- Stone13
- Reports4













2.28 Ct. Paraiba Tourmaline from Mozambique
This loose stone is available to ship now
Item ID: | K18562 |
|---|---|
Dimensions (MM): help | Length: 9.01 Width: 7.42 Height: 5.29 |
Weight: | 2.28 Ct. |
Color: help | Greenish Blue |
Color intensity: help | Medium |
Clarity: help | Included |
Shape: help | Oval |
Cut: | Mixed Brilliant |
Cutting style: | Faceted |
Enhancements: help | Oil/Resin Treated |
Origin: help | Mozambique |
Per carat price: help | $11,550 |
The Natural Gemstone Company presents a rare Green Blue Paraiba tourmaline, AGL certified, weighing 2.28 carats, and cut into a classic oval shape. The gem measures 9.01 by 7.42 by 5.29 mm, and displays a medium color intensity within the greenish blue range that characterizes Mozambique Paraiba material. The cutting style is a mixed brilliant cut, selected to maximize both color saturation and light return, and the polish has been evaluated as excellent, producing crisp facet junctions and lively surface scintillation. Clarity is graded as included, evaluated at eye level, which means that natural internal features are visible under close inspection but do not detract from the overall appeal when set. Enhancement has been performed by oil and resin treatment, a stable and commonly accepted practice for Paraiba tourmalines, and the origin is documented as Mozambique on the accompanying AGL report. The Natural Gemstone Company provides the certificate with every sale, ensuring full documentation of the gem provenance, treatments, and measured specifications for collectors and connoisseurs.
The mixed brilliant oval cut of this Paraiba tourmaline is executed with technical precision to balance color and brilliance. Mixed brilliant conventions typically employ a brilliant faceted crown paired with a pavilion that incorporates step style facets, and in this specimen the cutter has emphasized medium to deep pavilion angles to concentrate the greenish blue hue without producing a pronounced window. The physical proportions yield a calculated depth of about 64.4 percent, derived from the measured 5.29 mm depth relative to the average of the length and width 8.215 mm, and this depth percentage contributes to solid face up color while maintaining a pleasing spread on the finger. Facet symmetry is tight, with well centered culet alignment and consistent facet size across opposing facets, resulting in uniform light return and predictable extinction patterns. The excellent polish indicates that the facet planes are free of polishing grit and surfacing lines, ensuring maximal reflection and minimizing surface diffusion. Attention to girdle finishing and pavilion termination during cutting reduces potential inkiness along the edges and supports durable mounting options for fine jewelry settings.
Color and material science are central to evaluating this greenish blue Paraiba. The medium intensity classification reflects a balance between saturation and tone that delivers lively color without overpowering darkness. Mozambique Paraiba tourmalines typically derive their vivid hues from trace copper and occasional manganese, and in this stone the hue balance leans slightly toward green in daylight balanced illumination, producing a complex green blue that adapts subtly with angle and light source. Mixed brilliant cutting aids in even color distribution, controlling windowing by narrowing large table facets while allowing crown brilliance to animate the surface. The AGL certification confirms both the copper bearing classification consistent with Paraiba type chemistry and Mozambique origin, which is important for value and market position. The oil and resin enhancement used here fills surface reaching fissures and increases apparent transparency and resilience, while remaining a reversible and well documented treatment. Buyers should note that treated stones require considerate handling, and our specialists at The Natural Gemstone Company can advise on settings and care to preserve optical performance and treatment stability.
Inclusions in this stone are considered unique identifiers that contribute to its natural character and forensic traceability. The clarity grade of included, observed at eye level, indicates the presence of internal features such as oriented growth patterns, narrow tube like growth voids, and occasional minute mineral crystals, all of which are typical of Mozambique sourced tourmaline. These internal structures serve as a fingerprint for the specimen, offering evidence of natural formation processes and providing gemologists with markers that can be mapped and photographed for future reference. In practice these inclusions interact with light in ways that enhance perceived texture and depth, sometimes producing localized scattering that emphasizes vivid color zoning, and they confirm the stone is a natural gem rather than a synthetic product. For practical use, inclusions that reach the surface were addressed by careful oil and resin treatment during finishing, which stabilizes delicate terminations and improves durability for everyday wear. The Natural Gemstone Company includes high magnification imaging on request, and our team can provide guidance on maintenance, recommending gentle cleaning with warm soapy water, avoiding thermal shocks and harsh chemicals, and skipping ultrasonic or steam cleaning methods for treated pieces. For the discerning buyer who values documented origin, precise cutting geometry, and the natural story told by inclusions, this 2.28 carat AGL certified Mozambique Green Blue Paraiba tourmaline represents both a scientific curiosity and a wearable gem, and our specialists are available to provide additional data, custom mounting options, and certification copies to finalize acquisition.
























