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 1950s.

French hallmarks.
Cut – The sapphire is a oval mixed cut with rose cut diamonds.
Colour – The diamonds are H.
Clarity – The sapphire is eye clean. The diamonds are VS.
Carat – Each diamond is approximately 0.35 carat.
Circa – 1950.
Measurements – The necklace is 18 inches long. The pearls range from 5mm to 9.2mm.
Metal – The clasp is 18k white gold. French hallmarks.
Gatsby Jewellery Ltd has dated this piece to the 1950s.
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