Incredible quality in this peridot stone, faceted, 8mm wide. Band is flat interior, rounded exterior , 3mm wide. Genuine peridot, August birthstone is hard to find, most are green cubic, at www.therocks.ca you have guaranteed quality. If we say it's real, it is. Over 30 years of jewelry experience behind our business. Only available in size 8. Don't complain about size restrictions please, supply chains are very compromised due to you know what.