This is our tension set birthstone ring. It has a 3mm diameter natural garnet, in a 3mm wide Titanium tension setting ring where just the strength of the Titanium holds the stone suspended, we can put any birthstone in this ring for you (please email for specific prices on other stones), and we'll also quote you a price on any real diamond that you want. This ring style is made to order, in our facility in western North Carolina, and typically ships in 5 business days. Thanks for looking at our products, and Please feel free to email or call us with any questions you may have.