2.83 Ct. Blue Zircon from Cambodia

One transparent 2.83 carat pear shape blue zircon is presented with dimensions of 9.83 x 6.28 x 4.98 mm, cut as a mixed brilliant, clarity graded as very slightly included when evaluated at eye level, color described as medium intensity, polish rated excellent, enhancement by heat treatment, and origin Cambodia. The mixed brilliant faceting accentuates both white light return and colored flashes, producing a lively combination of brilliance and fire. The pear silhouette provides a balanced spread of light from the pavilion to the table, yielding consistent scintillation during movement. The very slight inclusions are minor at typical viewing distances, and the excellent polish ensures clean facet junctions that maximize internal reflection and surface brightness. The heat treatment applied to stabilize and deepen the blue tones is a common and accepted practice, and it enhances the gem without compromising the clarity or the quality of the facet finish. This specimen is cataloged and offered by The Natural Gemstone Company.

Compared with other blue gemstones in its class, this blue zircon stands out for its elevated light performance. Zircon typically exhibits a higher refractive index and stronger dispersion than common alternatives such as blue topaz and beryl varieties, resulting in more pronounced white light return and more vivid spectral flashes. In direct comparison to aquamarine, the zircon presents greater fire and a livelier scintillation, while aquamarine offers a softer, more pastel saturation with lower dispersion. Versus corundum based blues such as sapphire, the zircon shows noticeably greater dispersion and fire, while sapphire delivers deeper color saturation and superior toughness. Spinel can offer excellent brilliance, but zircon generally produces more colorful flashes due to its dispersion characteristics. Given its polish quality and mixed brilliant cut, this 2.83 carat pear blue zircon delivers exceptional surface brilliance and internal fire, making it well suited for jewelry that highlights optical performance. For settings, consideration of protective mounting is recommended to account for differences in hardness relative to corundum, while preserving the gem s reflective attributes and long term appearance.