Bolos Indian Pueblo Store Navajo Leonard Maloney Sterling Silver Turquoise Vint Gem Kingman Bolo by Leonard Maloney Navajo Leonard Maloney Sterling Silver Turquoise Vint Gem SunfaceVintage Etsy. Beautiful sterling silver bolo piece has detailed hand stamped designs and is set with natural Kingman Turquoise. Length: 47" Leather: 55. 5" Bolo size: 2. 55" x 3. 14" Stone size: 0. 74" x 1. 10" Tip Size: 2. 93" x 0. 38" Material: Sterling Silver (Silver925) Weight: 5. 23oz 148. 27gram Artist Tribe: Leonard Maloney (Navajo) Stone: Kingman Turquoise The Kingman Turquoise Mine is one of the oldest and highest producing Turquoise Mines in America. It was originally discovered by prehistoric Indians well over 1,000 years ago. Kingman Turquoise is known for its beautiful sky blue color and produces many variations of blue Turquoise.