anime illustration, A highly detailed close-up illustration of a multifaceted, oval-shaped blue gemstone, centrally positioned in a three-quarter view against a dark gradient background. The multifaceted gem is flawless, exhibiting exquisite transparent facets with visible internal reflections and intricate refractions, a clear white center, and a soft blue glow. The edges of each facet are sharply defined, with polished micro-textures and delicate minute light caustics casting inside the stone. No character or figure is present. Lighting is controlled, directional key lighting creating bright specular highlights on the upper surfaces, contributing crisp contrast in the facets. The overall atmosphere leans toward luxury and serenity, with a cool color palette of blues offset by the darkness.
