A pink tourmaline 'Three rams' carving, 19th-20th century. Photo Christie's Image Ltd 2014.

The carving depicts three recumbent rams beneath a circular orb emerging from scrolling clouds, inscribed with the character ri meaning sun. The stone is of an attractive bright pink tone. 1 ? in. (4.2 cm.) long. Estimate £6,000 – £8,000 ($10,086 - $13,448)

Christie's. FINE CHINESE CERAMICS AND WORKS OF ART, 13 May 2014, London, King Street - http://www.christies.com/