Gemstone Spotlight
What buyers should know about tanzanite before requesting it — origin, appearance and typical sourcing considerations.
5 min read
Tanzanite is found in a limited area of northern Tanzania, which makes availability and grade more variable than for gemstones mined across multiple regions.
Colour depth — from lighter violet-blue to intense saturated tones — is the primary factor buyers weigh, alongside clarity and, for cut stones, the precision of the finished cut.
Because tanzanite availability fluctuates with mining conditions, buyers requesting it should expect lot-by-lot variation and should confirm exact specifications before committing to a purchase.
Frequently Asked
Tanzanite is mined in a limited area of northern Tanzania, making it a single-origin gemstone rather than one found across multiple African regions.
Because it is mined in one limited area, supply and grade fluctuate with mining conditions and current lots, more than with gemstones sourced from broader regions.
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