WL MNG BY MANGO orange pleated dress ($135); MNG by Mango, Tysons Corner, McLean, Va., 703-506-2646. PRADA purple bag ($1,150); Saks Fifth Avenue, Tysons Galleria, McLean, Va., 703-761-0700. ADELER JEWELERS amethyst cabochon ring (16.57ct) ($1,600), yellow gold bangles (from $650 to $1,500), and briolette amethyst and diamond earrings (14.10ct amethyst and .66ct diamond) ($3,890); Adeler Jewelers, 772 Walker Rd., Great Falls,Va., 703-759-4076, www.adelerjewelerscom.