Fire Agate, red - brown color with a holographic effect and iridescent play of different colors. Mexican deposit
Frame: Author's, handmade, made of 925 * silver with blackening, in the lower part of the ring shank there is a nameplate and a sample of the State Assay Chamber.
The size of the stone (small) is 9x11x3 mm, the weight is 1.27 g.