CALIFORNIA GIRL: Jessica McCormack is on the move, with plans to open a second U.S. store at South Coast Plaza . The store will span 1,600 square feet, and is set for a summer 2026 opening.

The London-based diamond jewelry brand opened its first U.S. store in May at 743 Madison Avenue in New York City and, like many British brands, has big ambitions in the booming American market.

The brand has two stand-alone stores in London, an art-filled flagship in a town house on Carlos Place in Mayfair and a 1,300-square-foot store on Sloane Street with neighbors including Tiffany & Co. and Cartier. It also has a space at Harrods.

The U.S. store rollout comes in the wake of an investment last year from Lingotto Horizon , which is owned by the Agnelli family’s Exor holding.

Chief exe

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