This hand cut etched Halo Engagement Ring has a total diamond carat weight of .59ct. The setting will hold a round cut center stone approximately 1.00ct. Made for Diamonna by Gabriel & Co NY, chosen by retailers as the #1 brand and we are thrilled to partner with them. CENTER STONE NOT INCLUDED. Add a cushion DIAMONNA gem to your order and we will assemble it completely for no added fee. Save the Earth, and save money by choosing DIAMONNA™, the Brilliant Diamond Alternative™ *Customizations to accommodate different size center stone may be possible; contact DIAMONNA for options.