0.81 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 0.81 carat round blue sapphire measures 5.55 by 5.52 by 3.40 millimeters, presenting a transparent body and an intense color intensity that reads as a vivid Ceylon blue under both natural and controlled lighting. Cut in a faceted mixed brilliant style, the gem pairs a brilliant faceted crown with a modified pavilion to optimize light return while preserving weight, resulting in a depth proportion of approximately 61 percent which contributes to strong scintillation and balanced face up color. The cutting geometry emphasizes precise facet junctions and symmetry, and the excellent polish delivers crisp facet reflections without surface abrasion. Clarity is graded slightly included evaluated at eye level, with inclusions that do not materially obstruct the central table or detract from overall performance. The stone has been heat treated, a traditional and stable enhancement that refines tone and saturation in Sri Lankan sapphires, and it retains a natural vibrancy consistent with origin characteristics attributed to Ceylon, Sri Lanka.

The journey of this sapphire begins in the alluvial and hard rock deposits of Ceylon where skilled local miners recover rough material and perform initial sorting by color and translucency, separating pieces suitable for faceted work. Selected rough is then evaluated by experienced gemologists and handed to a master cutter who determines orientation, facet plan, and pavilion angles to maximize the interplay of color and brilliance for corundum. The material received measured proportions favorable to a round mixed brilliant, allowing preservation of carat weight while achieving an attractive table to depth ratio. After precision faceting under magnification, the sapphire underwent controlled heating in a monitored environment to stabilize and enhance its blue hue, followed by meticulous re-polish to achieve the excellent surface finish. Our gemological team at The Natural Sapphire Company performs final inspection for symmetry, polish, and clarity grading before photographing the gem and offering it for bespoke mounting. This sapphire is well suited to a classic solitaire or a halo setting where the intense Ceylon blue and lively mixed brilliant faceting can be showcased to full effect.