29.09 Ct. Cabochon Tourmaline from Mozambique

This oval shape green tourmaline weighs 29.09 carat, and measures 18.70 by 13.60 by 9.40 mm, presented as a classical cabochon cut with a generously domed crown and a smooth, well proportioned pavilion. The Natural Gemstone Company is pleased to offer this semi translucent specimen, sourced from Mozambique, an origin recognized for producing tourmalines with lively saturation and clean tone. The cutter oriented the piece to maximize the medium intense green color, centering the most desirable green along the domed axis to create a visual depth that reads richer than flat measurements alone might suggest. The overall silhouette is a true oval with even symmetry, a refined girdle profile that permits confident setting in a range of mounting styles, and an excellent polish that allows the surface to reflect light evenly while preserving the soft internal glow that cabochons are prized for.

From a gemological perspective this tourmaline carries a clarity grade of slightly included when evaluated at eye level, a reliable classification for material with small internal features that do not detract from overall beauty. Included features are typical of gem quality tourmaline and include fine tubes and needles aligned with crystal growth, minor fingerprint type veils that diffuse light rather than interrupt it, and sparse pinpoint crystals that add character without compromising stability. The semi translucent body allows controlled light transmission, which coupled with the medium intense color intensity results in an even, lively appearance. Tourmaline is known for pleochroic tendencies, and in green material one can expect subtle shifts between yellow green and bluish green when the stone is rotated, a property the cutter considered when orienting the cabochon to present the most desirable hue face up. For technical reference, green tourmaline typically exhibits refractive indices in the range of 1.624 to 1.644, a specific gravity near 3.06, and a hardness of approximately 7 to 7.5 on the Mohs scale, characteristics that inform both setting choices and daily wear expectations.

This specimen has been subject to a controlled heat treatment, a conventional enhancement for tourmaline intended to refine tone and reduce brownish overtones without altering the fundamental crystal structure. Heat treatment in tourmaline is generally performed at moderate temperatures to stabilize color, and when done properly the results are permanent under normal wear conditions. The Natural Gemstone Company documents this enhancement transparently, and our cutters and gemologists can advise on post treatment behavior, such as the absence of color migration under typical lighting, and recommended cleaning methods. Because cabochons present a continuous surface rather than faceted planes, the excellent polish of this piece preserves tactile smoothness while maximizing the stone body color, and the substantial thickness of 9.40 mm ensures durability against accidental contact when set. For jewelry, this weight and dimension suit statement rings, pendant centers, and bespoke pieces that benefit from a domed profile, and secure bezel or tube settings are recommended to protect the girdle and support the cabochon silhouette.

Beyond its technical qualities this green tourmaline carries a lineage of traditional uses that enhance its appeal to discerning buyers. Across cultures green tourmaline has been associated with renewal, abundance, and heart centered energies, and historically artisans used green tourmaline in talismans and ceremonial jewelry for its perceived ability to attract prosperity and to promote emotional balance. Mozambique has emerged as a respected modern source, continuing a regional heritage of producing colored gemstones that have been worked into trade beads and personal ornaments for generations. In the language of collectors, a well cut cabochon like this one speaks to classical lapidary practices that predate modern faceting, where color and internal life were captured in rounded, polished forms meant to be held and admired. The Natural Gemstone Company offers this piece with provenance details and a recommended care guide, and we welcome inquiries about custom settings that respect both the technical requirements of the stone and the historical character that makes green tourmaline a compelling choice for connoisseurs and jewelers alike.