Crystal Ti is a very special type of titanium where crystals are made to grow to a very large size. The ring gets anodized, and the orientation of the various crystals play the light in a manner similar to a hologram or dichroic glass. The crystals look 3 dimensional with a very unique look. The color will change as the angle of view is changed. These are rings that have to be seen in person to get the full effect. Being titanium, it is both hypoallergenic and nonmagnetic.