L0t 135. An antique 12.816 carats Colombian emerald and diamond ring. Estimate £ 80,000 - 120,000 (€ 89,000 - 130,000). Sold for £ 236,750 (€ 266,820). © Bonhams 2001-2018

The cushion-shaped emerald, weighing 12.816 carats, framed by old brilliant-cut diamonds, the shoulders and gallery with further old brilliant-cut diamond highlights,ring size J½.

Accompanied by a report from SSEF stating that the emerald is of Colombian origin, with minor clarity modification (oil). Report number 99590, dated 23 April 2018.

Bonhams. FINE JEWELLERY, 26 Sep 2018, 14:00 BST - LONDON, NEW BOND STREET