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Natural Taaffeite

Taaffeite is one of the rarest and most desirable of collector's stones. Only a very few stones have been found, most of them originally misidentified as spinel. Sri Lanka and Tanzania appear to be the only sources for this material this time. However, because of the geological connection between the deposits in Sri Lanka, Madagascar, and East Africa, we expect to find the stones in Madagascar as well.

  • There are 24 Taaffeite gemstones available at
  • Taaffeite(s) are organized in the following categories: PairSingle,  gemstones.
  • Our most expensive Taaffeite is USD 21735.00 and largest Taaffeite weight is CTS 3.45.
  • Our cheapest Taaffeite is USD 129.60 and smallest Taaffeite weight is CTS 0.18.

Find your Taaffeite

Our Taaffeite(s) are available in various shapes, sizes and colors. 24 Taaffeite(s), too many to look through? You may select any combination of search options. Colors grade into each other and you can search for more than one color at once. For a better selection, try selecting two or three colors, -- your first choice plus the two closest colors.

Shape Length (mm) Width (mm)
Category Weight (cts) Price (USD)
Color range
bluish purple
bluish violet

Taaffeite Profile

Color information: Mauve, reddish violet, brownish-purple, pink, red, blue.
Refractive Index: 1.71-1.72.
Chemical Composition: Beryllium magnesium aluminate wi
Hardness: 8 - 8.5
Density: 3.60 - 3.71
Crystal Group: Hexagonal
Ocurrence: Tunduru, Tanzania; Sri Lanka
Sign of the Zodiac: N/A
Month of the year: N/A
In 1945, Count Taaffe, a Dublin gemologist found a pale mauve stone in a jewelers junk box that resembled spinel in appearance and properties but showed distinct double refraction. The stone was sent to the British museum for testing where they determined it to be an unknown mineral. Although its refractive index is nearly the same as spinel, it can be differentiated by its double refraction and uniaxial negative character.

Despite diligent search, it was not until 1949 that another stone was found in a parcel of stones from Sri Lanka. A third stone was found in 1957 by Robert Crowningshield of GIA and a fourth stone some 10 years later. Since then, more gemologists have been aware of taafeite and stones continue to be discovered. We discovered some taafeites in our mine run material from Tunduru, Tanzania and have started re-checking all our stones especially the spinels for any evidence of double refraction which with the correct refractive index would confirm their identity as taafeite.

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Finest gems/
Alexandrite Single
From our finest gemstones collection
Alexandrite Single Oval Eye clean
Size: 8.70 X 8.02 MM
Weight: 3.330 CTS
Shape: Oval
Clarity: Eye clean
Usually ships within 24 hours
USD 93240.00

Deal of the Day/
Chrome Tourmaline Single
limited time offer, ref# YCH535aa
Chrome Tourmaline Single Trillion Eye clean
Size: 7.50 X 7.50 MM
Weight: 1.610 CTS
Shape: Trillion
Clarity: Eye clean
Usually ships within 24 hours
10 % OFF, YOU SAVE 24.15 USD
USD 217.35

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Gemstone Variety: Hits Index
Going Down Sapphire -129 -0.1%
average price USD 329.11 per item
Going Down Alexandrite -43 -0.1%
average price USD 2144.07 per item
Going Down Tanzanite -2068 -3.5%
average price USD 550.31 per item
Going Down Spinel -72 -0.2%
average price USD 513.36 per item
Going Down Aquamarine -65 -0.2%
average price USD 352.51 per item
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