Gatsby Jewellery Ltd has dated this piece to the 1920s.
The stone is secured in a four claw setting surrounded by sixteen white and bright eight-cut diamonds, with ornamental detailing in the gallery. The fancy mount features unusual carved and pierced detailing

Accompanied by a sapphire report from The Gem & Pearl Laboratory stating the sapphire shows no indications of heating, and is Sri Lankan (Ceylon) in origin.
Cut – Cushion cut sapphire with eight-cut diamonds.

Colour – The diamonds are F to G.
Clarity – The sapphire is loupe clean. The diamonds are VS1 to VS2.
Carat – The sapphire is a known 2.67 carat. The total approximate diamond weight is 0.24 carat.
Circa – 1920.

Size – Q (UK) or 8 (US). Complimentary sizing is available, can go up or down.
Measurements – The sapphire is 8.8 x 6.1mm. The head of the ring is 14.8 x 12.2mm and sits 6mm from the finger.
Metal – 18k yellow gold. Tested.
Video – To view a video of this ring recorded in daylight, please copy / paste the following link into your browser: https://vimeo.com/847326990
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