These three half circles I made with a combination of opaque vibrant orange glass, deep green and a rippled blue and green piece of glass.
 
approximately 20.5cm wide x 37cm deep from the top of the top circle to the base of the bottom circle.
 
The wonderful thing about glass is the colour will change depending on the light source. Please note colour may vary slightly to the photo. The great thing is photos never do justice to how beautiful the coloured glass is in real life.