Gatsby Jewellery Ltd has dated this piece to the 1940s.
The stone is secured in an white gold six claw collet, on a plain, polished, white gold shank which tapers at the shoulders.

Accompanied by a De Beers Institute of Diamonds grading report. A unique number has been inscribed on this diamond providing utmost security.
Cut:? Old European cut.
Colour:? J.
Clarity:? VS2.
Carat:? 0.66.
Circa:? 1940.
Size:? I(i) 1/2, US size 4.5. Free sizing available.
Measurements:? The diamond is 5.92 x 5.63mm and sits 5.65mm from the finger.
Weight:? 2.71 grams.
Metal:? 18k white gold. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1940s.
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