Seeing through sparklers: What happens to heat-treated diamonds

Sunday, February 15, 2015 - 06:30 in Physics & Chemistry

Diamonds come in all colors with price tags to match -- ice-white, blue and pink attract high prices and stones with brown hues the least. But now that brown diamonds can be heat-treated to remove the darker color to produce near-perfect colorless gemstones, can consumers tell the difference?

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