This 3.9 ct faceted rainbow garnet from San Pedro Mountain, New Mexico, showcases exceptional top-level iridescence, with vivid color shifts ranging from neon blue-purple through red, orange, magenta, and green. Rather than traditional faceting, the stone’s polished surfaces follow the original crystal faces, carefully worked down to expose the brightest internal lamellar diffraction layers. The result is a dynamic interplay of color and light that radiates from every angle. While a few minor internal fissures are present, they do not reach the surface and do not diminish the stone’s outstanding optical quality. This is a superb example of high-grade material from San Pedro, equally suited for advanced collectors or a custom talismanic jewel.