Gatsby Jewellery Ltd has dated this piece to the 1960s.
On a slim, knife-edge 18k white gold shank.

Accompanied by a Natural Diamond Grading Report from HRD Antwerp (#210000182424).
Cut – Old mine cut.
Colour – H.
Clarity – VS1.
Carat – 0.80.
Circa – 1960.
Size – K 1/2 (UK) or 5 3/8 (US). Complimentary sizing is available, can be sized up or down.
Measurements – The diamond is 5.58 x 6.45mm and sits 5.6mm from the finger.
Metal – 18k white gold and platinum.
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