16.07 Ct. Green Tourmaline from Ceylon (Sri Lanka)

This transparent green tourmaline presents as an exceptional specimen for a high end gemstone collection, combining impressive size, refined cutting and strong color saturation, The gem weighs 16.07 carat, and its face up dimensions measure 16.88 millimeters by 13.42 millimeters, with a depth of 9.13 millimeters, The cushion shape has been executed with a faceted mixed brilliant cut, producing a balanced table and a lively interplay of internal reflections, The color displays an intense green saturation that remains vivid across the table and through the pavilion, The clarity is graded as eye clean when evaluated at eye level, revealing no visible inclusions to the unaided eye, The surface finish exhibits an excellent polish, and the stone has undergone a controlled heat treatment to optimize hue and saturation, The origin is Ceylon, Sri Lanka, a locale recognized for producing tourmalines with fine color and clarity, The Natural Gemstone Company offers this gem as a catalogued piece for collectors seeking museum quality material with documented provenance and technical specification.

The mixed brilliant cutting style enhances both scintillation and overall brilliance, The crown facets and pavilion facets are proportioned to maximize return of light, while the cushion outline softens the geometry and lends a classic silhouette suitable for a variety of presentation contexts, From the top view the faceting pattern delivers an even, lively flash that animates the intense green, From the profile the measured pavilion depth contributes to a substantial face up weight and a deep, resonant tone, Tourmaline is known for pleochroic tendencies, and this stone exhibits subtle variation in green tones when viewed from different angles, a trait that provides visual complexity without compromising color consistency, The cutter has preserved a generous table area to showcase the gem face up, while the pavilion angles have been controlled to reduce windowing and enhance perceived depth, These characteristics make the stone especially appealing to connoisseurs who assess gems by both aesthetic impact and technical merit.

Provenance and treatment are important considerations for collectors, The gem is identified as originating from Ceylon, Sri Lanka, a source with a longstanding history in the international gem trade, Heat treatment has been used to refine the stone’s hue and saturation, a common and stable enhancement for tourmaline that is disclosed here in accordance with best practice, The eye clean clarity grade indicates that the stone will present as visually pure when set or displayed, a feature that elevates its suitability for large scale pieces and for standalone display as part of a collection, At 16.07 carat the gem occupies a scale that is uncommon for intensely colored, eye clean tourmalines, and this combination of size, clarity and color intensity contributes to its desirability for collectors who prioritize specimens that read boldly under normal viewing conditions, In addition to its collectible attributes, the stone is well suited to high end jewelry commissions, where the cushion shape and deep green color will contrast elegantly with white diamonds and precious metal settings.

For stewardship, display and setting considerations, the stone benefits from standard care protocols for tourmaline, Clean with a soft brush and warm, soapy water, avoid prolonged exposure to high temperatures and to strong chemical cleaners, Secure mounting in a protective setting is recommended to limit exposure of the girdle to hard knocks, For display, directional LED lighting with a color temperature that emphasizes mid to slightly warm whites will accentuate the green saturation and reveal the internal fire, This tourmaline is an excellent candidate for a bespoke jewelry commission, a presentation piece in a private collection, or as a center stone within an important portfolio acquisition, Documentation regarding weight, dimensions, treatment and origin is maintained by The Natural Gemstone Company, and we can assist with independent gemological reporting and appraisal upon request, For collectors who seek a combination of technical precision, aesthetic depth and accountable provenance, this 16.07 carat cushion green tourmaline represents a distinguished addition that will hold visual and curatorial presence over time.