Boulder Opal-with iridescent play of all colors of the rainbow. Australian 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 stones is 11x21x3 mm; 10x24x3 mm, the total weight of the stones is 3.80 g.