The Mesmera rhinestones feature a new Color Shift Technology. Developed by Preciosa with the Czech Academy of Science the stones contain a rare mineral that causes the color shift. As a result, like a mood ring, the stones change colors under different light conditions. The color changes from purple, to green, to pale blue. See the photo.
Preciosa VIVA Stones feature a precision 12 facet cut. Their table (top) is large creating extra light reflection. They feature a silver foil flat back for extra reflection.
This Stone Color changes under different light conditions.
Preciosa Crystal Flat Back Rhinestones are available in sizes SS10 up to SS40 VIVA 12 style. They can be glued to various materials such as fabrics, wood, metal and plastic. They are used in many industries for costumes, dance, dancesport, skating, equestrian, show clothes, and crafts. The can also be applied to fabrics with rim or tiffany settings / mounts.