2.10 Ct. Blue Sapphire from Ceylon (Sri Lanka)

Other certified Blue Cornflower 2.10 carat cushion shape blue sapphire, dimensions 8.76 by 6.33 by 4.02 millimeters, presents a precisely executed mixed brilliant faceting scheme that optimizes both fire and color saturation. The cushion outline retains softly rounded corners and an elongated table plane that favors a broad face up presence, while the mixed brilliant cutting combines a brilliant style crown with a pavilion that incorporates controlled step elements to direct light return and deepen the apparent color. With a measured depth of 4.02 millimeters against an average girdle diameter of 7.545 millimeters, the stone displays a depth ratio of approximately 53.3 percent, a proportion that yields a generous face up area and a lively, open appearance under direct and diffuse illumination. The polish has been graded excellent, contributing to crisp facet junctions and minimal surface diffusion, so that luster and facet sparkle remain crisp at hand view and in photographic reproduction.

Clarity is graded slightly included at the eye level, which for this sapphire manifests as localized internal features that are visible only on careful inspection and that do not interfere with the gemological attributes or structural integrity. These inclusions produce subtle internal character and occasional internal reflections that can enhance scintillation when the gem is set, rather than detract from it. Color is described as intense cornflower blue, with even saturation across the table and crown, and a hue balance that leans toward the pure blue quadrant rather than toward green or gray modifiers. Origin is Ceylon Sri Lanka, a known source for cornflower tones that combine medium to medium deep saturation with lively overtone behavior. The stone has not been subjected to any enhancement, so the chroma and tone are intrinsic to the rough, and color stability is native rather than diffusion dependent. Optical phenomena typical of corundum are present in balance, with minimal pleochroic variance so that the gem reads consistently blue from multiple viewing angles, an attribute that favors predictable behavior in ring and pendant settings.

From a practical and aesthetic longevity perspective this sapphire embodies the attributes that ensure a lifetime of wear and continued appeal. Corundum ranks nine on the Mohs scale, imparting inherent resistance to abrasion and retaining facet definition through routine wear, and the excellent polish reported at The Natural Sapphire Company will prolong strong light performance by minimizing surface microabrasion. Because this example is untreated, the internal lattice and chromophore distribution are stable under normal environmental exposures, including household light and the ultraviolet components of sunlight, so the intense cornflower color will remain representative of its original state for years of regular use. The mixed brilliant cutting approach is also advantageous for long term visual performance, because the combination of crown brilliance and pavilion control reduces the risk of windowing, maintains perceived depth of color when set, and allows cutters to orient the table and pavilion angles in a manner that compensates for natural unevenness in rough, producing a balanced appearance in a volume efficient form.

For setting and design considerations recommend a mounting that supports the girdle and allows light to enter the pavilion unobstructed, such as a four prong or bezel with open gallery, depending on design preference, because the stone benefits from back and side light to show its even intense color. Due to the slightly included clarity grade and the untreated origin, precision setting with protective prongs is advisable to avoid point stress at the corners while still permitting face up brilliance to dominate. At The Natural Sapphire Company we present this gem with full provenance and gemological notes, and our cutters have retained pleasing facet symmetry and junction precision to maximize both brilliance and durability. This cushion shape cornflower blue sapphire will continue to captivate as a centerpiece or accent stone, because its intrinsic chroma, stable untreated origin, and technical cutting choices ensure enduring color, persistent sparkle, and structural integrity for generations of wear.