Van Cleef & Arpels Colombian Emerald and Diamond Ring, American, circa 1980

Van Cleef & Arpels Colombian Emerald and Diamond Ring, American, circa 1980 Van Cleef & Arpels Colombian emerald and diamond ring. Centrally set with one rectangular emerald-cut natural Colombian emerald with no colour enhancement and no clarity enhancement in an open back claw setting with an approximate weight of 3.22 carats, encircled with ten round…