Gatsby Jewellery Ltd has dated this piece to the 1960s.
Each shoulder is set with a high white and internally clean baguette and trapezoid cut, leading to a slim, D-shaped shank.

Accompanied by an independent jewellery report from IGR (#30308742).
Cut – Round cabochon sapphire with baguette cut and trapezoid cut diamonds.
Colour – The diamonds are F to G.
Clarity – The diamonds are VS1.

Carat – The sapphire is approximately 11.00 carat with approximately 0.58 carat of diamonds.
Circa – 1965.
Size – S (UK) or 9 1/8 (US). Complimentary sizing is available, can be sized up or down.
Measurements – The sapphire is 12.6 x 12.2mm. Sits 7.9mm from the finger.
Metal – 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