Gatsby Jewellery Ltd has dated this piece to the 1920s.
The stone is secured in an eight-claw 18k yellow gold collet with subtle hoop detailing in the gallery, leading to a slim 18k yellow gold shank.

Accompanied by a GIA Natural Diamond Report.
Cut: Old European.
Colour: G.
Clarity: SI1.
Carat: 0.90.
Circa: 1920.
Size: M (UK) or 6 (US). Free sizing available.
Measurements: The diamond is 6.00 x 6.06mm and sits 6.3mm from the finger.

Weight: 2.55 grams.
Metal: 18k gold. Tested with a Niton DXL Precious Metal Analyzer.
Video: To view videos of this ring, please either contact us or copy / paste the following link into your browser: https://gatsbyjewellery.co.uk/products/art-deco-0-90-carat-old-cut-diamond-engagement-ring-circa-1921
Item # 1112214S432
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