Non-Plated (silver tone) Stainless Steel with Lapis (blue): 1.5" IP Yellow Gold-Plated Stainless Steel with Rhodoite (red): 1.5" Gold-Plated Stainless Steel with Green Jasper (green): 2.5" Non-Plated (silver tone) Stainless Steel with Green Jasper (green): 2.5"