4.51 Ct. Pink Sapphire from Ceylon (Sri Lanka)

This transparent GIA certified Pink sapphire weighs 4.51 carats and is cut in a cushion shape with dimensions of 11.16 x 8.49 x 4.63 mm, presenting a vivid color intensity and an excellent polish. The mixed brilliant cut combines a traditional brilliant facet arrangement on the crown with a modified pavilion to optimize light return and scintillation. Clarity is graded as very slightly included when evaluated at eye level, and there is no enhancement. The origin of this sapphire is Ceylon, Sri Lanka. The Natural Sapphire Company presents this gem as an example of how pristine material, precise cutting, and uncompromised finishing converge to create a stone that is both visually commanding and technically exceptional.

At a structural level this sapphire owes its singular sparkle to the crystalline architecture of corundum. Corundum is an aluminum oxide crystal with a tightly bonded hexagonal lattice, and that lattice supports a relatively high refractive index and measurable dispersion. Those optical constants govern how light is refracted and split as it enters the stone, and they set a physical foundation that is then amplified by cutting. Where many other gem materials begin with lower refractivity or higher internal absorption, this sapphire transmits light efficiently across its vivid pink range, allowing the internal reflections to travel and be returned to the viewer with minimal loss. The gem also exhibits pleochroism characteristic of corundum, which means that subtle variations in hue and saturation appear when the stone is observed from different orientations, adding depth and dynamic color interplay to its sparkle.

The mixed brilliant cushion cut in this example is an intentional sculpting of light behavior, marrying the fire and scintillation of brilliant faceting with the broad color wash and depth that cushion outlines provide. The crown facets act to fragment incoming light into numerous small flashes, creating scintillation that is perceived as lively movement across the surface. The pavilion facets are arranged to facilitate internal reflection and constructive return of light through the table, so that brilliance is maintained even when the stone is viewed at angles away from direct illumination. The relatively broad table and rounded shoulders of the cushion shape give a large visual face up area, which enhances perceived size while allowing well placed facet junctions to produce crisp flashes rather than a washed appearance. Excellent polish ensures that the facet planes are smooth at the microscopic level, reducing surface scatter and allowing the full effect of the lattice and facet geometry to be experienced as intense, clean sparkle.

Certification and natural origin underscore the integrity of this sapphire for both collectors and connoisseurs. The GIA certificate documents the weight, exact dimensions, cut style, clarity assessment of very slightly included at eye level, vivid color intensity, absence of enhancement, and Ceylon origin. For practical considerations this stone benefits from the durability of corundum which scores high on the Mohs hardness scale, and from careful cutting that protects the stone from unnecessary stress concentrations at points and corners. The Natural Sapphire Company presents this pink sapphire as a ready focal gem for fine jewelry, one whose internal structure, optical properties, and cutting precision combine to yield a sparkle that is both rare and measurable, and whose natural, untreated origin offers assurance of authenticity and enduring value.