AgAu Jewellery has dated this piece to the Edwardian era.
Total diamond content is approx. 0.3ct, though maybe more as the diamonds are set deep raising the head of the ring approx. 5mm above the finger.
The ring is stamped for 18ct gold and platinum.
In very good condition, the ring is UK size M US 6.5 and weighs a heavy 5.2g
AgAu Jewellery has dated this piece to the Edwardian era.
Agau jewellery offer an extensive range of 9ct and 18ct gold jewellery.
You can view the stock and full dealer information on the AgAu Jewellery Profile Page