An emerald and diamond ring. photo Bonhams

centering a rectangular-cut emerald with triangular-cut diamond shoulders and a plain mount; emerald weighing approximately: 4.50 carats; estimated total diamond weight: 1.60 carats; mounted in platinum; size 5 3/4 (with sizing band).. Sold for $29,280

Accompanied by GIA report #5121721390, dated October 29, 2010, stating the emerald as: Zambian origin, no indications of clarity enhancement.

An emerald and diamond ring. photo Bonhams

centering a square-cut emerald within a round brilliant-cut diamond surround and diamond-set bifurcated shoulders; emerald weighing approximately: 11.00 carats; estimated total diamond weight: 1.25 carats; mounted in eighteen karat bicolor gold; size 5 1/4. Sold for $16,470

Two emerald and diamond pendants. photo Bonhams

each designed as a pear-shaped emerald within a round brilliant-cut diamond surround and further radiating baguette-cut diamond border, suspended from a round brilliant-cut diamond two-stone line; estimated total diamond weight: 5.00 carats; mounted in platinum; length: 1 1/8in. (earring fittings deficient). Sold for $12,200

An emerald and diamond ring. photo Bonhams