Gatsby Jewellery Ltd has dated this piece to the 1930s.
Undeniably wonderful!

Accompanied by an independent jewellery report from IGR (#30306724).
Cut – Old mine cut in the centre. The surrounding diamonds are old mine cuts and eight-cuts.
Colour – The centre stone is J. The surrounding diamonds are G to I.

Clarity – VS2 in the centre. The surrounding diamonds are VS1 to SI1; all the stones are clean to the naked eye.
Carat – A known 1.76 carat in the centre, with a further approximate 0.22 carat of diamonds in the surround. The total estimated sapphire weight is 0.33 carat.

Circa – 1920.
Size – M (UK) or 6 (US). Complimentary sizing is available, can go up or down.
Measurements – The diamond is approximately 7.3mm in diameter. The ring is 14.7mm at the widest point and sits 7mm 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/400341330
Gatsby Jewellery Ltd has dated this piece to the 1930s.
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