Gemstone Guide2026-06-24
Tanzanite: Meaning, Colours, and the Gem Found in Only One Place on Earth
Tanzanite is the velvety blue-violet gem discovered in 1967, named by Tiffany, and December's newest birthstone. It is also the rarest mainstream gemstone there is, because it comes from a single small patch of ground at the foot of Kilimanjaro and nowhere else on the planet. Here is the honest guide to what tanzanite means, its real colour range and trichroism, why almost every stone is heated, how soft and fragile it really is, why it joined December in 2002, what it is worth, and how to buy it without overpaying or breaking it.
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