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 1950s.

Cut - Cabochon opal and brilliant round diamonds.
Colour - The diamonds are I colour.
Clarity - The diamonds are VS.
Carat - The opal is estimated at 2.50 carat. The ten diamonds are approximately 0.10 each, so approximately one carat total.

Circa - 1960.
Condition - The lightest of surface scratches, easily polished out - by us if you'd like.
Size - Current ring size is M (UK) or 6 (US). Complementary sizing is available, ring can go up or down in size.
Measurements - Top of the ring is 16mm by 14mm. The band is 2.5mm.
Metal - Stamped "18ct". White Gold.
Gatsby Jewellery Ltd has dated this piece to the 1950s.
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