361.04 Ct. Pink Cabochon Star Rose Quartz from Ceylon (Sri Lanka)

This oval cabochon is a technical exemplar of geometric shaping applied to star rose quartz, weighing 361.04 carats and measuring 42.90 x 33.28 x 34.86 millimeters. The cutter executed an intentionally high dome profile, with a broad, symmetrical oval crown that maximizes the interaction of incident light with the stone's oriented silk inclusions. The cabochon cutting style concentrates light across a central plane, and the curvature radius and proportional height have been optimized to produce a strong, well defined asterism. The stone is translucent with intense pink color intensity, and it is evaluated as eye clean at typical viewing distances, which permits the star to appear without interruption from visible surface or internal flaws. The polish is excellent, creating a smooth optical window that enhances contrast between the diffuse body color and the star rays, and no enhancement has been applied, confirming natural material integrity from its origin in Ceylon Sri Lanka.

The asterism is a natural feature produced by densely packed, parallel needle like inclusions, oriented in intersecting sets, which act as microscopic reflectors to generate a sharp six rayed star under a single point light source. In this specimen the geometric cabochon form translates those internal orientations into a coherent optical star, with rays that extend symmetrically from a crisp central point and maintain intensity as the viewing angle or light source shifts. The star displays uniform ray width and minimal diffusion, a result of precise axis alignment during cutting and the substantial dome height that allows light to be captured and re emitted across the inclusion planes. For connoisseurs who assess technical merit, this piece from The Natural Gemstone Company offers demonstrable control of profile geometry, symmetry, and surface finish, all of which contribute to maximum light play and a distinct, centered asterism. The combination of eye clean clarity, intense pink saturation, substantial dimensions, and meticulous cabochon geometry makes this star rose quartz both an optical study specimen and a premium collector gem.