The BRIGHT MOSAIC line features dichroic glass: it is the reason these earrings are so shiny bright and cute. A coating of metals is encapsulated between the two glass layers, with interesting reflective properties. Depending on the angle from which you look at them, the color shifts and changes. Some of these designs are single-color, and these shift only in the intensity of their color. Others are two-color, and will shift from red to silver, for example, or from blue to green.

The post backs are sterling silver and come with sterling silver ear-backs. They are glued to the glass by Edo with a industrial-strength UV glue and quality tested to ensure the bond is good. 

Small: 0.25" diameter; 6mm
Medium: 0.4" diameter; 10mm
Large: 0.5" diameter; 12mm

(note: colors change depending on angle and these photos may not fully represent each angle. Also, these are made in small batches from a pattern sheet, and as such, the pattern varies from one pair of earrings to the next)