Gatsby Jewellery Ltd has dated this piece to the 1920s.
Arresting, unique and very, very beautiful.

Cut – Old European cut in the centre with eight cut diamonds in the surround and triangle sapphires.
Colour – H.
Clarity – SI1; the diamond is clean to the naked eye.
Carat – The central diamond is approximately 0.90 carat, with a further estimated 0.12 carat of diamonds in the shoulders. Total estimated sapphire weight is 0.70 carat

Circa – 1920.
Size – L 1/2 (UK) or 5 7/8 (US). Complementary sizing is available, can be sized up or down.
Measurements – The diamond is 5.9mm in diameter and sits 4.1mm from the finger.
Metal – 18k gold. The stones are set in 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