This exceptional faceted Rainbow Garnet from San Pedro Mountain in Santa Fe County, New Mexico, is among the finest ever produced from this increasingly coveted American locality. Weighing 12.8 carats and measuring 15.8 mm x 13.15 mm x 6.38 mm, it is unusually large and remarkably clean for this material, making it a true standout among rainbow garnets worldwide.

Cut in a natural shield-shaped form, the gem features three dominant faces that have been freeform checkerboard faceted at low angles—an artistic technique that dramatically amplifies its internal lamellar diffraction. The result is an explosive play of iridescent color that shifts dynamically depending on the light's angle: from vivid blue-green flashes to intense pink, red, and violet sheens, all dancing across a single face.

Stones of this quality from San Pedro are exceptionally rare, especially those that can be both cleanly faceted and retain such strong optical phenomena. The natural crystal form and intensity of spectral layers make this piece an ideal candidate for a striking pendant or high-end talismanic jewel. As far as rainbow garnets from New Mexico go—this is truly the cream of the crop.