Designs such as this one are created by painting and layering different colored glass powders and enamels onto glass panels. The layered glass is melted in a kiln and usually requires multiple firings at different temperatures.  Color intensity changes as the sunlight filters through it. 
 

Ruby

SKU: 2004-02
$78.00Price
    • Glass Panel Size: 8 x4 in
    • Metal Stake Heights vary from 41-48" 
    • Cedar wood stand depth: 3.5" and adds approximately 1/2" to total height
    • Wood stand may have slight variances in grain and color from photo