Pair of Colombian emerald, ruby and diamond earrings, Bulgari. Estimate 78,000 — 138,000 CHF (73,585 - 130,189 EUR). Photo Sotheby's.

Each suspending a pear-shaped emerald weighing 5.39 and 6.93 carats, from a line of calibré-cut cabochon rubies, accented with a brilliant-cut and two pear-shaped diamonds, each signed Bulgari, numbered, Italian assay and maker's marks, post and hinged back fittings.

Accompanied by SSEF report no. 79578, stating that the emeralds are of Colombian origin, with a moderate amount of artificial resin in fissures.

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 12 mai 2015, 10:30 AM