The vast majority of peridot rough produces sub-carat sized stones which in commercial quality are quite inexpensive. Both Sinkakas and Federman agree that stones in the 1- 4 carat range, or those with custom cuts, may command $40/ct. or more, while those over 4 carats increase exponentially in value to $100-150/ ct in largest sizes. The most valuable color for peridot is pure green and so any yellow present decreases the global stone value. The qualities of the peridot color also increase with the size of the stone and small size, top-color peridot is nearly impossible to find.
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