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 1930s.
All three stones are simply set in platinum on a 18k white gold band; when you have stones like this, you don't want or need anything more elaborate. Beautifully balanced and totally breathtaking.

Cut - Old mine / miner cut diamond. Round cut sapphires
Colour - Diamond is F. Sapphire is cornflower blue.
Clarity - The diamond is SI2; inclusions can't be seen with the naked eye.
Carat - The diamond is 1.05. Each sapphire is 0.50 carat, 1.00 total

Circa - 1935.
Condition - Excellent.
Size - Currently I 1/2 (UK) or 4 1/2 (US). Complementary sizing is available, can be sized up or down.
Measurements - From the outer edge of one sapphire to the other is 17.5mm. Ring is 7.3mm at the widest point and sits 5.5mm from the finger.

Metal - The band is 18k (white) gold. The stones are set in platinum. Stamped.
Video - To view a video of this ring in natural light, please copy/paste the following address into your browser: https://vimeo.com/103719288
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