Probably obtained by diffusion treatment

Oval cut amethyst

however the fire of this gem appears evident and well distributed

or fragments of a stream hidden among the mountains

Ciondolo "Radici" con Rubino Cabochon naturale (trattato) e sfera nascosta di rubino sintetico Pietre Preziose Probably obtained by diffusion treatmentorganic shaped pendant, lost wax casting in 925 silver, handmade, natural ruby (Treated) the cabochon had a semi spherical imperfection in the lower part, and I hid in its socket a small sphere of synthetic ruby that barely moves, you have to know what to look for when you want to see it, but it's there. always.