Jennifer Meyer's delicate thin ring is crafted of 18k gold bezel set with a black diamond. Round black diamond Polished 18k gold 1mm band width, 1mm face width (approximately) Made in U.S. For information about additional ring sizes, please contact our customer service representatives via email at webservices@barneys.com or by phone at 888.222.7639. Jennifer Meyer Women's Black Diamond Thin Ring - Black A great designer gift. Shop Jennifer Meyer at Barneys New York.