Navajo artist Mary Livingston has been actively making jewelry since the 1970s.
She specializes in mosaic inlay and carved stone pieces.
Her hallmark is either ML or MARY LIVINGSTON. Below are two examples of her hallmark.
Here is a beautiful piece of her work, a turquoise eagle collar.
Another one-of-a-kind creation made by Mary Livingston is this enormous carved turquoise chief belt buckle.