Peacock Prisms Eyeglass / Sunglass Necklace. Faceted round and teardrop shaped crystals have blue, green, and purple flashes of color with a prismatic effect on this dark and lovely glasses chain. Antiqued silver spacers and rectangular beads add drama and certainly not your regular peacock design! Adjustable stretch ends will fit most any frames on the 28.5 inch long sunglass / eyeglass necklace.