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 - High domed cabochon and rose cut diamonds.
Colour - Diamonds are G colour.
Clarity - Some natural inclusions are visible in the untreated sapphires. Diamonds are SI.
Carat - Sapphire is approximately 4.00 carat. The total estimated diamond weight is 0.50 carat.

Circa - 1915.
Condition - Excellent.
Size - Currently S 1/2 (UK) or 9 3/4 (US). Complementary sizing is available, can be sized up or down.
Measurements - The setting is 14mm by 14mm and sits 10mm from the finger at the highest point.
Metal - 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