In Scarlett Johansson’s world, all that glitters is, in fact, gold — er, an 18-karat gold necklace. To be specific, Johansson wore the twinkling Billie 18K Gold Tennis Necklace around her neck — and it costs less than $160. BaubleBar Billie Gold Tennis NecklaceBaublebarBaubleBar also has other bling that doesn’t cost a lot of cha-ching. Head to BaubleBar to score Scarlett Johansson’s Tennis necklace. BaubleBar Ruth Initial Tennis NecklaceBaublebarBaubleBar Amalie Bezel Tennis NecklaceBaublebarBaubleBar Jolie Tennis Necklace