Sorry to be so late to reply, I have the Sapphire Iridium Polarized and the 00 Red Iridium lenses for the Flak 2.0 XL. I also have a set of the Deep Water Prizm Polarized in my XX X-Metals. I would say that the Sapphire has a deeper blue than the DWPP with a little bit of Violet on the edges...