Square Cushion Cut Blue-Gray Moissanite Loose StoneThese loose square cushion shape blue gray Moissanite gemstones are available for a custom built ring by Nodeform Jewelry. Select your stone size and type, then select a ring setting that fits the shape and size of the selected stone. Add both to your cart and we'll create your ring! Blue Gray Moissanite Specs: Sizes: 6x6 mm 1. 0ct, 7x7 mm 1. 8ct, 8x8 mm 2. 45ct Treatment: Lab Created Color: grayish blue Quality: eye clean; excellent brilliance; good