A ruby, sapphire and diamond butterfly brooch. photo Bonhams

Each wing, pavé-set with circular-cut sapphires, pink sapphires and rubies, with brilliant-cut diamond highlights, to a similarly cut diamond set body and antennae, with cabochon ruby eyes, diamonds approx. 1.60ct. total, width 7.0cm. Estimate: £2,000 - 2,500 - Unsold

Bonhams. Jewellery, 10 Mar 2010. Knightsbridge www.bonhams.com