In jewellery, what name is given to a delicate, lace-like openwork made with wire threads of gold and silver?

Player #1106439, filigree is beautiful and I love jewelry made like this. it adds class to a simple design

Player #2293733, that's how it's spelt outside the US.

Player #1106439, Actually they didn't, it has dual spelling of which depends on geographical location and one's education.