Borde most recently worked as global e-commerce vice president of Danone Group, a multinational food-products corporation. He has previously worked at Coty and L'Oréal.
"I am thrilled to join the dynamic team at Lightbox and be part of the fast-evolving category of lab-grown diamonds," said Borde.
"It is a privilege to work with an industry leader that has shaped the space through innovation and transparency.”
He continued: “I believe there is a tremendous opportunity for us to grow an entirely new market in the accessible, fashion jewellery category, and I look forward to helping Lightbox continue to progress the future of lab-grown diamonds."
Borde replaces the out-going Steve Coe, who stepped down from his position as CEO in June. Coe joined the Lightbox project in 2017 after spending more than two decades working with De Beers synthetic diamond manufacturing unit.
Lightbox was established in 2018 and operates out of Portland, Oregon and produces more than 200,000 lab-created diamonds per year. Borde will be based in London during his tenure as CEO.
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