Gatsby Jewellery Ltd has dated this piece to the 1950s.
The sapphire is secured by four split claws within a surround that perfectly follows the shape of the stone, and is set with 24 four white and bright eight-cut diamonds. ‘V’ and ‘O’ detailing in the gallery leads to a slim, platinum shank.

Accompanied by a sapphire report from Gemmological Certification Services (GCS) stating the sapphire shows no indication of heating, and is Sri Lankan (Ceylon) in origin.
Cut – Cushion cut sapphire. The diamonds are eight-cuts

Colour – The diamonds are G to H.
Clarity – The sapphire is loupe clean. (The diamonds are VS1 to VS2.)
Carat – The sapphire is 4.83 carat (with a total approximate diamond weight of 0.24 carat.)
Circa – 1955.

Size – M 1/2 (UK) or 6.25 (US). Complimentary sizing is available, can go up or down.
Measurements – The sapphire is 11.93 x 6.91mm. The head of the ring is 14.8 x 9.9mm and sits 6.6mm from the finger.
Metal – Platinum. Tested.
Video - To view a video of this ring recorded in daylight, please copy / paste the following link into your browser: https://vimeo.com/837579677
Gatsby Jewellery Ltd has dated this piece to the 1950s.
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