The birthstones for those born in December are Tanzanite, Zircon and Turquoise.



2 items filtered by: Oval Cut ×
2.33ct TW 8x6mm Oval Cut Matched Tanzanite Pair Sold out
Stone Type Zoisite- Tanzanite Chemical Composition (Ca2Al3(SiO4)(Si2O7)O(OH)) + (Cr,Sr) Cut Oval Cut Crystal System Orthorhombic Weight 2.75ct TW Hardness 6.5 Dimensions 8x6mm Specific Gravity 3.10–3.38 Colour Violet-Blue Refractive Index 1.69–1.70 Treatment Normal Heating Birefringence 0.006–0.018 Clarity VS Reference Number LG130052...
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