Kay Jewelers Diamond Engagement Ring 5/8 ct tw Princess-cut 14K White Gold- Bridal: It has been nearly a century since Marcel Tolkowsky revolutionized diamond cutting with the original Ideal Cut Diamond. The tradition continues with the Tolkowsky® modern Princess Ideal Cut Diamond. To beautifully complement the Tolkowsky® diamond, round diamonds grace either side of the center and twist along the 14K white gold band. This fine jewelry diamond engagement ring has a total diamond weight of 5/8 carat. Each Tolkowsky® diamond ring comes with a certificate of authenticity and independent certification of the center stone. Available at select Kay Jewelers locations -- call 1-800-527-8029 for the store nearest you.