Gatsby Jewellery Ltd has dated this piece to the 1930s.

Cut – Round faceted sapphire and old mine cut diamonds.
Colour – Diamonds are G.
Clarity – All the gems are clean to the naked eye; VS2.
Carat – The sapphire is approximately 0.60 carat, with an total estimated 0.44 carat of diamonds.

Circa – 1930.
Measurements – The cluster is 10.9mm in diameter and sits 4.2mm from the finger.
Size – S (UK) or 9.25 (US). Complementary sizing is available, can go up or down in size.
Metal – 18k yellow gold. The gems are set in platinum. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1930s.
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