The brass knuckles engagement ring says infinitely more than a regular old diamond ring. Not only will your fiancé clearly know that you love her, she’ll also know you have her best interest at heart. This elegant yet scrappy and unique ring is cast in sterling silver and carries a whopping 4 karats of prime cubic zirconium. Now, while not as rare or tough as diamonds and other gems, each 1 karat zirconium will still go a good job of bruising an attackers face beyond recognition. Available in various sizes, this one of a kind engagement ring overflows with class no fair lady will be able to resist.