GEM SESSIONS, an Amsterdam-based creative studio, draws its name from "jam sessions" but with gems, reflecting a collaborative, experimental spirit. Founded by Sayaka Yamamoto, a Japanese-born designer with over 20 years of experience and education in fashion, jewelry, and product design, the studio offers workshops where participants explore jewelry making and unleash their creativity.

The goal of GEM SESSIONS is to provide inspirational, improvisational sparks in daily life.