Navajo High Grade Kingman Turquoise Sterling Silver Concho Necklace Allison Lee 198This item can be shipped to United States. Early vintage navaj sterling silver old kingman turquoise concho belt/necklace the seller is tom2arrows and is located in this country us. Each Concho measures around 2 x 1-1/4. Maximum length is 38 and the minimum is adjustable & up to you-wherever you choose to link the buckle.