Rubellite - Brownish, Orangey , or Purplish Pink to Red . " Gemology,
2nd edition by C.S. Hurlbut, jr. & R.C. Kammerling
The following is from Palmieri’s Market Monitor for October 2002
using the GIA Colored Stone Grading System with a GIA Color Master or
equivalent color matching system.
Pink Tourmaline - Hue Red - Orange to Orange - Red, orangy
Red, Red, slightly purplish Red, strongly purplish Red, Red -
Purple to Purple - Red, reddish Purple
Rubellite - Hue the same as Pink Tourmaline while the Tone and
Saturation are closer to the ideal target of medium tone with strong
to vivid saturation .
Cost to retailers from dealers for net cash, single stone.
Pink Tourmaline 1 - 5 ct. $ 75 - 120 $/ct. Very Good Grade
Rubellite 1 - 5 ct. $ 90 - 130 $/ct. Very Good
As You can see, there are a number of variables in grading colored
stones. There are more variables than in grading diamonds . In the
end, the criteria are market driven . You need a Gemologist Appraiser
. The appraisal(s) should also have been done for the same end
market. If You need the appraisal enough to warrant the expense, send
it in to a certified lab , GIA or AGTA .
Robert L.Powell GGS.
I would like some feedback on my input pertinent to this matter .
To my understanding , a gemologist is an intermediary between buyer
and seller, trying to represent fairly and even handedly to both