Chupi Sweetman is the Irish jewellery designer on a mission to disrupt the diamond industry. The founder and CEO of her eponymous brand has just secured €3.75m in investment to fuel her global ambitions. She speaks about industry trends, removing Russian diamonds from her supply chain and how blockchain will help secure the provenance of her heirloom jewellery. Also in this episode, Barry O'Halloran reports on the yawning gap between what multinationals are paying for energy compared to domestic Irish businesses.

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