1.21 Ct. Green Tourmaline from Ceylon (Sri Lanka)

This 1.21 carat round green tourmaline from Ceylon, Sri Lanka combines precise cutting and natural internal character in a gem that reads as both technical and signature. Weighing exactly 1.21 carats with measurements of 7.18 by 7.15 by 4.41 millimeters, the stone has been fashioned in a mixed brilliant cut designed to balance color saturation with lively return of light. The overall clarity is graded as very very slightly included when evaluated at eye level, meaning the gem appears essentially clean to the unaided eye while retaining minute internal features that are visible under magnification. The color is vivid, a deep forest green with a slight cool undertone that remains consistent across the table and pavilion, and the polish is excellent delivering crisp facet junctions and sharp, mirror like facet planes. There has been no enhancement to this tourmaline, ensuring that the observed color and clarity are the result of natural formation and expert lapidary work.

From a faceting and proportion standpoint this tourmaline exemplifies how mixed brilliant geometry can be deployed to maximize the perceived color and optical performance in a moderately deep round. The measured pavilion depth produces a depth to average diameter ratio of approximately sixty one point six percent, a proportion that enhances color saturation without sacrificing scintillation. The mixed brilliant design places a traditional brilliant crown arrangement above a carefully faceted pavilion that incorporates modified brilliant elements, yielding a totality of facets that direct presence of color into the table while preserving strong return of light from the lower facets. Facet symmetry across the crown and pavilion is tight, and the excellent polish minimizes diffusion and allows facet boundaries to act as crisp reflectors, which in turn accentuates the vivid green and produces clean pinpoint highlights. These proportions and the quality of finishing are intentionally chosen by cutters to reconcile rough yield with optimal face up appearance, a balance The Natural Gemstone Company routinely seeks in selecting material for discerning clients.

The internal features of this tourmaline are where the gem asserts an unmistakable signature, and these inclusions are diagnostic of its natural pegmatitic origin. Centrally located beneath the table is a small rounded negative crystal inclusion that, when viewed under magnification, presents as a three phase relic consisting of a minute gas bubble set within a pocket of residual fluid and surrounded by tiny crystalline debris. This central eye like structure is encircled by a subtle radiating network of growth tubes and fine acicular needles that follow crystallographic directions, producing a low relief star like pattern that interacts with the facet architecture. Scattered throughout the pavilion are a few planar reflective platelets and isolated minute crystalline particles that function as internal mirrors, creating small flashes of brilliance when the stone is rotated. In addition there are fine healed feather like fissures whose surfaces have been reconstituted by late stage fluids, and these healed features impart a delicate fingerprint texture that is visible only at magnifications used in gemological inspection. Collectively these inclusions do not compromise structural integrity, they are inherently stable within tourmaline, and they contribute to the gem s individuality by producing localized modulation of color and light that cannot be replicated by synthetic or treated material.

For practical use and appreciation the gem s combination of transparent body, vivid saturation, and signature inclusions makes it ideal for bespoke jewelry where the wearer values natural character. At one point two one carats this round tourmaline fits comfortably into a variety of settings, with four or six prong heads and low to moderate bezel profiles accentuating the stone s face up color while allowing its internal features to be admired through the table. The mixed brilliant faceting ensures lively scintillation in both daylight and artificial illumination, while the excellent polish preserves crisp facet reflections that appeal to collectors who prioritize cutting quality. From a certification and provenance perspective the absence of enhancement and the documented origin in Ceylon support valuation and long term collectability, and the inclusion suite described above serves as a natural fingerprint confirming authenticity. At The Natural Gemstone Company we present this tourmaline as a precisely cut, technically executed gem whose natural inclusions provide an unmistakable signature, and we welcome technical inquiries regarding magnified imaging, mounting recommendations, and comparative material evaluations.