1.06 Ct. Color Change Sapphire from Ceylon (Sri Lanka)

One beautiful transparent 1.06 carat round shape color change sapphire is presented with exact dimensions of 5.77 x 5.82 x 4.10 mm, origin Ceylon Sri Lanka, medium color intensity, and a clarity grade of very slightly included evaluated at eye level. The gem has a mixed brilliant cut, an excellent polish, and no enhancement. The Natural Sapphire Company provides this sapphire with full disclosure of its natural origin and treatment status, assuring that the color change phenomenon is intrinsic to the material and not the result of heating or other enhancement. The stone is visually clean at typical viewing distances, with very slight inclusions that do not detract from its overall transparency or its capacity to transmit and reflect light effectively.

The mixed brilliant cut is integral to how this sapphire interacts with light, and the cutter has used the combination of a brilliant facet arrangement on the crown and a tailored pavilion design to balance brightness, color saturation, and scintillation. The round outline and proportionate depth allow for efficient light return, minimizing light leakage while preserving the stone tonal balance that produces color change between lighting conditions. Crown facets act as the primary interface with incident light, breaking it into a spectrum of reflections and facilitating both specular return and internal dispersion. Pavilion facets serve to redirect light back through the crown, and when cut to optimized angles they increase internal reflection, which enhances the visual contrast that makes color change perceptible. The mixed brilliant format provides a controlled table size and facet geometry that maintain medium color intensity under daylight while permitting richer violet and blue tones to emerge under incandescent light, the result of selective absorption combined with directional light paths within the sapphire. Excellent polish on every facet face reduces surface scattering, ensuring that light passes cleanly into and out of the stone, and that each facet contributes to a cohesive pattern of flashes and depth.

Beyond optical performance, the cut also supports practical considerations for wearing and setting, with the round shape providing symmetry that maximizes perceived size and evens the distribution of scintillation across the stone face. The proportions, including the shallow to moderate crown and the carefully angled pavilion, create a balance between fire and body color, allowing the stone to display lively flashes without washing out the intrinsic Ceylon hue. The clarity grade of very slightly included indicates that internal features are minor and well positioned relative to the critical light paths, avoiding interruptions to the dominant reflections that define brilliance and color change. Because there is no enhancement, the observed interplay of light and color is a natural attribute of this sapphire, preserved by precise cutting and finishing. For a client seeking a natural, mechanically unaltered color change sapphire with reliable optical performance, this gem from The Natural Sapphire Company exemplifies how thoughtful cutting and exacting polish can amplify a sapphire inherent properties of light reflection, producing a consistent, elegant visual response under varied lighting environments.