This figure captures Diamond from Houseki no Kuni as a radiant, faceted gemstone brought to life. The sculpture presents Diamond in a poised, upright stance with arms relaxed at the sides, a clean silhouette highlighted by sharp geometric facets. Translucent white and pale blue hues mimic a crystalline body, with subtle pearlescent paint that catches light to reveal inner facets. Clear resin accents replicate crystalline edges along the chest and limbs, while flood of soft shading adds depth to the curves. The piece includes a minimal stand that supports stability without distracting from the crystal aesthetic.

Diamond is one of the noble Houseki no Kuni gems, named for her pure, unblemished clarity and calm demeanor. In the narrative she acts as a reflective voice among the group, often offering balance when the team faces peril. Her journey centers on resilience, growth, and the discovery of strength through cooperation with others such as Phosphophyllite, Cinnabar, and Bela. The character grapples with identity as a defined gem in a world of metamorphic threats, choosing to protect her fellow gems even when she feels fragile. This tale threads themes of duty, friendship, and the beauty that can emerge from hardship, evolving her into a steady beacon for the cast.