Why the baguette-cut diamond is baking hot again

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The baguette — not a bag or a loaf of bread but a gemstone — is transitioning from support act to star of contemporary jewellery. The cut is an evolution of the 15th-century “hogback” diamond, famously set into Mary of Burgundy’s 1477 engagement ring. Cartier was using baguette-cut diamonds as early as 1908, but the baguette as we know it best — the…