0.75 Ct. Purple Spinel from Ceylon (Sri Lanka)

This cushion shaped spinel weighs 0.75 carat, with dimensions 6.07 x 4.82 x 3.09 mm, and is executed as a faceted gem using a mixed brilliant cut. The mixed brilliant approach combines a brilliant facet pattern on the crown with a modified pavilion that optimizes return of white light and colored flash, producing both strong brilliance and lively scintillation across the table and crown facets. The measured pavilion depth relative to the average of the length and width yields a balanced profile at approximately 57 percent depth, a proportion that preserves face up spread while maintaining sufficient pavilion geometry for dynamic light performance. The stone displays medium color intensity in a pure purple hue, and the clarity is classified as very very slightly included when evaluated at eye level, indicating that imperfections are minimal and do not disrupt the transparency or visual appeal. Polish is graded excellent, which ensures crisp facet junctions and minimal surface abrasion, maximizing light return and ensuring each facet interacts cleanly with incident light.

Materially and optically this spinel exhibits the characteristic properties that make spinel an enduring choice for fine jewelry. Spinel crystallizes in the isometric system, producing an optically isotropic material that does not show pleochroism, allowing a uniformly faced color across different viewing angles. The combination of a high refractive index and good dispersion relative to many other gemstones produces a lively, vivid appearance that is especially favorable for medium intensity colors, where the balance between saturation and brilliance is optimal. Hardness on the Mohs scale is a robust eight, offering strong resistance to everyday wear, and specific gravity in the range typical for spinel contributes to a satisfying heft for its physical size. The absence of any enhancement means the color and clarity you see are natural and stable, not the result of heat treatment, diffusion, or dye, which is an important consideration for collectors who prioritize natural state gems with unchanged optical properties.

Craftsmanship details speak directly to the lapidary decisions behind this piece. The cutter selected a cushion outline to harmonize with the mixed brilliant faceting, which enhances the stone s face up appearance by concentrating color in the table while allowing perimeter facets to produce lively scintillation. Excellent polish indicates that final lap phases were controlled to eliminate polish lines and to preserve facet symmetry, and the very very slightly included clarity grade suggests that inclusions are either minute crystals or isolated pinpoints that are positioned so as not to interrupt facet symmetry or structural integrity. The girdle is executed to practical thickness in order to facilitate secure setting without excessive loss of weight, and facet junctions are carefully aligned to avoid optical leakage at facet interfaces. Origin is Ceylon, Sri Lanka, a provenance that is associated with long standing lapidary traditions and material known for even color distribution and attractive tone. Because this spinel is unenhanced, the Ceylon origin contributes to its rarity profile for collectors who value stones in their original state directly from historically significant mining regions.

Ethical sourcing and responsible stewardship are integral to the presentation of this gem, and The Natural Gemstone Company places emphasis on traceable supply chains and fair trade practices. This spinel was acquired through partners who work directly with small scale and artisanal miners in Sri Lanka, with documented chain of custody and support for community level initiatives that improve local working conditions and environmental practices. For conscious consumers, the combination of natural, unenhanced material, transparent origin, and responsible procurement means that acquiring this gemstone supports better outcomes at the mine site and reduces the likelihood of opaque middleman markups or unverified treatment histories. In practical terms for a collector or a bespoke client, this stone is ready for mounting into high wear settings, such as engagement rings or signature daily pieces, because of its durability, precise cut proportions, and naturally stable color. The Natural Gemstone Company can provide additional documentation on request, including high resolution imaging, independent gemological verification, and bespoke setting consultation to ensure that the final piece reflects both the optical strengths of the stone and the ethical values of the buyer.