5.33 Ct. Zircon from Madagascar

This 5.33 carat oval greenish blue zircon from Madagascar presents a precise combination of optical and cutting characteristics that will appeal to technically minded collectors and lapidaries. Measuring 10.25 x 7.95 x 6.39 mm, the gem is cut in an oval mixed brilliant configuration that pairs a step style pavilion with a brilliant cut crown to optimize return of light and scintillation. The mixed brilliant layout reduces windowing while preserving depth and face up spread, and the excellent polish on all facets enhances the stone s intrinsic strong dispersion and refractive behavior. Clarity is graded as very slightly included at eye level, and the inclusions are minimal enough to have negligible impact on brilliance, while the intense color intensity indicates strong saturation across the body of the stone. The piece has been heat treated to stabilize and intensify the blue green hue, a standard enhancement in high quality zircon production, and the overall finish and facet junctions display careful craftsmanship consistent with precision cutting aimed at maximizing fire and visual contrast.

In hue and tone this Madagascar specimen sits between the lighter Sri Lankan blue zircons and the electric Cambodian blues, exhibiting a distinctly greenish blue leaning toward a mid to strong tone that retains vibrancy without becoming overly dark. Compared to classic Ceylon aquamarine from Sri Lanka, which typically shows a paler, more watery blue with lower dispersion, this zircon offers greater brilliance and more perceptible fire due to zircon s higher dispersion and refractive index. Against Cambodian blue zircon examples that often push toward an intense, neon like blue, the Madagascar stone shows a slightly greener bias and a more moderated saturation that reads as refined and versatile in jewelry settings. When set beside blue sapphire from Sri Lanka or Kashmir, the zircon remains lighter in tone and more lively in sparkle, rather than velvety or saturated, and when compared to Paraiba style tourmaline, the zircon s tone is less electric and more crystalline, with a distinctive gemological profile defined by high brilliance and birefringent character. Offered by The Natural Gemstone Company, this Madagascar zircon is an exemplary technical specimen for connoisseurs who prioritize cutting precision, optical performance, and a nuanced greenish blue hue.