1.29 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 1.29 carat round blue sapphire represents a precise marriage of natural material and lapidary skill, presented by The Natural Sapphire Company,. The gem measures 6.42 by 6.34 by 4.25 millimeters, producing an average diameter of approximately 6.38 millimeters and a depth that is approximately sixty seven percent of the diameter, a proportion that intentionally favors color saturation and visual depth, rather than the shallow proportions often used solely to maximize spread. The cutting style is a mixed brilliant, a deliberate combination of brilliant crown facets with a complementary pavilion design, executed to balance lively scintillation and strong face up color. The clarity has been evaluated at eye level as very very slightly included, meaning inclusions are minute and do not detract from transparency or overall presence when viewed unaided, and the surface condition is excellent polish, with crisp facet junctions and a finely finished girdle. The origin of the stone is Ceylon, Sri Lanka, a source with a long history for producing sapphires that exhibit lively, cool to slightly warm blue tones, and the gem has been heat treated, a stable and widely accepted enhancement to refine its intense hue,.

The mixed brilliant cut used on this round sapphire is engineered to optimize light behavior from both the crown and pavilion, with the crown executed in a modified brilliant geometry to create a broad, lively table scintillation and controlled dispersion, and the pavilion facets arranged to moderate light leakage and to channel returned light through saturated blue zones, producing an even, intense color presentation when seen face up. The cutting proportions, including the deliberate deeper pavilion, generate a balance between contribution to brilliance and enhancement of color depth, which is particularly important in sapphires because modest changes in pavilion angle and depth can shift the apparent saturation of blue. The polish quality noted as excellent contributes directly to specular reflection from facet facets and to the perceived sharpness of facet reflections, so the stone reads as lively and crisp under mixed lighting, while minimizing any hazy veil that can accompany substandard finishing. In technical terms, corundum exhibits a refractive index in the range of approximately 1.762 to 1.770 and a birefringence near 0.008, properties that the cutter exploits by orienting facets to manage double refraction and to maximize coherent light return, and the material hardness of nine on the Mohs scale imparts robust wearability for daily use in a ring setting or heirloom piece,.

The clarity designation of very very slightly included as assessed at eye level signals that the internal characteristics are present but subtle, confined to locations and sizes that do not meaningfully interrupt transparency or optical performance in typical viewing conditions, and this level of clarity contributes materially to both the gemological appeal and to market desirability because it preserves the gem s visual purity while maintaining natural character. Heat treatment in sapphires is a conventional and stable enhancement, applied to improve color uniformity and to reduce certain types of inclusions, and when fully disclosed, as The Natural Sapphire Company does, it allows collectors and connoisseurs to assess value relative to untreated material with comparable color and clarity. The provenance of Ceylon, Sri Lanka is significant because the region s alluvial and metamorphic deposits have a proven propensity to yield blue sapphires with lively hue and well dispersed saturation, attributes that are readily apparent in this specimen s intense color intensity. From an investment and collecting perspective, a well cut, eye clean sapphire of this carat weight and with this level of face up intensity occupies an advantaged position because it combines durable material properties, aesthetic distinction, and geological provenance, factors that informed buyers consider when building a refined gemstone collection,.

Owning this particular sapphire is an investment in both beauty and craftsmanship, because it embodies deliberate choices at every stage, from mining and selection through to cutting and finishing, each decision calibrated to preserve and amplify the stone s natural advantages. The deep but well controlled depth proportion enhances the apparent saturation, the mixed brilliant cutting strategy reconciles brilliance with color intensity, and the excellent polish and careful facet execution produce a gem that reads with exceptional clarity under a variety of lighting conditions, qualities that translate directly into a timeless presence when mounted. The Natural Sapphire Company stands behind the gem s documented characteristics and can advise on setting designs that will maximize optical performance, including open prong mounts to promote light entry and brightness, or low profile settings that keep the stone s depth in optical harmony with metal choices, and bespoke mounting options are available for clients seeking a custom engagement or statement piece. In practical terms, this sapphire is durable enough for daily wear, refined enough for collectible display, and distinctive enough to serve as a compact investment in a category where color quality, cutting precision, and verified origin consistently guide long term appreciation, please contact The Natural Sapphire Company for full gem specifications, viewing options, and custom design consultations,.