Lot 556. An Impressive 27.03 carats Colombian Sugar-loaf Cabochon Emerald and Diamond Ring. Estimate HK$ 950,000 - 1,200,000 (€100,000 - 130,000). Photo: Bonhams.
Accompanied by a GRS report stating that the natural emerald is vivid green colour, has minor indications of clarity enhancement and originates from Colombia. Report number GRS2015-098386, dated 15 September 2015.