“Lab-grown diamonds (also known as lab created diamonds, man-made diamonds, engineered diamonds, and cultured diamonds) are grown in highly controlled laboratory environments, using advanced ...

“Sales of lab-created diamonds, now estimated at $150 million, are expected to increase to $1 billion by 2020 and outpace mined diamonds, which have been in decline.” ...

Lab-grown diamonds, by contrast, are cheap manufactured substitutes whose value is “tied strictly to the cost of production” and therefore have no lasting value. With the most to lose ...