Circa 1960s A vintage platinum ring is centered with an impressive emerald cut natural emerald measuring 11.45 x 9.10 x 6.40 mm, approximately 4.62 ct, framed by round and emerald cut sparkling bright white diamonds (G-H color, average clarity VS1-VS2). Estimated total diamond weight 2.32 ct. Ring size 8 (18 mm) sizable