A jadeite jade necklace. Photo courtesy Bonhams.

comprising thirty-seven graduated jadeite jade beads, measuring approximately 16.7 to 12.1mm., completed by a ball clasp detailed with intermittent round brilliant-cut diamonds; clasp mounted in fourteen karat gold; length: 24 3/4in.. Estimate US$ 40,000 - 60,000 (€29,000 - 43,000). Amended.

Accompanied by GIA report #2135078521, dated February 9, 2011, stating the one bead randomly selected for testing was found as: natural color, no indications of impregnation.

Bonhams. Fine Jewellery New York. 15 Oct 2012 - www.bonhams.com