The man with the diamond dream

Image: De Beers

Stephen Lussier was chomping at the bit as he sat on stage during a 2019 diamond conference in Dubai. Dressed in his trademark cream suit, he slid toward the edge of his seat as he waited his turn to speak, confident in his ability to unbundle everything his fellow panelist was saying to prop up lab-grown diamonds against the natural product.

“I couldn’t disagree more,” L...