Natural Blue Zircon | 5mm Faceted Round Pair | ZC103
Natural Blue Zircon | 5mm Faceted Round Pair | ZC103
Blue Zircon is one of the oldest and most optically brilliant natural gemstones available to jewelry designers, with a history of use in fine jewelry spanning centuries. Zircon is not to be confused with cubic zirconia — it is an entirely natural mineral, a zirconium silicate with a crystal structure that produces an exceptionally high refractive index and strong dispersion, giving it a fire and brilliance that rivals even diamond. The vivid blue color seen in gem-quality zircon is typically the result of heat treatment, a widely accepted and stable enhancement in the gemstone trade that has been standard practice for decades and does not diminish the stone's natural origin or long-term durability. Natural blue zircon of this quality and color saturation is increasingly difficult to source as fine material becomes more scarce in the global market.
This matched pair of 5mm round zircons has been cut to an exceptional standard, maximizing the stone's natural light return and showcasing the signature brilliance and subtle doubling effect — known as birefringence — that is unique to zircon and impossible to replicate in any simulant. Minor natural inclusions are present, which is not only typical of natural zircon but serves as an important authenticity marker, as truly flawless blue zircon of this size warrants additional scrutiny. The inclusions do not impact the face-up beauty of the stones and are consistent with the character expected of a genuine, earth-mined gemstone. At 5.5mm, this pair is ideally sized for earring work across a wide range of settings and styles.
DETAILS
Origin: Unknown
Species: Zircon
Variety: Blue Zircon
Cut: Faceted Round
Size: 5mm x 5mm x 4.3mm
Weight: 2 cts total (pair)
Sold: Per Pair
Treatment: Heat Treatment
Hardness: 6.5 – 7.5 (Mohs)
Refractive Index: 1.925 – 1.984
Materials: Natural Zircon.
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