From the runways to the jewel cases, color is in, and purple is the color of choice. This royal favorite—from pale violet to deep plum—complements the general love of all things luxe. The soft warmth of the color allows it to take on last year’s favorite—pink—by being feminine without seeming too girly. Fashion’s taste for purple, meanwhile, makes an easy transition to fine jewelry, as purple stones are both trendy and timeless.