6.5 mm Cubic Zirconia Hearts and Arrows Ideal Cut Round Solitaire Pendant in 10K Yellow Gold Cubic zirconia is the least expensive diamond look alike. The pendant has a round AA quality Cubic zirconia. Pendant comes with an 18 inch 10K gold chain. Chain included. Matching studs available. 30 Day No questions asked Return Policy Free-Shipping within US April Birthstone / Anniversary Gift