Gatsby Jewellery Ltd has dated this piece to the 1960s.
The old mine cut diamonds surround the centre a claw set with in a platinum wired gallery, leading to a slim 18k white gold shank.

Accompanied by an independent jewellery report from IGR (#30308930).
Cut – Round brilliant in the centre, old mine cuts in the surround.
Colour – H in the centre. The surrounding stones are G to J.
Clarity – I1 in the centre. The surround stone are VS2 to SI1.

Carat – A known 1.06 carat in the centre, with a further approximate 1.00 carat in the surround.
Circa – 1960.
Size – M (UK) or 6 (US). Complimentary sizing is available, can be sized up or down.
Measurements – The diamond is approximately 6.25mm in diameter. The head of the ring is 13.75 x 14.75mm. Sits 8mm from the finger.
Metal – 18k white gold and platinum. French hallmarks.
Video – To view a video of this ring recorded in daylight, please copy / paste the following link into your browser: https://vimeo.com/420273971
Gatsby Jewellery Ltd has dated this piece to the 1960s.
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