One famous ring with an unusual setting is Princess Diana’s sapphire engagement ring, especially because its large oval sapphire is surrounded by a halo of diamonds and mounted on a distinctive band. Its design differs from traditional single-diamond engagement rings and helped make the piece instantly recognizable. Rings with unique settings continue to inspire couples who want something personal. At Antiquecut, you can explore engagement rings under $2000 and find different settings, shapes, and styles suited to your preferences.