The Diamond Standard Index, tracked on Bloomberg under the ticker DIAMINDX, tumbled to new record lows during the first half of August as a surge in affordable lab-grown stones eroded the scarcity premium underpinning natural diamond prices.
"Technological progress in growing diamonds in labs has been amazing. It's no surprise most engagement rings are now using lab diamonds," X user Crémieux said.
Technological progress in growing diamonds in labs has been amazing.
— Crémieux (@cremieuxrecueil) August 8, 2026
It's no surprise most engagement rings are now using lab diamonds. https://t.co/MZ4zWVlQNq pic.twitter.com/fH1lFYD3Ih
X user Saul Sadka warned that the diamond downturn will likely persist for years as lab-grown stones flood the market:
Expect the collapse in diamond prices to accelerate substantially over the next few years. The natural-diamond market is shrinking in both size and value and circling the drain following the commoditization of its product by modern technology. The same thing happened to pearls 100 years ago, but it will be much worse for diamonds: they will become a signal of bad taste rather than wealth, just as pearls went from high society to a mat
