Diamonds, Including Man-Made, the Focus at Borsheims

There was ping-pong and bridge with Bill Gates, shiny stones with the Oracle of Omaha’s signature on the girdle and lab-grown diamonds. The man-made stones were among the offerings jeweler Borsheims had during parent company Berkshire Hathaway’s annual shareholder weekend, which took place last weekend in Omaha. The retailer has been very quietly carrying man-made diamonds since November, mixing in fashion pieces from Swarovski, which started selling jewelry set with lab-grown diamonds in 2016, with bridal rings from a company called ALTR.