Beautiful Arizona peridot loose gemstone. Large 4.91 ct., 12 mm trillion. Rare material from Arizona, especially in this carat weight. Peridot prices have gone way up since the affordable Chinese material has become scarce and the expensive Pakistani material has become available. If this trend continues, prices will continue to go up. I bought this stone years ago at the Tucson show from a dealer who had peridot and four peaks amethyst. A wonderful U.S. gemstone. A Pakistani peridot of this quality and carat weight would cost at least $500.00.