A pair of 19th century natural pearl and diamond earrings. Photo Bonhams

Each collet-set old brilliant-cut diamond fleur-de-lys surmount, suspending three natural pearl drops with rose-cut diamond caps, diamonds approximately 2.45 carats total, length 3.2cm. Sold for £20,000

Accompanied by a certificate from The Gem & Pearl Laboratory stating that the pearls were found to be natural, saltwater. Report number 05300, dated 2nd March 2012.

Bonhams. Fine Jewellery, 25 Apr 2012. London, New Bond Street www.bonhams.com