3.82 Ct. Yellowish Green Tourmaline from Ceylon (Sri Lanka)

This specimen from The Natural Gemstone Company is a transparent, radiant shape tourmaline weighing 3.82 carat with precise dimensions of 11.81 by 7.94 by 5.49 millimeters. The cut presents an elongated rectangular outline with slightly trimmed corners and a length to width ratio of approximately 1.49 to 1. The stone exhibits intense yellowish green color, originating from Ceylon, Sri Lanka, and has been left in its natural state with no enhancement. Clarity is graded slightly included at eye level, which indicates small internal characteristics that are visible under close inspection but do not materially detract from face up performance. The polish has been evaluated as excellent, and facet junctions and girdle finish have been executed to a high degree of uniformity.

The radiant cut employed here is a hybrid faceting architecture that combines a brilliant facet schema on the crown with a dense pavilion facet network designed to optimize internal light return. The pavilion depth expressed as a proportion of the mean girdle diameter is approximately 55.6 percent, a balanced depth that preserves vivid table brightness while maintaining sufficient pavilion volume to promote strong internal reflections. The crown layout features a well sized table with multiple star and kite facets that break up incoming light into controlled flashes, while the pavilion facets are angled to create layered internal mirrors that redirect light back through the crown. This interplay of shallow crown facets and a moderately deep pavilion reduces the tendency for windowing and enhances scintillation, producing a mixture of broad flashes of color and tight pinpoint sparkle that emphasizes the stone s intense saturation. The trimmed corners typical of a radiant shape reduce extinction across the corners, maintaining even light distribution across the rectangular face. Additionally, tourmaline commonly exhibits pleochroism, and the cutter has oriented the stone to present the most desirable yellowish green hue when viewed face up, ensuring the radiant facet pattern maximizes perceived saturation along the principal viewing axis.

From a craftsmanship perspective, the excellent polish and precise facet junctions are critical to the optical performance of this tourmaline. High polish reduces surface scattering of light, allowing the internal facet geometry to operate with minimal loss, and accurate symmetry ensures predictable light paths that translate to consistent brilliance from multiple viewing angles. The slightly included clarity grade means inclusions are present but are largely confined to lower pavilion regions or are of a nature that does not interrupt the main light return, so face up contrast and color integrity remain strong. For mounting and design considerations, the radiant silhouette and trimmed corners allow for protective bezel or partial bezel settings that shelter corner points while showcasing table brilliance, and an oriented long axis setting will accentuate the stone s elongation and linear flashes. This gem represents an intersection of material quality and cutting technique, offering a vigorous yellowish green presence, robust internal light performance, and the assurance of natural origin and no enhancement, available through The Natural Gemstone Company.