Diamonds are not forever: The diamond market turns to synthetics

One carat brilliant cut diamond. Credit: MAURO CATEB/CC BY 2.0.

Diamonds are a finite resource, so companies like De Beers are learning to make their own diamonds. These lab-grown stones are chemically and visually indistinguishable from natural diamonds, but they sell for about 30 to 40 percent less. What could this mean for the value of diamonds monetarily and symbolically?