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Tanzanite is still only found on a few square miles of land in Tanzania, near majestic Mount Kilimanjaro.Its price and availability are directly tied to mines in this region.Between its deep blue color and its limited supply, tanzanite is treasured by many – whether one is born in December or not!
Zoisite had been around more than a century and a half before this rare blue variety was found in 1967.
Most faceted tanzanite weighs less than five carats.
Stones heavier than 50 carats are rare, although The Smithsonian Institution’s collection includes a faceted 122.7-carat tanzanite.
Initially, d’Souza thought he was mining sapphire, but the crystal was soon identified as a vibrant blue variety of zoisite – a mineral that had been around since the early 1800s. recognized this blue gem’s potential to rival more expensive sapphire, and agreed to become its main distributor.
Instead of publicizing “blue zoisite” – which sounded a little too much like “suicide” – Tiffany named the gem tanzanite to highlight its exclusive geographic origin, and introduced it with a promotional campaign in 1968.
Buying from a reputable AGS jeweler will ensure that you get what you pay for.