1.33 Ct. Yellow Sapphire from Ceylon (Sri Lanka)

This sapphire presents as a transparent, oval shaped gemstone weighing 1.33 carat, with exact dimensions of 7.17 by 6.06 by 3.94 mm, and a mixed brilliant cut that balances scintillation and face up spread. The stone shows a light yellow hue with a light color intensity, and when examined at eye level it exhibits a clarity grade described as very very slightly included. The surface finish meets an excellent polish grade, permitting crisp facet junctions and lively reflections. The sapphire is beryllium diffused, a disclosed enhancement used to enrich and stabilize the yellow tone, and its declared origin is Ceylon, Sri Lanka. This combination of measured proportions, transparent body, and careful finishing yields a gem that reads as refined and open in tone, suitable for precise design work where optical performance and measured color are required.

The journey of this sapphire begins in the gem gravels of Ceylon, Sri Lanka, where artisanal and small scale operations have long produced a wide range of corundum material. Extracted from weathered metamorphic host rocks and alluvial deposits, rough fragments are initially washed, sieved, and hand sorted for crystal habit and potential. The rough that became this oval displayed a promising combination of transparency and color potential, and it was routed through a sequence of local cutters and graders who made decisions based on yield, orientation, and final appearance. The decision to fashion a mixed brilliant oval reflects an intent to maximize light return from a material with good transparency, while preserving weight to achieve the 1.33 carat presence. During cutting, pavilion angles and crown proportions were calibrated to the rough outline, and polishing cycles were completed to secure an excellent polish. The piece subsequently underwent a controlled beryllium diffusion process instituted by experienced technicians, a high temperature treatment that allows beryllium ions to enter the sapphire lattice and influence color expression, with full disclosure maintained at each step of custody.

Upon arrival into The Natural Sapphire Company inventory, the gem received formal assessment and documentation. Measurement of 7.17 by 6.06 by 3.94 mm was verified, and the mixed brilliant cut was evaluated for symmetry and facet execution, which contribute to the stone exhibiting lively scintillation and balanced light performance in table up orientation. The clarity observation of very very slightly included at eye level indicates that when viewed unaided the stone appears essentially clean to the unaided eye, while fine internal characteristics may be detectable under magnification, consistent with natural formation. The light intensity yellow is steady and reads bright under a range of light sources, and the excellent polish enhances surface reflection which supports a fresh, crisp appearance in jewelry settings. As a corundum, sapphire is durable for daily wear, and the stone’s proportions and polish make it appropriate for a range of mounting styles from bezel to classic prong settings. Care guidance emphasizes routine cleaning with mild detergent, warm water, and a soft brush, and avoidance of extreme heat or harsh chemicals which could affect any surface elements or settings.

Documentation and provenance form part of the final stage before market presentation, and The Natural Sapphire Company maintains records that trace the stone from initial sorting in Ceylon, Sri Lanka, through cutting, treatment, and final quality control. The beryllium diffusion enhancement is plainly disclosed in all documentation, and prospective purchasers receive clear descriptions of the stone’s evaluation, including weight, dimensions, cut style, clarity observation, color intensity, polish grade, and origin. For buyers seeking further assurance, advisory services for independent laboratory reports or additional imaging are available, and our in house specialists can recommend mounting options that complement the mixed brilliant oval profile while protecting edges and optimizing light performance. The resulting gemstone is a carefully considered piece that blends natural provenance with technical refinement, and it carries the traceable stewardship and detailed specification expected in a rigorous market environment, presented by The Natural Sapphire Company.