1.05 Ct. Purple Spinel from Ceylon (Sri Lanka)

This offering from The Natural Gemstone Company is a precisely faceted, 1.05 carat purple spinel, emerald cut, with exact dimensions of 6.47 by 5.24 by 3.25 millimeters. The stone is faceted in a classic step-cut emerald profile with truncated corners, producing a length-to-width ratio of approximately 1.24 and a total depth of 3.25 mm that yields a depth percentage of about 55.5 percent relative to the average girdle diameter. Clarity is evaluated as slightly included at eye level, color is characterized as dark intensity purple with strong saturation and neutral to slightly cool hue bias, polish is graded excellent, and the material is natural, originating from Ceylon Sri Lanka with no enhancement.

The cutting architecture emphasizes large, planar step facets on the crown and pavilion that produce broad, mirrored flashes rather than dispersed scintillation. The table has been proportioned to balance face-up color saturation with controlled light return; the relatively large table area allows the depth of the purple tone to read uniformly across the table while the stepped crown facets create distinct, layered reflections along the gem’s length. Facet junctions and girdle proportions show exacting symmetry and tight facet alignment, and the excellent polish minimizes surface diffusion of light so that facet planes act as crisp optical boundaries. As an isotropic spinel with refractive index in the range typical for spinel and a vitreous luster, this material gives consistent color transmission without pleochroic splitting, so the emerald cut presents a stable, even color field from a variety of viewing angles.

Although the clarity grade is slightly included at eye level, the lapidary strategy for this piece was deliberately oriented to conceal and aesthetically control the visibility of inclusions. Internal features are positioned and masked by facet geometry and pavilion depth so that they do not interrupt the continuous color plane when viewed face-up. The combination of a step-cut profile, optimal depth ratio, and superior polish effectively minimizes apparent inclusions, producing a face-up presentation that reads as visually immaculate in standard wear. From oblique and profile viewpoints the cut emphasizes the gem’s hall-of-mirrors effect—broad, directional flashes and deep color zones—so that the stone’s perceived visual quality remains consistent and striking from every angle despite the slightly included grade.

In practical design and setting terms, this 1.05 carat emerald cut purple spinel is well suited to fine jewelry that prioritizes color and refined geometry, such as solitaire rings, three-stone engagement settings, and cufflinks where the step-cut’s linear elegance can be showcased. The stone’s depth and excellent polish favor settings that protect the girdle and pavilion while allowing the table to be exposed for maximum color impact; a well-fitted bezel or low-profile four-prong head will preserve the lapidary proportions and maintain stable light performance. Because the spinel is untreated and of natural Ceylon origin, its color will remain stable under normal wear and cleaning. For technical inquiries regarding exact facet counts, table diameter, or mounting tolerances, The Natural Gemstone Company can provide additional measurements, high-magnification photography, and recommendations to ensure the finished piece displays the gem’s effectively flawless presentation and optimized optical performance from every viewing angle.