18kt-gold, platinum and enamel orchid brooch with pink and yellow diamonds (worn in hair), $36,800, by Bailey Banks & Biddle. White topaz, Keshi pearl and sterling-silver hairpins, $165 each, by Tacori. 18kt-white-gold, diamond and sapphire briolette earrings, $2,670; 18kt-white-gold, diamond, rubellite and tourmaline ring, $6,680, both by Parade. 18kt-gold, South Sea pearl, diamond and multicolored rondelle bracelet, $7,900, by Marya Dabrowski. On him: Striped poplin dress shirt, about $370, by Prada.