Navajo Sterling Bench Bead and Turquoise Nugget Necklace Sterling melon, fluted, and spherical bench beads are expertly combined with turquoise nuggets on this superb Navajo necklace. The turquoise is in a natural, unpolished state. The nuggets are differing in shades with a lovely gray matrix. Unsigned, measures 32-1/2" by 1".