These carbon-titanium rings are available as standard in three widths (4, 5, and 7 mm) with cubic zirconia. The image shows the medium and wide rings. The narrowest 4 mm version features a 1.5 mm stone. The medium 5 mm version has a 2 mm stone, and the 7 mm version has a 3 mm stone. Custom orders are also available in other widths, with brilliant-cut diamonds, and in various gold alloys. The 4 mm ring has a band thickness of 2.1 mm. The 5 mm ring has a thickness of 2.2 mm, and the 7 mm ring has a thickness of 2.3 mm. The rings are available in inner circumferences from 50 to 70 mm. Larger or smaller rings are available as custom orders. Don't know your ring size? No problem: Upon request, I will send you a ring sizer after receiving your payment, which you can keep (free of charge within Germany - for international shipments, the shipping fee for the ring sizer will be deducted if you subsequently exchange the ring). Furthermore, you have the opportunity to try on the chosen piece during the return period. This way, you can easily return the ring if it doesn't fit perfectly. I will then send you the same piece in the correct ring size as quickly as possible (free of charge within Germany if you subsequently purchase the ring).