I was so distracted by that insanely sparkly veil that i saw this gifset like 5x before i noticed her gown appears to be made of assuit!
assuit (also called tulle bi telle) is a unique fabric which originated in Egypt in the late 18th c. that combines a mesh bobbinet base fabric (usually cotton, but sometimes linen) with an ‘embroidered’ technique where very thin strips of metal are interwoven by hand into the mesh, folded back on themselves and and creased flat.
the metallic designs are, by nature of the technique, very geometric and the fabric (unsurprisingly) had a moment in the 1920s, and for early movie costumes for stories set in ancient Egypt.