MATEO Door Knockers 14-karat gold, malachite and diamond hoop earrings

Designed and handmade in Mateo's New York studio, these aptly-named earrings nod to the iconic door knockers found on the city's brownstone townhouses. They're set with sparkling pavé diamonds encircling marbled malachite hoops, which can be detached or interchanged for another adornment.