Katharine McPhee is wearing the Ziamond Cubic Zirconia CZ Valentina Solitaire! Capture the love of your life with a 7 carat heart shaped center highlighted by a row of delicate prong set rounds. Additional rounds are set halfway down both sides of the shank. This ring features approximately 8 carats in total carat weight. All Ziamond cubic zirconia cz jewelry is set in 14k gold, 18k gold or platinum.