Covers Newsstand Saint Laurent by Anthony Vaccarello jacket, price upon request. Internal Givenchy dress, $5,990. 212-650-0180. Linda Farrow sunglasses, $645. lindafarrow.com. Gianvito Rossi booties, $995. gianvitorossi.com. Messika Paris by Gigi Hadid ring, price upon request. Saks Fifth Avenue; 877-551-7257. Editor’s Letter Page 20 Marc Jacobs top, $495; pants, $495; scarf, neckpiece, belt, and shoes, prices upon request. marcjacobs.com. Stephen Jones for Marc Jacobs hat, $450. marcjacobs.com. Welcome to the Issue Page 24 Balenciaga necklace, price upon request. Mastheads Pages 26–27 Panthère de Cartier ring, $21,400. 800-CARTIER. Pages 32–33 Cactus de Cartier rings, $15,400–$28,400. 800-CARTIER. Table of Contents Page 38 Prada shoe, price upon request. Must-Haves Page 58 Tod’s trench coat, price upon request. Page 62 Chloé dress, price upon request. Page 63 Verdura necklace, $34,500. Jacquie Aiche necklace, $16,250. Bulgari earrings, circa 1980, not for sale.…