• The lab-grown diamond boom is over, jewelry industry experts say.
• Lab-grown gems are mainstream now and real diamonds are back in vogue, analysts told Business Insider.

The man-made diamond boom is over, and prices for ultra-trendy lab-grown diamonds are set to tumble this year, industry veterans say.

Paul Zimnisky, a leading diamond analyst, foresees jewelers scaling back their business in lab-grown diamonds while ramping up their focus on natural diamonds over the next year. In fact, most jewelers don’t even bother to stock lab-grown diamonds in inventory, and are only purchasing them on consignment, he told Business Insider.

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