Ammolite is the iridescent shell of ammonites — marine creatures that swam the seas 75 million years ago. Buried and mineralized, their nacre transformed into a gem that splits light into a living rainbow.

Unlike pigments, ammolite's color comes from light interference. Microscopic platelets in the fossilized shell bend and reflect light, shifting from crimson to violet as the stone moves. No two stones share the same pattern.

The cracked, scale-like surface is not a flaw — it is the fossil's original structure, preserved across millennia. Each fissure catches light differently, making every angle a new spectrum.