0.83 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 0.83 carat round blue sapphire presents precise dimensions of 5.70 by 5.75 by 3.44 millimeters, yielding a depth of approximately 60 percent that reflects disciplined cutting proportions for a mixed brilliant faceting style. The mixed brilliant cut marries a brilliant cut crown with modified pavilion faceting to maximize face up brilliance while preserving color saturation, and here that trade off is executed with technical refinement. Clarity is graded as very slightly included at eye level, which in practical terms reads as eye clean under typical viewing distances, inclusions confined and not disruptive to light return. The intense color intensity is consistent across the table and crown facets, demonstrating a strong, vivid blue with a subtle Ceylon character that leans into a lively, medium to deep tone rather than a muted or overly dark one. Polish is excellent, facet junctions are sharp and reflective, and the heat treatment applied is a standard, stable enhancement used to optimize tone and clarity without resorting to glass filling or surface alterations. Origin is Sri Lanka, historically known as Ceylon, a provenance that often imparts a distinctive, bright blue expression sought by connoisseurs.

Rarity in the market is twofold for this stone, size and color, and that is central to its appeal at The Natural Sapphire Company. Round sapphires approaching one carat with intense Ceylon blue saturation are comparatively scarce because small rough must retain exceptional color and gem quality through cutting to deliver both weight and vibrancy. Achieving an evenly intense face up color in a sub one carat round requires careful pavilion depth control and facet design, and mixed brilliant execution on this piece preserves both light performance and chroma, which makes it stand out against typical commercial material that either sacrifices tone for brightness or loses brilliance when cut deep. For practical design considerations this sapphire sits ideally as a solitaire or halo center in a fine mounting where its eye clean clarity and vigorous blue will read as larger than its weight suggests, or as an accent in bespoke work where provenance, polish, and precise faceting are valued. For clients seeking a technically well cut, intensely colored Ceylon sapphire in a rare size category, this gem represents a distinctly collectible choice from The Natural Sapphire Company.