Gatsby Jewellery Ltd has dated this piece to the 1950s.
The centre is rubover set in white gold and surrounded by 16 rose cut natural diamonds. The beautifully crafted basket work leads to a slender 18k white gold shank. Currently UK size K 1/2, US size 5 3/8 (complimentary sizing available).

Accompanied by an independent jewellery report from IGR (#30310651).
Cut – Oval cabochon opal and rose cut diamonds.
Colour – The diamonds range from H to K.
Clarity – The diamonds range from SI1 to I1.
Carat – The opal is approximately 1.80 carat, with a total approximate diamond weight of 0.47 carat.

Circa – 1950.
Size – K 1/2 (UK) or 5 3/8 (US). Complimentary sizing is available, can go up or down.
Measurements – The head of the ring is 17.6 x 14.7mm and sits 6mm from the finger.
Weight – 3.49 grams.
Provenance – French.
Metal – 18k white gold. Tested.
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