Shopping for an engagement ring? Compare the prices of loose diamonds to see which one is the best value. The way to do this is by determining the price per carat. It just requires some simple math: Divide the price for each diamond by the carat weight. Photo: Harold & Erica Van Pelt/GIA. Courtesy: Julius Klein, Ishaia Trading Corp. and Rick Shatz, Inc.
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Carlos Castillo is a graduate from the prestigious Gemological Institute of America (GIA) and the University of New Orleans.