2.97 Ct. Green Cabochon Jade from Burma (Myanmar)

This listing describes a finely formed translucent green jade, round shape, weight 2.97 carats, dimensions 9.84 by 9.83 by 3.66 mm, cabochon cutting style, medium color intensity, excellent polish, no enhancement, origin Burma, The Natural Gemstone Company. The piece is presented as a classic cabochon, with a smooth domed crown and a well proportioned pavilion, optimized to reveal internal depth and to maximize the characteristic internal luster of natural Burmese jade. In photographic and loupe inspection the surface presents a continuous mirrorlike finish that carries specular highlights without surface grain or polish marks, which confirms the reported excellent polish grade. The overall color is a medium saturated green, consistent across most of the table area, with modest, natural zoning and faint internal veining that contributes to dynamism when illuminated from multiple angles.

At the structural level this jade exhibits the hallmark microtexture responsible for its unique optical behavior. Burmese jade is most commonly jadeite, a sodium aluminium silicate that forms an interlocking mosaic of fine granular to columnar crystals. That interlocking fabric eliminates obvious cleavage planes and creates a network of very small internal interfaces. Light entering the dome encounters multiple refractive index contrasts at those interfaces, producing diffuse scattering and multiple internal reflections, combined with the intrinsic refractive index of roughly 1.66 to 1.68. The relatively high specific gravity around 3.30 to 3.38 further intensifies perceived color saturation because more mass is interacting with light in a given volume. From a materials perspective the result is not the point like scintillation of a precision faceted gem, but a volumetric, soft luminous effect that I describe as an inner lustre. The microstructure also confers exceptional toughness, which means the cabochon can be set without extreme risk from normal wear stress.

The cabochon geometry is the critical factor that converts that inner structure into an optical phenomenon that many collectors call an unmatched sparkle, although technically it is a different kind of brilliance than faceted scintillation. The domed crown functions as a refracting lens, permitting incident light to penetrate the surface, to be redirected by the intergranular interfaces, and to reemerge as focused flashes and broad zones of glow. Where faceted stones rely on angle controlled total internal reflection, this jade produces depth and movement, with highlights that appear to swim below the surface as the stone is tilted. The excellent polish amplifies the effect, by preserving surface continuity so that light transmission is minimally disrupted, and by sharpening the surface specular highlights that sit above the volumetric glow. In visual terms the cabochon shape creates a layered optical response, with a crisp mirrorlike surface contrast atop a softer internal sheen. If slight chatoyancy or banding is present, the dome will concentrate and orient that effect, producing a narrow reflective band that can be highly prized for its clarity and stability as the piece is rotated.

For practical use the dimensions and proportions make this 2.97 carat round cabochon ideal for a bezel set ring, a pendant focal, or paired mounts in a matching design. The modest thickness of 3.66 mm preserves translucency, allowing light to move through the body while maintaining structural integrity and appropriate weight for fine jewelry. Because the stone is natural and untreated, provenance from Burma increases its appeal to collectors who prioritize natural material and classic origin. When considering fabrication techniques, I recommend a secure bezel with a shallow seat to allow light to enter the pavilion edge, and polished settings in white metal or warm yellow metal depending on whether the client prefers contrast or tonal harmony. For certification and resale purposes, include documentation noting the cabochon cut, measured refractive characteristics, specific gravity if available, and the confirmed absence of enhancement. The Natural Gemstone Company stands behind the description and offers additional viewing images and lighting angles upon request, and our lapidary team can advise on ideal mounting options to showcase this stone most effectively.