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Zircon

📏 7.3 mm

⚖️ 1.97 ct

🌱 Natural zircon

Queensland, Australia

Cut and polished in Thailand

🔹 Traditionally heat treated.

Sourced through our partner, Capricorn Gems

🤝 Responsibly sourced through Nineteen48's trusted supply chain

A pale blue zircon, responsibly sourced from an artisanal mine in Australia. This stone has been heated.

SKU AU-QU-ZRC-000722
Original price £660.00 - Original price £660.00
Original price
£660.00
£660.00 - £660.00
Current price £660.00
Only one available

Zircon is one of the oldest known minerals from the earths crust. It occurs in almost every colour and has a fire similar to diamond. 

Nineteen48’s zircons are responsibly sourced from a small network of artisanal mines around Ratnapura in Sri Lanka and from small scale miners, Capricorn Gems based in Queensland, Australia. 

Queensland is the second-largest state in Australia, located in the north-east of the country. Most of the gemstone mining is either artisanal or small-scale (ASM), run by individuals or partnerships.

Queensland is known to produce sapphire, zircon, chrysoprase, topaz and boulder opal.

The mining operations adhere to all the relevant laws and regulations as set out by the Queensland Government Department of Mines.

Nineteen48 offers a selection of beautiful Australian gemstones through its trusted partner, Capricorn Gems, led by Ian Bone.

Specialising in responsibly sourced stones from Queensland, Capricorn Gems focuses on four main varieties: sapphire, opal, zircon, and chrysoprase.

The gemstones are typically cut and polished at a dedicated workshop in Thailand to ensure exceptional quality.

Capricorn Gems sapphires come mainly from Central Queensland, west of the town of Emerald, in a remote region that includes the small communities of Anakie, Rubyvale, and Sapphire. This area is sparsely populated, and most of the mining is carried out by individual miners, families, or small partnerships. All operations are regulated by the Queensland Government’s Department of Mines, ensuring responsible and safe practices.

Gemmological Info

Composition: ZrSiO₄ (zirconium silicate)
Crystal system: Tetragonal
Hardness: 7.5 (6 for low type)
Cleavage: Poor
Fracture: Conchoidal
Lustre: Vitreous, subadamantine
Specific Gravity (SG): 4.65–4.73 (3.90–4.10 low type)
Refractive Index (RI): 1.923–2.024 (1.780–1.850 low type)
Birefringence: 0.036–0.059 (0–0.005 low type)
Optical nature: Uniaxial (+)
Dispersion: 0.039