Mauve Diamond stands as a key work from this period, where the diamond form is fully activated as both structure and expression. Layers of saturated color converge within and around the form, creating a sense of internal pressure and instability. Produced in Paris during a period of personal and professional transition, the work reflects a heightened emotional and material intensity. With documented connections to the Martha Jackson Gallery, it situates Yokoi within an international network while asserting a distinctly independent voice.