“The Don” & "The Second Don" contain 100% real and authentic Megalodon fossil teeth. This is 100% real and guaranteed authentic – this is an extinct species of shark that lived approximately 23 to 2.6 million years ago, from the Early Miocene to the end of the Pliocene periods. While The Don features a Blue Jade Inlay & Blue Glow, The Second Don features Blue Opal & Nantan Meteorite. People’s jaws will drop when they see one of these rings!