From top: Buccellati one- of-a-kind 18k white gold and diamond necklace;
De Beers platinum and diamond bracelet; Jean Schlumberger for Tiffany &
Co. 18k yellow gold, platinum, and diamond brooch; Chanel Fine Jewelry
18k white gold, pearl, and diamond earring; Harry Winston platinum and
diamond bracelet; Kwiat platinum and diamond bracelet.
April 2013