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Gem trivia: Refractive Index (RI) measures how much light bends in a gem. High RI light bends more than low RI.
 WeightColorSpeciesShapeLengthWidthHeightCommentPrice 
Details 1.60Tri ColorTourmalineSquare6.36.34.7This is a great example of a rare type of tourmaline.$159.00
Details 1.79PinkTourmalineSquare6.56.54.7This is a classic cut with a beautiful pink tourmaline.$159.00