Gatsby Jewellery Ltd has dated this piece to the 1910s.
A truly special piece.

Accompanied by a report from Gemmological Certification Services (GCS) stating the sapphire shows no indication of heating.
Cut – Cushion cut sapphire with old cut diamonds.
Colour – The diamonds are F to G.

Clarity – The sapphire is eye clean. (The diamonds are VS2 to SI2; all are clean to the naked eye.)
Carat – The sapphire is approximately 1.80 carat, with a total approximate diamond weight of 2.30 carat.

Circa – 1910.
Size – M 1/2 (UK) or 6.25 (US). Complimentary sizing is available, can go up or down.
Measurements – The sapphire is approximately 8.4 x 7.5mm. The head of the ring is 15.9 x 13.4 and sits 6.9mm from the finger.
Metal – 18k gold and platinum. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1910s.
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