Lot 599. An 6.06 carats Colombian Emerald and Diamond Ring, by Marina B. Estimate HK$ 850,000 - 1,200,000 (€100,000 - 140,000). Photo: Bonhams.
Accompanied by an AGL (American Gemological Laboratories) report stating that the natural emerald has no indications of clarity enhancement and originates from Colombia. Report number CS 1074518, dated 2 May 2016.