You are looking at our modern style twisted shank diamond halo enagement ring, shown with a 0.50 carat round diamond. This diamond halo engagement ring comes with 0.42 carats of round diamonds, set u-prong style. 1-800 Loose Diamonds offers a dynamic check out system. Customers have the option to customize their rings and check-out with a variety of options. Customers can select their ring size, metal purity type, diamond color/clarity, and ring color. Customers can also add any shape of a center diamond to their ring order and have it mounted free of cost! We also offer an engraving system during the checkout process. Simply choose the type of font you would like, and enter your message (character length may vary).