This is a cloche. Cloche means bell in French. I believe a cloche was originally referred to as a small glass dome used to force plants to bloom (like a mini green house). But in decor terms, it's usually a display (raised on a stand) under glass.
Ikea Hack: Turn A Boring Chair Into A Glam Piece // Today I want to share with you a cool and easy-to-make ikea hack. I will show how I gave a sophisticated and glamorous touch to a boring and simple chair.