A stomacher - sometimes called a devant de corsage - is a piece of jewellery worn on the centre panel of the bodice of a dress, which is itself also called a stomacher. In the 18th and 19th century, stomachers became large, eye-catching pieces of jewellery to be worn with formal court robes or ball gowns. Like the tiara, it was a jewel pre-eminently suited to expressing social status.