Transformation of the jewelry market

It’s been a while since jewelry companies last experienced business as usual. On May 24th, Bloomberg reported that Tiffany & Co. shares declined 9.7 percent, the most in more than two years in trading. Shares of Key, Zales and Jared chains owner, Signet Jewelers Ltd. fell 9.1 percent. De Beers’ rough diamond sales went down 18 percent year-over-year. Ri…