0.90 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent 0.90 carat round blue sapphire measures 6.07 by 6.10 by 3.16 mm, yielding a depth of approximately 51.9 percent, a proportion that balances table reflection and pavilion return for lively light performance. The cutting style is faceted with a mixed brilliant cut, combining a brilliant facet arrangement on the crown with a precision pavilion faceting scheme to concentrate blue saturation while maintaining scintillation. Clarity is graded slightly included at eye level, which in this size translates to minor internal characteristics that do not materially diminish the stone s overall transparency or light return. Color intensity is described as intense, exhibiting the deep Ceylon blue tone associated with material from Sri Lanka, and the piece has undergone heat treatment to stabilize and enhance its hue, a widely accepted and stable enhancement in the trade. The polish is excellent, which preserves crisp facet junctions and maximizes surface luster, and the well executed girdle and pavilion facets make the stone suitable for precise mounting with minimal rework.

As a setting centerpiece this sapphire adapts to a wide range of designs, and The Natural Sapphire Company can assist with technical recommendations for each option. For classic solitaires a four prong or six prong head will showcase the table and allow maximum light entry, while a low profile bezel provides everyday wear security and protects slightly included areas near the girdle. Mixed metal pairings are viable, with platinum or 18 karat white gold emphasizing depth and contrast, yellow gold warming the blue toward a vivid royal appearance, and rose gold creating a modern vintage juxtaposition. For higher impact, a halo of small diamond melee around a 6.1 mm round stone will increase perceived diameter and add brilliance, with typical melee sizes ranging from 0.01 to 0.03 carat each depending on halo scale. Alternative options include three stone shoulders with tapered baguettes for directional emphasis, micro pavé shoulders for added sparkle, bezel set pendant mounts for low profile elegance, and precision tension settings where measured girdle thickness and a skilled setting technique secure the stone while optimizing light. Custom CAD visualization, exact setting tolerances, and recommended prong dimensions are available, and The Natural Sapphire Company will provide bespoke mounting guidance to ensure the sapphire s optical properties and structural integrity are preserved in the final jewelry piece.