Your designs will shine with unbelievable color when you use the Czech glass dark blue iris starburst round button. This button features an ornate design that looks almost like a snowflake cut into the surface. The glass displays a deep blue color that shimmers with a purple sheen thanks to the iris finish. Pair it with solid black shades to make the color stand out or use it with other shades of blue and purple. This button is perfect for using as an embellishment in jewelry designs or sewing projects.