatsby Jewellery Ltd has dated this piece to the 1940s.
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