Synonyms of 'filigree'
Lace is a very delicate cloth which is made with a lot of holes in it. It is made by twisting together very fine threads of cotton to form patterns.
a plain white lace bedspread
A lattice is a pattern or structure made of strips of wood or another material which cross over each other diagonally leaving holes in between.
We were crawling along the narrow steel lattice of the bridge.
Thesaurus for filigree from the Collins English Thesaurus
The word filigree is used to refer to delicate ornamental designs made with gold or silver wire.