1.04 Ct. Yellow Sapphire from Ceylon (Sri Lanka)

This transparent 1.04 carat trillion shape yellow sapphire is a finely proportioned gemstone from Ceylon Sri Lanka, measuring 6.31 x 8.35 x 3.80 mm, with a clarity grade described as very very slightly included when evaluated at eye level, a medium light color intensity, and an excellent polish. The lack of any enhancement underscores the natural integrity of the material, and the stone presents consistent light transmission with a clean pavilion and crown interface. At 1.04 carats the weight distribution is balanced across the triangular outline, producing a stable table to depth ratio that optimizes return of light while maintaining desirable face up size for rings and pendants. The neutrality of the medium light yellow allows flexibility in metal pairing, providing a warm luminescence in yellow gold, a refined contrast in rose gold, and a fresh, contemporary presentation in platinum or white gold, while the excellent polish ensures crisp facet junctions and minimal surface diffusion across all lighting environments.

The trillion cut exhibited here is executed in a triangular brilliant style with finely aligned facet planes, symmetrical apexes, and precise girdle proportions, which together create evenly distributed scintillation and well defined flash patterns when the stone is rotated. The crown facets are calibrated to balance brilliance and dispersion, while the pavilion facets form a series of reflective wings that channel light back through the table and crown. The clarity grade of very very slightly included at eye level indicates inclusions are minute and do not interrupt the faceting geometry or light pathways, allowing for clean, high contrast facet reflections. Craftsmanship evidence is evident in the excellent polish, where facet edges are sharp and meet at consistent angles, reducing light leakage and enhancing scintillation. For settings that emphasize optical performance, an open back or low bezel will allow maximum light ingress, while a raised three prong or UP setting will showcase the triangular symmetry and table face prominently.

This sapphire is particularly well suited to a range of custom jewelry settings, and The Natural Sapphire Company can advise on technical mounting choices to protect the corners and enhance the stone geometry. Classic three prong mounts that use pointed prongs at each apex will hold the trillion securely while maximizing exposure to light, whereas V prongs add additional protection to vulnerable corners without obscuring the triangular silhouette. Bezel settings can offer greater security and an uninterrupted profile, and a thin, low bezel will maintain a contemporary look while a partial bezel can combine protection with light access through open facets. For ring designs consider tapered side stones such as baguettes or tapered trillions to follow the triangular lines, or pair with round brilliant melee in a halo to increase perceived size and add scintillation contrast. East west orientations provide modern asymmetry, while solitaire or halo pendants maintain classic elegance. When setting in studs, matched pairs or asymmetric combinations with a contrasting center stone can be designed to accentuate color and clarity. Technical considerations include specifying a seat that accommodates the measured depth of 3.80 mm to avoid excessive pressure on the girdle, allowing for a slightly undersized bezel or custom prong seat to prevent stress on the apexes, and selecting metal thickness and prong profiles that account for daily wear. With its natural Ceylon origin, unenhanced clarity, and precise trillion faceting, this stone is an exemplary candidate for bespoke commissions that demand both aesthetic refinement and structural integrity, and The Natural Sapphire Company is available to provide CAD previews, mounting recommendations, and precision manufacturing to realize settings that optimize optical performance and long term wearability.