18-karat yellow gold, Gemfields Zambian Emeralds and diamond hoop earrings Gemfields Zambian Emeralds are the starting point of all of House of Meraki's designs - founder Gargi Rathi always displays them in such beautiful ways. Strung with pear-cut versions of the vibrant stone, these earrings are handmade from 18-karat gold and set with a row of sparkling diamonds to illuminate the hoop shape.