Kay Jewelers Diamond Solitaire Ring 4 ct Round-cut 14K White Gold- Solitaires: It has been nearly a century since Marcel Tolkowsky revolutionized diamond cutting with the original Ideal Cut Diamond. This extraordinary solitaire ring for her is a splendid example. Featuring a stunning 4 carat Tolkowsky® round brilliant diamond set in a 14K white gold band and held in place by platinum prongs. All Tolkowsky® round diamonds are certified Ideal Cut with the Hearts & Arrows Pattern and each ring comes with a certificate of authenticity. The ring is presented in a unique presentation box. Available at select Kay Jewelers locations -- call 1-800-527-8029 for the store nearest you.