A diamond and emerald cocktail ring 18k white gold ring cluster set with an octagonal step-cut Colombian emerald (ca. 6.0 ct, 11.95 x 10.85 x 7.25 mm, fine colour) surrounded by 16 brilliant-cut diamonds (in total ca. 2.86 ct, G/H, vvs). Certificate Gemstone-Report no. 031661 by the DSEF, Idar-Oberstein from 15.04.2021 confirms the stone to be a natural emerald with indications of minor clarity enhancement. Origin: Colombia. Tested insofar as mounting permits. Bezel 2.1 x 1.6 cm. Ring size 53. Weight 8.85 ct. Minor wear to the girdle of the emerald. Provenance Private collection north rhine westphalia. Juwelier Binder, Zurich 1960s.