4.31 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 4.31 carat pear shape blue sapphire presents as a technically refined gemstone, with precise dimensions of 11.15 x 8.02 x 6.78 mm that translate to a commanding face up presence for its weight class. The mixed brilliant cut combines a brilliant facet arrangement on the crown with a carefully engineered pavilion faceting scheme to optimize internal light return and scintillation, creating a lively balance of brilliance and depth. Proportions have been controlled to retain strong visual spread while preserving weight, a critical consideration for buyers who assess value by carat weight and face up appearance. At 4.31 carats this sapphire occupies a premium tier, because sapphire pricing scales non linearly with size, and this stone delivers both the mass and the optical performance that connoisseurs expect from higher carat examples.

Clarity is described as very slightly included evaluated at eye level, an important technical detail indicating inclusions are minimal and do not materially impede transparency or the overall brightness of the table. Color intensity is graded as intense, exhibiting strong saturation and a classic Ceylon blue tonality that reads vivid under standard viewing conditions, enhanced by an excellent polish that sharpens facet junctions and maximizes light transmission. Enhancement by heat treatment is disclosed, a stable and widely accepted process that improves color uniformity while preserving natural crystal integrity, and the sapphire is sourced from Ceylon Sri Lanka, a provenance associated with desirable blue hues and respected cutting traditions. Craftsmanship details such as precise symmetry, well executed girdle proportions, and a polished pavilion finish contribute to predictable setting behavior and security in bespoke designs. For buyers focused on technical specifications and investment quality, this 4.31 carat pear is notable for its combination of weight, optimized mixed brilliant faceting, intense Ceylon color, and high polish, all factors that elevate its market position. The Natural Sapphire Company can provide detailed imagery, cutting diagrams, and custom setting recommendations to ensure the gem is showcased to its full technical and aesthetic potential.