We wrapped cover model Alejandra Mancia in chunky wool, rich cashmere, and cozy cable-knits for our November cover shoot. What better way to set off her cool silver jewels? From fashionably oversized drop earrings to bib necklaces worthy of an haute holiday party, the baubles that adorned our pretty poster child reminded us of tinsel, which got us thinking about the holidays. Best wishes for the smoothest, most successful season ever! Photographs by Greg Sorensen. Styling by Brooke Magnaghi. Market editor: Jennifer Heebner; makeup by Rebecca Casciano for LVA Artists; hair by Gusléne Bubak; manicure by Joi Offutt. Spark earrings in silver with diamonds, $340, Mabel Chong, San Francisco, 415-885-0198, mabelchong.com; Balance bands in silver with rubies and emeralds, $660 each, Balance ring in silver with rubies, $720, Clarity square rings in silver, $220 each, Strength ring in s