Leibish & Co., unveiled its World of Colors guide for identifying fancy colored diamonds in New York Thursday (January 19). A day earlier, I spoke privately with Leibish Polnauer, the president and ...
When shopping for a diamond, whether for an engagement ring or a piece of fine jewelry, you’ll quickly encounter the term Four Cs—Cut, Color, Clarity, and Carat Weight. These four characteristics ...
In a sunlit office on the 23rd floor of the World Diamond Tower, overlooking the corner where 47th Street runs into Fifth Avenue in New York City, men, occasionally couples and sometimes entire ...
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