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 1910s.

Cut – Round cut sapphire with eight-cut diamonds.
Colour – The diamonds are G.
Clarity – The sapphire is clean to the naked eye. The diamonds are VS1 to VS2.
Carat – The sapphire is approximately 3.50 carat, with approximately 0.24 carat of diamonds.

Circa – 1910.
Size – P (UK) or 7.5 (US). Complimentary sizing is available, can go up or down.
Measurements – The sapphire is 7.4 x 7.1mm. The head of the ring is 18.4 x 18.3mm and sits 6.4mm from the finger.
Metal – 18k yellow gold and platinum. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1910s.
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