The Gem Discovered in a Jeweller's Box
Taaffeite has one of the most unusual discovery stories in gemology. In 1945, gemologist Count Edward Taaffe was sorting through cut stones in Dublin when he noticed that one "spinel" behaved differently under the light — it was doubly refractive, which spinel is not. Analysis proved it was an entirely new mineral. It is the only gem first identified from an already-faceted stone, and that original stone came from Sri Lanka.
What It Looks Like
Taaffeite is usually a delicate mauve, lavender, violet, or pale pink, transparent and glassy, with a hardness around 8 — durable enough for jewellery. Sri Lanka remains one of its very few sources.
Why It's So Rare and Valuable
- Extreme rarity — for years only a handful of stones were known; it remains millions of times rarer than diamond.
- Easily confused with spinel — which is exactly how it hid for so long.
- Collector demand — fine taaffeites command very high per-carat prices.
A Note for Buyers
Because taaffeite so closely resembles spinel, only laboratory testing can confirm it. Never pay a taaffeite price without independent certification — see our buyer's guide.
See the Source
Explore the island that gave the world this gem — browse Ratnapura accommodation and the Island of Gems overview.