This oval-shaped, rose-cut rainbow garnet from the famed Nara Prefecture in Japan delivers an exceptional display of bright neon green iridescence, with flashes that shift across the stone as light strikes its finely polished facets. Weighing 2.41 carats and measuring 9mm x 6.6mm x 3.2mm, this gem exhibits the hallmark lamellar diffraction unique to this rare deposit—where delicate internal structures within the andradite crystal split light into electric hues.

The neon green sheen seen here is among the most sought-after color zones from this locality, evoking the chromatic edge of beetle wings or metallic peridot. The rose-cut faceting enhances both surface luster and depth, allowing the diffraction pattern to shimmer with dynamic presence in motion or under directional lighting.

Stones of this quality from Nara are incredibly limited, as the deposit is now largely exhausted, and very few clean pieces suitable for faceting remain. This one’s not just a collector’s piece—it’s a flash of geologic alchemy, caught mid-transformation.