This beautiful carnival glass dish is a rare color and pattern from the early 1900s.  The pattern is called Peacock Tail, and it appears both amethyst and marigold in color, but is categorized as violet.  It has a ribbed interior and a sawtooth edge in ribbon pattern.  It measures 7.25 inches across and is approximately 2 inches high.  You're welcome to contact me with any questions, thanks for your interest.