Circa 1970s, 18k, by Gilbert Albert, Switzerland. From the catwalk at Fashion Week to the steps of the Art museum, Gilbert Albert’s flair for beyond chic design has been influencing modern jewelry since the 1950s. This 18k gold ring is a miniature abstract sculpture set with an interchangeable eighteen karat yellow gold sphere. Other gemstone spheres can be obtained, we will send the ring with a polished steel sphere and a mineral Amethyst one as well. Excellent condition.