Box set with rhodium-plated rings with Swarovski® crystals. Ring with small dark blue Swarovski® crystal. Ring with large light blue Swarovski® crystal. Diameter of small crystal: 6.5 mm. / 0.26 in. Diameter of large crystal: 8.5 mm. / 0.33 in. Internal diameter of size 54: 17 mm. / 0.67 in. Internal diameter of size 56: 18 mm. / 0.71 in.