A 101.41-carat D Color Internally Flawless pear-shaped diamond sold for more than $12.9 million at Sotheby’s New York Magnificent Jewels sale Thursday. The auction house says the result places the gem ...
Tsukuba, Japan - Researchers from the Department of Applied Physics at the University of Tsukuba demonstrated second-order nonlinear optical effects in diamonds by taking advantage of internal color ...
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