Program aims to educate young consumers about mined stones’ positive qualities.
Auction at Cornette de Saint Cyr will feature pieces from Cartier, Van Cleef & Arpels, Boucheron, and Chaumet.
Stellar stateside stones: Colored diamonds came out on top at the December sales, while sapphires continued to draw collectors’ interest.
Diamond pieces dominate London sale.
11.87-carat Burmese sapphire sells for more than three times its upper estimate.
Ring bearing 1.22-carat stone will lead upcoming New York Jewels sale.
Lab-grown diamonds, colored-stone prices and royal jewels feature in this week’s roundup.
London Jewels auction will also feature several single-owner collections.
Featuring emerald-cut, 13.84-carat diamond, the piece fetched $699,000 at New York auction.
Top item is Harry Winston diamond ring with high estimate of $900,000.
Signed jewels and period pieces dominate London auction.