The Problem With Diamonds Is They Keep Getting Cheaper
The annual Argyle Pink Diamonds Tender is arranged for a photograph at the Argyle diamond mine. (Photographer: Carla Gottgens/Bloomberg)

The Problem With Diamonds Is They Keep Getting Cheaper

(Bloomberg) -- Five years ago, the diamond industry’s biggest worry was being forgotten by millennials, who — the theory went — didn’t covet sparkly gems the way their parents had.
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