Gatsby Jewellery Ltd has dated this piece to the 1920s.
65 carat. The diamond is mounted in an eight claw coronet collet and is flanked by a pair of electric green natural emeralds. Crafted in 18k yellow gold. Currently UK size L or US size 5.5 (complimentary sizing available).

Accompanied by an independent jewellery report from IGR (#30310635).
Cut – Old European cut cut and round cut emerald.
Colour – The diamond is H.
Clarity – The diamond is SI1. The emeralds are loupe clean.

Carat – The diamond approximately 0.65 carat, with the emeralds weighing approximately 0.10 carat each.
Circa – 1920.
Size – L (UK) or 5.5 (US). Complimentary sizing is available, can go up or down.
Measurements – The diamond is approximately 5.5mm in diameter. From the edge of one outer emerald to the other is 12.2mm. The ring is 6.3mm at the widest point and sits 5.25mm from the finger.
Weight – 2.16 grams
Metal – 18k yellow gold. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1920s.
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