MJ Black Jack Turquoise Sterling Silver CuffBold, classic, and built to stand out. Handmade by MJ, our in house silversmith, this sterling silver cuff features a striking Black Jack turquoise stone with rich natural character and matrix that gives the piece a strong western look. The deep tones and unique patterns in Black Jack turquoise make every cuff feel one of a kind. It is the kind of piece that works effortlessly with everyday stacks while still making a statement on its own. Designed