Yes, we even have a Julian Lovato ring in our jewelry estate sale! This knockout ring has a shallow box setting of a natural turquoise cab. It was, indeed, made by Julian Lovato of Santo Domingo Pueblo, and is marked "J Lovato IHM" (for Indian Hand Made). It dates circa 1970, and it is size 7 1/2. The ring measures 1 1/4" tall with a width just under one inch.
Sorry, this piece has sold.