With a plunging V-neckline and eye-catching crystals, this off white silk charmeuse gown demands to be out all evening, $3,465, by Stephen Yearick, stephenyearick.com. Spotlight your style with this self-illuminating, hand-carved Lucite bag, $3,600, by Joyce Francis exclusively for Blue Tree, 212-369-2583. Lucite bracelet, $175, from This 'n' That Collectables, 212-255-0727. Makeup by William Murphy at luxe. Neon lights by Manhattan Neon.