What factors impact the cost of back-lighted glass?
Besides the cost of the art glass itself, there must be some steel framework welded to hold the glass, some case work for appearance, some light diffuser material ($5/sq-ft) and electrical parts and installation. If the glass is in a area where vulnerable to touching, a piece of clear safety glass is recommended to protect the art glass. In general the size of the area is the prime factor, followed by the installation costs, which will vary by the location selected. (Sometimes an enclosure must be sheet-rocked).