Blue Zircon
$135.00
Item number:
1
Blue Zircon 6.2 x 5 x 4.5mm 1.38 CT Brilliant Facet Oval From Cambodia Grade A++
Blue zircon is a natural, highly brilliant gemstone made of zirconium silicate. It is celebrated for its vivid cerulean and greenish-blue hues. Renowned for its fire and double refraction that rivals diamonds, it is one of the official birthstones for December.
Key Characteristics
- Color: Ranging from light pastel blue to intense, vivid cyan with slight green undertones. Most blue zircons are heat-treated to achieve these colors.
- Fire & Sparkle: Zircon has a very high refractive index, meaning it splits light efficiently to create an intense, rainbow-like sparkle.
- Durability: With a Mohs hardness rating of 7 to 7.5, it is suitable for everyday jewelry, though it is slightly brittle and prone to facet abrasion.
- Value: It is often considered an undervalued gem compared to sapphires, despite its superior optical properties.
Comparison: Zircon vs. Cubic Zirconia
Blue zircon is frequently confused with cubic zirconia (CZ). However, zircon is an entirely natural mineral found in the earth, whereas CZ is a lab-created synthetic.
Sourcing & Care
Most gem-quality blue zircons are mined in Cambodia, Sri Lanka, Thailand, and Tanzania. Because the gem can be brittle, protect it from hard impacts and clean it with warm, soapy water rather than steam or ultrasonic cleaners.