This Apostolo ring is made with oxidized sterling silver, highly textured, and highlighted with one natural round diamond (0.015 CTW) set in an 18k gold bezel.? A less textured silver part at the bottom of the shank makes it easier to resize. The half-round shape at approximately 3.2 mm wide and 2.2 mm in thickness.?Combine with other rings to create your stacking style.