Amber glass dishes. Amber glass is made by using different mixtures of sulfur and iron oxide; the color can vary from pale yellow to ruby amber. Reference: The Free Dictionary
Roman amber glass vessels have been found showing that this technique has been a round for centuries. It was also a popular color for glass during the Art Deco era and prices can vary from very low to high. The price can fluctuate depending on the design, quality and maker or whether it is cut glass, blown glass or pressed glass.
Below is an example and price guide of an Art Deco amber glass dish with stylised sea nymphs swimming in swirls of bubbles.