The K818 alloy is a white gold alloy for 18-22 kt applications developed for high-precision applications, particularly suitable for the production of rings with very thin details and for investment casting without stones.

It stands out for its ability to ensure a compact and resistant structure even on extremely reduced sections, making it ideal for delicate processing and fine details, where stability and precision are required.

From a technical standpoint, the alloy offers good fluidity during casting, allowing for accurate filling of molds and faithful reproduction of the most delicate geometries, with homogeneous and well-defined surfaces.

The natural white tone provides a good aesthetic result even in the rough state; rhodium plating is recommended to achieve greater brightness and uniformity of color, but it is not strictly necessary.

The K818 alloy therefore represents an ideal solution for precision gold jewelry, where fine details, surface quality, and reliability in the investment casting process are required.