Pair of emerald and diamond ear clips, Cusi. Photo courtesy Sotheby's.

Each set with a triangular-shaped emerald, within a border of marquise- and pear-shaped diamonds,detachable clips, Italian assay and maker's marks. Estimate:  73,000 – 128,000 CHF

Accompanied by SSEF report no. 67768 stating the emeralds are of Colombian origin, with a moderate amount of oil in fissures. 

Sotheby's. Magnificent Jewels. Genève | 13 nov. 2013 - http://www.sothebys.com