Berkshire Hathaway, the conglomerate run by businessman Warren Buffett, reported its operating earnings in its most recent quarter jumped more than 40% from a year ago but posted its first net quarterly loss in a year.

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Many Lab-Grown Diamonds Have Cloudy Sustainability Claims
Lab-created diamonds come with sparkling claims: that they are ethically made by machines running on renewable energy. But many don't live up to these claims or don't respond to questions about their electricity sources, and lab diamonds require a lot of electricity.
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