ZUNI CORAL & TURQUOISE RING BY ROBERT EUSTACE. Zuni artist Robert Eustace made this exquisite ring out of sterling silver and Turquoise. Robert is known for his carved Turquoise stones. Zuni Pueblo is the largest pueblo in New Mexico, and because of its location, Zuni is the most traditional. Continuing to make jewelry, fetishes, and pottery, most of the people of Zuni are artists. Zuni jewelry makers are known for lapidary skills including inlay, needlepoint, and petite point work.