How can you tell if Fenton glass is real?

To tell if Fenton glass is real, examine its details carefully. Pieces made during the 1960s and earlier will have a ring of fire effect when viewed in natural lighting. To check for this, hold your glassware in the sunlight and look for a halo of shimmering green, red and blue colors, which occur due to the presence of iridized salts in the glass. For newer pieces, look for the raised maker's mark in the glass. It will usually appear as the word Fenton or the letter F situated inside an oval. If you need assistance authenticating your piece, have a certified appraiser or experienced dealer evaluate it. On 1stDibs, explore a selection of Fenton glass.