2.51 Ct. Yellow Sapphire from Ceylon (Sri Lanka)

This transparent yellow sapphire weighs 2.51 carats, and measures 7.22 x 7.01 x 4.88 mm, presented in an asscher octagon outline that marries sharp geometric presence with classical step cut aesthetics. The cutter has executed a traditional Asscher faceting scheme, using concentric square steps on both crown and pavilion, and precise truncation at the corners to form the octagonal girdle. The measured depth of 4.88 mm yields an overall depth ratio of approximately 68.6 percent when referenced to the average of the length and width, a proportion that is optimal for step cuts because it balances the open table and crown height against pavilion depth to produce stable light return without excessive windowing. Polish is graded excellent, which indicates that facet junctions are cleanly executed and surface luster is maximized, and symmetry is tight, so facet alignment reinforces the hallmark Asscher hall of mirrors effect rather than dispersing it. The gem has been heat treated, a standard and stable enhancement for sapphire that improves color uniformity and transparency while preserving natural crystal structure, and it originates from Ceylon Sri Lanka, a source long regarded for producing sapphires with lively tone and appealing saturation.

Optically the stone displays an intense color intensity, a vivid yellow that reads warm and golden when viewed face up yet retains depth when tilted, a trait that step cutting accentuates through controlled broad flashes and repeating linear reflections. The Asscher cut, with its large open table and tiered pavilion, emphasizes color body and internal flash rather than the scattered brilliance associated with brilliant cuts, so the result is a sophisticated interplay of bold color planes and mirrored facet bands. Clarity is reported as very slightly included at eye level, which in practical terms means minor inclusions are present but do not detract from overall transparency or visual appeal when set, and in many lighting conditions they are masked by the strong step facet reflections. The cutter appears to have oriented the crystal to place any rutile or needle inclusions along pavilion planes where they become part of the stone character rather than focal features, a considered approach that preserves weight while optimizing apparent clarity. The excellent polish and controlled facet geometry allow for crisp facet contrast under both daylight and artificial lighting, and the gem will exhibit pleasing scintillation in softer environments while offering bold flashes in directional light.

For presentation as a gift this gem is particularly compelling because its technical attributes translate directly into a striking visual statement. The Asscher octagon silhouette reads as modern and architectural, while the intense Ceylon yellow conveys warmth and optimism, making it an ideal choice for milestone celebrations such as anniversaries, commemorative birthdays, or the marking of a new chapter. The size and weight are substantial for an Asscher of this profile, so when mounted as a solitaire in a four or eight prong setting, or set as the central stone within a structured halo, the gem commands attention without relying on accent stones. Because of the clarity and depth characteristics, the stone pairs elegantly with cool white metals to create contrast, or with warm gold tones to intensify the yellow, and its flat table and defined crown facets lend themselves to protective settings that preserve the clipped corners. At The Natural Sapphire Company the stone can be delivered alone for a bespoke design, or set into a finished piece with settings engineered to support the girdle profile and to highlight the step cut geometry, and our design recommendations center on preserving the optical pathways that deliver the Asscher hall of mirrors effect.

When selecting this sapphire as a gift consider the recipient who values craftsmanship and gemstone provenance, someone who appreciates a precise cut, considered proportions, and the subtle interplay of color and facet architecture. The heat treatment is standard and stable, and provenance from Ceylon Sri Lanka adds a layer of geological and historical interest that informed collectors recognize. For those interested in custom work, The Natural Sapphire Company offers advisory guidance on setting styles and metal choices, and can provide detailed imaging and viewing orientations to ensure the gem performs as expected under everyday lighting conditions. This 2.51 carat Ceylon yellow sapphire with asscher octagon faceting is a rare combination of technical finesse and emotive color, a present with both visual immediacy and enduring craftsmanship that will be cherished for years.