A yellow gold and diamond ring and earring suite, by Andrew Grima, 1970. Photo: Bonhams.

The ring and "night and day" earclips designed as stylised piles of logs, of varying heights with bark detail and brilliant-cut diamond highlights, each signed Grima, ring with workshop mark HJCo and London hallmark, earrings with detachable pendants, ring size I, earring length 6.0cm. Estimate £3,000 - 4,000 (€3,600 - 4,900)

Bonhams. FINE JEWELLERY. London, New Bond Street, 30 Apr 2014 - www.bonhams.com