A Platinum, 18 Karat Gold, Emerald and Diamond Necklace, Bulgari, 1959

Estimate: 250,000 - 350,000 USD 

centering a flexible composition of 13 emerald drops weighing approximately 71.00 carats, further enhanced with 14 cabochon emeralds weighing approximately 41.00 carats accented by 14 marquise-shaped diamonds weighing approximately 8.50 carats, and set throughout with numerous round diamonds weighing approximately 50.00 carats, length 14½ inches, unsigned, French workshop and assay marks; with signed and fitted box.

The "Star of Light" Ruby ring by Wallace Chan. 

A Gorgeous diamond brooch with an estimated total diamond weight: 3.95 carats; mounted in platinum-topped eighteen karat gold; length: 2 1/4in.

Sapphire and diamond necklace, Van Cleef & Arpels

Designed as an alternating line of brilliant-cut diamonds and circular-cut and pear-shaped sapphires, suspending eleven graduated drops set with cabochon sapphires, highlighted with brilliant-cut diamonds within gold corded wire mounts, mounted in platinum and gold, length approximately 410mm, signed Van Cleef & Arpels and numbered, French assay and maker's marks, case.

Van Cleef and Arpels

 fine jewelry... Yellow Sapphire Emerald Gold Bombe Ring

COURANT MARIN BRACELET - White gold, round and princess-cut diamonds, gradation of round sapphires, lapis lazuli and one cabochon-cut white opal of 33.80 carats.

A natural pearl, Colombian emerald and diamond sautoir incorporating an historic 114.63 carat vivid yellow diamond which is currently the largest certified old cut cushion shaped fancy vivid yellow diamond known in the world. At Symbolic & Chase.