Gatsby Jewellery Ltd has dated this piece to the 1960s.
A further two diamonds are set in platinum atop the slightly knife edge 18k yellow gold shank. A beautiful, beautifully made treasure.

Accompanied by an independent jewellery report from IGR (#30310480).
Cut – Oval cut sapphire and round brilliant cut diamonds.
Colour – The diamonds are F to H.
Clarity – The sapphire is loupe clean. The diamonds are VS1 to VS2.

Carat – The sapphire is approximately 1.90 carat, with a total approximate diamond weight of 1.25 carat.
Circa – 1960.
Size – N 1/2 (UK) or 6.75 (US). Complimentary sizing is available, can go up or down.
Measurements – The sapphire is approximately 8.9 x 7.1mm. The head of the ring is approximately 16.25 x 13.5mm and sits 6mm from the finger.
Metal – 18k yellow gold and platinum. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1960s.
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