It was listed by Gatsby Jewellery Ltd. Sold pieces stay on Sellingantiques as a record of what has passed through, and the next one is rarely far away.
Gatsby Jewellery Ltd has dated this piece to the 1920s.

On a fixed platinum chain.
Cut – Round cabochon opal and baguette cut diamonds.
Colour – Diamonds are F.
Clarity – Diamonds are VVS.
Carat – The opal is approximately 5.00 carat. Each of the twelve diamonds is estimated at 0.06 carat

Circa – 1925.
Condition – There are some scuffs on the opal near each of the claw. This are visible in the photos.
Measurements – The opal is 11.9mm is diameter. Including the diamonds, the pendant is 22mm in diameter. The chain is 17 inches.
Metal – Platinum. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1920s.
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