How much is old carnival glass worth?

Carnival glass is pressed glass with an iridescent surface, produced in large quantities in the early twentieth century by makers such as Fenton, Northwood, Imperial, Millersburg and Dugan. Much of it was inexpensive when new, and many common pieces still sell for modest amounts. A smaller number of rare pieces are prized by serious collectors.

What matters most is the maker, the pattern, the shape and the base color of the glass. Marigold is the most common color; pieces in less common base colors such as certain shades of blue, green, purple, red, ice blue or aqua opalescent are often more desirable. Scarce patterns and unusual shapes, along with strong, even iridescence, add value. Chips, cracks, worn iridescence and later reproductions all reduce it.

To learn the real value, identify the pattern and maker using a carnival glass reference, then hold the piece up to a strong light to see the base color through the glass. Compare it with sold results for the same pattern, shape and color. For a collection, an auction company that sells antique glass can help you find the few pieces that deserve separate attention.