tsavorite

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Photo courtesy of Scott Papper, GIA GG, AJP, CM (NAJA), Global Gemology & Appraisals

Variety:  Tsavorite
Species:  Grossularite
Group:  Garnet
Mohs Hardness:  6.5 to 7.5 out of 10
Color:  Medium to dark green to yellowish green
RI:  1.740 (+0.20 / -0.10)
Birefringence:  None
SR/DR/AGG:  SR
Clarity Type:  Type II
Pleochroism:  None
Spectrum:  Not diagnostic
Fluorescence:  Near colorless to light green stones are inert to weak orange under LW.  Weak yellow-orange under SW.
SG:  3.61 (+0.12 / - 0.04)

tsavorite facts

Photo courtesy of Scott Papper, GIA GG, AJP, CM (NAJA), Global Gemology & Appraisals

Garnets occur in nearly every color.

Tsavorite garnet ranges in color from medium to dark green, to yellowish green, and is most prized in vivid green hues.
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While tsavorite was first discovered in 1967, in Tanzania, it didn't receive broader recognition until 1974, when Tiffany & Co. launched a marketing campaign promoting the gem.

Gem quality tsavorites are rare in sizes over 3 carats, and can be very expensive.
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