Gatsby Jewellery Ltd has dated this piece to the 1950s.
The centre stone is secured in a four claw platinum collet with six (three each side) channel-set round brilliant cut diamonds of reverse graduating size, leading to a slender platinum shank. A solitaire ring that truly stands apart.

Accompanied by a pink sapphire report from The Gem & Pearl Laboratory stating the sapphire shows no indication of heating, and is Burmese (Myanmar) in origin.
Cut – Cushion cut sapphire and round brilliant cut diamonds

Colour – The diamonds are F to G.
Clarity – The sapphire is eye-clean. The diamonds are VS1 to VS2; all are clean to the naked eye.
Carat – The sapphire is 1.10 carat. The total approximate diamond weight is 0.10 carat.
Circa – 1950.
Size – K (UK) or 5 1/8 (US). Complimentary sizing is available, can go up or down.
Measurements – The sapphire is 6.1 x 5.6mm and sits 4.8mm from the finger.
Metal – Platinum. Tested.
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