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.
Also note the sweeping, interlocking "U"s that hold the stones. Pure class.

Cut - Emerald cut emerald and trapeze cut diamonds.
Colour - Diamond are E.
Clarity - Diamonds are VVS; The emerald, like most emeralds, has natural inclusions.
Carat - Emerald is 1.50 carat. Each diamond is 0.45 carat; 0.90 carat total.

Circa - 1935.
Condition - Excellent.
Size - Currently L (UK) or 5 1/2 (US). Complementary sizing is available, can be sized up or down.
Measurements - From edge of diamond to edge of diamond measures 11.5mm. The setting is 7mm wide at the widest point and sits 7mm from the finger. The band measures 3mm.
Metal - Platinum. Stamped "P.900"
Video - To view a video of this ring in daylight, please copy/paste the following address into your browser: https://vimeo.com/103594107
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