The latest target was 'Rio De Oro Jewelry' in Cypress Hills, Brooklyn.
Police say three men smashed a front window with a sledgehammer, removed multiple items, and then fled.
Police have not yet connected this robbery to similar smash-and-grab robberies at other jewelry stores in Brooklyn and the Bronx, but the owner of Rio De Oro says he has his suspicions.
He says the thieves made off with $150,000 in goods.
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