Truly BREATHTAKINGLY beautiful lamp shade in the Art Nouveau style that features iridescent finish that reflects lights the way a pearl does. "Crackle" creates the feelings embedded into this piece of art while the rim is textured. With a diameter of 12 inches, Height of 6.5 inches, this is ideal shade for a lamp or a pendant light. The center hole is 5/8". It is signed by the artist but rather difficult to recognize the name.