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 1800s.

Cut - Old mine / miner cut diamond and rose cut diamonds
Colour - H.
Clarity - The large drop diamond is VS1. The others range from VS2 to SI1, but all are clean to the naked eye.
Carat - The large diamond is approximately 0.50 carat. The remaining diamonds add up to an estimated 0.80 carat, so a total approximate weight of 1.30 carat

Circa - 1810.
Condition - Excellent.
Measurements - From top to bottom, including the drop, is 52mm. 23mm wide. Chain, which is not original to the piece, is 16".
Metal - The chain is fully hallmarked 18k gold. The chain linking the brooch drop diamond is 18ct gold. All the diamonds are set in silver.
Gatsby Jewellery Ltd has dated this piece to the 1800s.
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