Auction introduction: This autumn, Christie’s presents Jewels Online from 4 September through 11 September. This online auction highlights a wide-ranging selection of diamonds and vibrant coloured gemstones, and includes designs by celebrated jewellery houses including Bulgari, Cartier, Gucci, Van Cleef & Arpels, and many more. With over 175 lots, spanning antique jewels to bold contemporary designs, this online auction is sure to excite collectors and enthusiasts. The auction will be open for browsing and bidding from 4 to 11 September, with an exhibition at Rockefeller Center from 4 to 9 September.