Why are some colors of glass more rare then others when they’re basically the same color as other glass?

Home Frequently Asked Questions (FAQ) Glass Why are some colors of glass more rare then others....

This all comes down to what company makes it.   While some, colors may look the same, they are very different.

It also comes down to if they start with cullet (clear glass).  Some start with sand.  Some use electric heaters and some use gas.  This all comes down to cost.