Kay Jewelers Diamond Solitaire Ring 1/2 ct Princess-Cut 14K White Gold- Solitaires: It has been nearly a century since Marcel Tolkowsky revolutionized diamond cutting with the original Ideal Cut Diamond. This timeless ring features an independently certified 1/2 carat Tolkowsky® princess-cut diamond for stunning style. This fine jewelry solitaire ring is secured by platinum prongs and complemented by a band of 14K white gold. All Tolkowsky® princess-cut diamonds are certified Ideal Cut and each ring comes with a certificate of authenticity. The ring comes with a unique presentation box.