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.
Beautiful Turquoise Vanity _ Dreaming Of Spendy Vintage Vanities? - Create your own DIY vanity with these tips Put a twist on the traditional vanity by choosing a bright color scheme, & go bold with it!