This Apostolos ring is made with oxidized sterling silver, highly textured, and highlighted with 18K Gold and one natural round ruby (0.015CTW) set on top of the band in an 18k gold bezel.? A bright silver part at the bottom of the shank makes it easier to resize. The half-round shape at approximately 3.3 mm wide and 2.3 mm in thickness.?Combine with other rings to create your stacking style.