Alexandrite from Houseki no Kuni is rendered as a radiant gemstone-inspired figure with a crystalline silhouette that captures the character's ice-blue facets and subtle lavender undertones. The designer's interpretation emphasizes sharp geometric planes that catch light from every angle, producing a prismatic shimmer across the torso, head, and limbs. The pose suggests quiet resolve, with a poised stance and gently lifted chin, as if listening to distant conversations among the other gems. The surface is finished with a high-gloss lacquer to mimic a polished mineral surface, while translucent colored accents highlight key joints for a jewel-like effect. Overall, the figure embodies elegance, resilience, and a shimmering otherworldliness.

Within the world of Houseki no Kuni, Alexandrite is one of the living gemstones who navigate identity, duty, and the fragile balance between beauty and threat. Born from a rare combination of color changes and reflective intensity, Alexandrite embodies adaptability and quiet empathy, often acting as a calming voice among a diverse group of sentient gems. The character faces moral dilemmas as they confront predicaments that test loyalty to comrades and the survival of their people. Through their interactions with other characters and the demanding environment of the lunar republic, Alexandrite seeks understanding of purpose, learns to trust others, and discovers how personal change can help safeguard a fragile world.