Please note that these are a custom order process as magnification AND crystal color choices.  Recently note that an mail accessory catalog was retailing these readers  WITHOUT crystals for $30.00!  Check out the drop down menu for choosing a crystal color that you would like to be applied to your reader glasses!  AB (Aurora Boralis) crystals change colors with the light. The plain colors are just as dramatic but in a singular way.  Both are Swarovski crystals!