2.58 Ct. Cabochon Tourmaline from Mozambique

This entry from The Natural Gemstone Company is a single translucent green tourmaline, weighing two point five eight carats, presented in a round outline and executed in a cabochon cut. The measured dimensions are seven point nine four by seven point nine nine by four point seven nine millimetres. The material displays a medium color intensity with a predominantly fresh green hue, and an excellent surface polish has been achieved across the convex dome. Clarity is graded as very slightly included when examined at normal viewing distance, and the stone has not undergone any laboratory or thermal enhancement, reflecting its natural state and original Mozambique origin. The optical appearance is governed by the cabochon profile, which emphasizes internal characteristics and color saturation rather than faceted brilliance, producing a lustrous, waxy sheen that is typical of high quality tourmaline cabochons.

In technical terms the cabochon form has been selected to maximize the visible color and internal depth of tone while maintaining good transparency through the dome. The medium color intensity is evenly distributed across the face, with subtle locational saturation towards the center, creating a perceived depth in transmitted light. Internal stringer and needle type inclusions and minor feathering are present, consistent with the very slightly included grade, and these features contribute to the gemological fingerprint of Mozambique tourmaline. The translucency permits controlled light transmission, which together with the polished dome results in attractive internal reflections and soft light scattering, rather than the specular return typical of faceted stones. This behavior is important for design considerations, because cabochon tourmaline showcases color and internal texture more than facet defined sparkle.

From a lapidary and craftsmanship perspective, the cutter has maintained an even dome curvature and concentric profile to reduce windowing and to enhance color saturation when viewed face up. The cabochon height at four point seven nine millimetres provides sufficient depth to allow light interaction within the body of the stone, while preserving a wearable profile for ring or pendant applications. The perimeter girdle has been regularized and smoothly finished, enabling secure bezel seating and reducing stress concentrations at the edge during setting. The excellent polish across the dome minimizes surface scattering and enhances clarity perception, while the cabochon orientation aligns the primary color zones to the face so the most visually appealing face up aspect is presented. For setters and designers, a flush or low bezel will protect the dome and preserve the tactile quality, and an open back display will allow more transmitted light if a brighter, more luminous presentation is desired.

Provenance and treatment history are increasingly important to informed buyers and this specimen carries the advantage of natural origin from Mozambique and an absence of enhancement, which supports a conservation of natural value and predictable aging. The Natural Gemstone Company documents the basic gemological attributes using consistent observational standards, and we can provide additional imagery under white and incandescent lighting to demonstrate the cabochon response to different light sources. For custodial considerations the stone should be handled with routine care recommended for tourmaline family minerals, avoiding prolonged exposure to strong heat and abrupt impact at the dome surface. This piece will appeal to collectors and designers who prioritise natural color, documented origin, and precise lapidary execution, and The Natural Gemstone Company stands ready to assist with bespoke setting recommendations and supplementary gemological information on request.