Argentina’s Melo family might be best known for developing a string of Spartan rentals and no-frills condos in downtown Miami and the Edgewater neighborhood. But a company scion is splurging on a double-condo unit in Miami Beach’s iconic Blue Diamond tower.

Carlos Ferreira de Melo, president of Melo Development Inc., scooped up the 3,630-square-foot property on the building’s 34th floor for $3.79 million Feb. 2, public records show. That’s the most for a unit in the building during the current real estate cycle.