1.56 Ct. Greenish Blue Sapphire from Ceylon (Sri Lanka)

This transparent 1.56 carat trillion shape greenish blue sapphire measures 7.16 x 7.69 x 3.72 mm, and is cut as a mixed brilliant. The mixed brilliant faceting combines a brilliant style crown with a modified pavilion geometry, producing strong forward light return and controlled scintillation that flatters the greenish blue face up color. Clarity is graded eye clean evaluated at eye level, which allows unobstructed light passage through the pavilion facets and preserves crisp facet junctions. Color intensity is described as dark, and the excellent polish on all facets maximizes optical performance, delivering crisp facet contrast and a lively play of light across the triangular outline. The stone has been heat treated, a stable and widely accepted enhancement that optimizes hue and reduces feathery inclusions while preserving structural integrity.

On a technical level the greenish blue hue of this corundum is the result of trace element chemistry common to Sri Lankan material, with iron and titanium contributions driving the blue component and variations in iron causing the greener nuance. The mixed brilliant facet architecture is tailored to this color profile, using pavilion depth and crown angle relationships that balance depth saturation with surface brightness. At a depth of 3.72 mm for this size, the proportions yield a strong face up saturation without appearing overly dark in typical mounting orientations. The excellent polish and precise facet symmetry further enhance important visual parameters, such as optical windowing and extinction patterns, ensuring even color distribution and stable brilliance under different light sources.

Provenance from Ceylon Sri Lanka adds measurable value to this trillion sapphire, because Sri Lankan deposits are known for producing cornflower to greenish blue tones with good saturation and a clean crystalline habit that responds well to cutting. The island has a long history of skilled lapidary work, and that cutting tradition is evident in the balanced proportions and finish quality of this gem. For collectors and connoisseurs, origin complements the gemological attributes, reinforcing desirability and market positioning. The Natural Sapphire Company presents this piece as an exceptional candidate for a bespoke ring or pendant setting, where its mixed brilliant cut, eye clean clarity, and Ceylon provenance will be showcased to best effect.