Buchon ring in white gold set with ~0.5 carat (6x4mm) emerald cut Emerald. Crown dimensions: 6.3mm height x 4.3mm width x 3.5mm depth Band dimensions: 1.4mm width x 1.5mm thick International ring size conversion chart . For custom size, specify details in the order notes. Blog: Safeguarding Your Emerald's Sparkle: Proper Storage Solutions for Your lab grown Emerald Ring