It was listed by Corvidae Antique. Sold pieces stay on Sellingantiques as a record of what has passed through, and the next one is rarely far away.
Corvidae Antique has dated this Viennese Ruby Paste Ring to the 1940s.

The ring is stamped 585 (14-carat gold) and I-S. Also bears the horsehead hallmark with a letter W which indicates the ring originates from Vienna in Austria.
The ring is in excellent vintage condition.
Size: M and a half (UK), approx 6.5 (US).
Weight: 3.1g.
Corvidae Antique has dated this Viennese Ruby Paste Ring to the 1940s.
Hand picked jewellery from a friendly family business
You can view the stock and full dealer information on the Corvidae Antique Profile Page