1.40 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This sapphire is a transparent 1.40 carat oval, with precise dimensions of 8.01 x 5.69 x 3.77 mm, presented by The Natural Sapphire Company. The gem has a mixed brilliant cut combined with an oval outline, and it displays a medium intense blue color intensity without any enhancement. The clarity grade is very slightly included as evaluated at eye level, and the stone has an excellent polish that preserves crisp facet junctions and mirror like facet surfaces. The origin is Ceylon Sri Lanka, a region historically prized for sapphires that exhibit a lively and complex blue palette, and the absence of treatment confirms the natural state of the material for connoisseurs who prioritize untreated provenance.

The geometric faceting of this mixed brilliant oval is engineered to allow maximum light play, producing a balanced interplay of brilliance and scintillation. The mixed brilliant design typically combines a faceted crown with a faceted pavilion geometry that channels light through a carefully calculated pattern of facets, and in this specimen the crown facets present broad, well angled planes that catch incident light, while the pavilion facets return that light through the table and crown in a series of bright flashes and contrasting dark zones. The oval outline enhances apparent surface area, allowing the light to traverse a longer optical path within the crystal lattice, and this contributes to both depth of color and dynamic sparkle. Symmetry of the facet layout is essential for even light distribution, and this stone evidences consistent facet alignment that reduces light leakage and supports a steady, lively performance from different viewing angles.

Color and clarity interact with the faceting geometry to determine the visual character of the gem, and in this sapphire the medium intense blue is layered across the table and facets in a way that emphasizes saturation without overwhelming brightness. The Ceylon origin contributes to a bluish tone that can exhibit subtle variations across the stone as the viewing angle changes, and the mixed brilliant faceting accentuates this pleochroic tendency by exposing alternating facets that reflect cooler and slightly warmer aspects of the blue. Clarity described as very slightly included at eye level indicates that natural internal features are present but minimal in impact, and because the stone is transparent and well cut, these features do not interrupt the overall light performance or diminish the sense of depth. The excellent polish further ensures that each facet acts as an efficient mirror, maximizing return of light and maintaining crisp contrast between flashes.

Practical considerations reinforce the gem quality and suitability for fine jewelry, and the 8.01 x 5.69 mm dimensions and modest depth present a versatile profile for a range of settings that protect the girdle while showcasing the table and crown faceting. Sapphire is corundum with a high degree of hardness, and this material stability supports daily wear when set with appropriate protective design elements. Because this stone is untreated, with confirmed Ceylon Sri Lanka origin and an excellent polish, it is well suited to become a primary center stone that highlights its natural color and engineered faceting. The Natural Sapphire Company documentation can accompany the gem, providing clear specification of weight, measurements, cut type, clarity assessment, color intensity, enhancement status, and origin, supporting informed decisions for designers and clients who value both optical performance and verified provenance.