3 Machine Cut Cubic Zirconia, Black and Silver Tone, Comfort fit, 8mm width, Size 8 to 13, Heavy Duty Tungsten Construction, Hypoallergenic and Durable. Includes Designer Gift Box and Free Shipping. Style SR9658 Brand: Oravo Design: Gemstone Style: Solitaire Resizable: No Adjustable: No Size/Dimensions: 10 Gift Box: Gift Box Material: Tungsten