The figure captures Phosphophyllite as a delicate, crystal-inlaid character from Houseki no Kuni. The pose conveys a quiet curiosity, with slender limbs posed gracefully and a subtle tilt of the head that suggests thoughtfulness. The sculpt emphasizes gem facets along the torso, limbs, and hair, with translucent and lightly tinted surfaces that catch the light to mimic crystalline reflections. Soft color gradients ride along the varnished paint, highlighting the character's signature pale teal to blue-green hue. Fine detailing on the cape, jewelry, and exposed gem facets creates a sense of fragility and elegance suitable for display.

Phosphophyllite is introduced as one of the gentlest and most earnest gems, often underestimated due to her fragility and youth. Throughout Houseki no Kuni, she searches for purpose, learning to contribute to the lunar court by adapting, solving problems, and growing emotionally alongside her fellow gems. Her arc centers on transformation from a time-worn, brittle jewel into a resilient being who uses knowledge, empathy, and teamwork rather than brute strength. She forms friendships with others, particularly those who value mercy and curiosity, while challenging herself to face harsh truths about conflict and duty. The narrative emphasizes growth, self-acceptance, and the belief that even the smallest gem can spark meaningful change in a vast, perilous world.