How can I tell if my glass is Lalique?

Lalique glass can be identified through careful examination of the marks and researching the marks used in the year the glass was made. There are also long-wave black light tests that can be used to verify that the glass is crafted from the known correct materials. Having a professional authenticate a piece is the most reliable way to be sure. Shop a variety of properly vetted Lalique glass pieces from top sellers on 1stDibs.