Maylene: 0.5ct Brilliant cut Russian Ice on Fire CZ Promise Friendship Ring 316 Steel, 3064 Features a 5mm, 0.50 carat Brilliant cut Russian Ice on Fire CZ gemstone Solitaire. An elegant, beautiful and contemporary selection as a promise, friendship or commitment ring! Made with solid 316 Surgical Stainless Steel so it's safe for virtually anyone to wear!