For the unforgettable moments in your life, celebrate with an expression of your love: a celebration diamondâ® solitaire engagement ring. With unsurpassed brilliance, our exclusive diamond captures light within 102 precisely-cut facets. The straightforward beauty of this 1 ct. Round solitaire diamond is cradled in an 18k white gold cathedral mounting with a platinum head. Every celebration diamondâ® received excellent rankings for superior cut and color. Due to the nature of pre-owned jewelry, the ring you choose may have been previously sized. Ring styles from our pre-owned jewelry inventory are sold at their current size and cannot be resized at purchase. As this inventory constantly changes, we are unable to state or guarantee the size of any pre-owned ring.