Tanzanite
I've always been a real fan of Tanzanite. As there are very few gems that display such a vibrant blue colour. But did you know that tanzanite is in actual fact blue zoisite. Tiffany's and Co. first started calling this gemstone Tanzanite, as they thought it would make it easier for them to market. They were absolutely right, Tanzanite is now the highest selling blue gemstone after Sapphire.
The first commercial deposits of Tanzanite were discovered as recently as 1960, in the foothills of Mount Kilimanjaro, Tanzania. Deposits were found over a minute 8 kilometre area. It's meteoric rise to success sees these deposits depleting rapidly, hence the exponential rise in price in recent years.
Small traces of vanadium within the mineral structure are what gives Tanzanite it's blue colour. The pleochroic nature of Tanzanite means that it's colour can change depending on which angle it is viewed from. Some specimens can appear to be blue from one angle, and violet to red from another.
Tanzanite 15x13mm Oval Cabochon
Tanzanite 15x13mm Oval Loose Gemstone Cabochon 8.5 mm profile 17 ct/ 3.4 g ..
£45.25
Tanzanite 17x13mm Oval Cabochon
Tanzanite 17x13mm Oval Loose Gemstone Cabochon 7.5 mm profile 17.5 ct/ 3.5 g ..
£46.50
Tanzanite Oval Cabochon
Tanzanite17x13mm Oval Loose Gemstone Cabochon8.5mm profile18.5 ct/ 3.7 g..
£49.25
Tanzanite 10.6x7mm Oval Faceted Gemstone
Tanzanite 10.6x7mm Oval Faceted Loose Gemstone 4.7 mm profile 2.80 ct / 0.56 g ..
£48.99
Tanzanite 11x6mm Rectangular Faceted Gemstone
Tanzanite 11x6mm Rectangular Faceted Loose Gemstone 3.5 mm profile 2.70 ct / 0.54 g ..
£47.25
Tanzanite 4mm Round Faceted Gemstone
Tanzanite (A grade)4mm Round Faceted Loose Gemstone 2.3mm profile, approx 0.25 ct / 0.05 g..
£19.99
Tanzanite 4mm Round Faceted Gemstone Pair
Tanzanite (A grade)4mm Round Faceted Loose Gemstone Pair2.3mm profile, approx 0.50 ct / 0.10 g,..
£37.99
Tanzanite 4mm Round Faceted Gemstone x 3
Tanzanite (A grade)4mm Round Faceted Loose Gemstone x 32.3mm profile, approx 0.75 ct / 0.15 g, ..
£54.00
Tanzanite 4mm Round Faceted Gemstone x 4
Tanzanite (A grade)4mm Round Faceted Loose Gemstone x 42.3mm profile, approx. 1.00 ct / 0.20 g,..
£68.00
Tanzanite 4mm Round Faceted Gemstone x 6
Tanzanite (A grade)4mm Round Faceted Loose Gemstone x 62.3mm profile, approx. 1.50 ct / 0.30 g,..
£90.00
Tanzanite 7x5mm Emerald Cut Gemstone
Tanzanite 7x5mm Emerald Cut Loose Faceted Gemstone 3.8 mm profile 1.35 ct / 0.27 g&nb..
£23.60
Tanzanite 8.4x5.4mm Drop Cut Faceted Gemstones
Tanzanite 8.4x5.4mm Drop Cut Faceted Loose Gemstone 2.7 mm profile 0.90 ct / 0.18 g&n..
£15.75
Tanzanite 8.7x7mm Oval Faceted Gemstone
Tanzanite 8.7x7mm Oval Faceted Loose Gemstone 4.3 mm profile 1.80 ct / 0.36 g ..
£31.50
Tanzanite 8.8x6.6mm Oval Faceted Gemstone
Tanzanite 8.8x6.6mm Oval Faceted Loose Gemstone 4 mm profile 1.90 ct / 0.38 g ..
£33.25
Tanzanite 8.8x7.3mm Oval Faceted Gemstone
Tanzanite 8.8x7.3mm Oval Faceted Loose Gemstone 3.5 mm profile 1.85 ct / 0.37 g ..
£32.50