18-karat yellow gold, Gemfields Zambian Emeralds and diamond ring House of Meraki's 'Nyra' ring is a 'Toi et Moi' style, where two different stones are nestled together to symbolize love and partnership. Cast from 18-karat gold, the open band is set with a cluster of brilliant-cut diamonds opposite a vivid Zambian emerald. It would make such a romantic anniversary gift.