Diamonds crash to lowest prices this century as Bitcoin surges past them

Natural diamond values have slid to levels not seen in over two decades, with wholesale prices sitting roughly 30-40% below their 2021 peaks.

Retail prices for a mainstream 1-carat natural round diamond now land between $3,530 and $3,860. It’s a structural unraveling driven by three forces hitting simultaneously: oversupply, weakening demand, and a flood of lab-grown stones that are chemically identical but 70-85% cheaper.

The lab-grown avalanche

Wholesale prices for synthetic stones have collapsed more than 75% from 2022 levels. Since March 2025 alone, lab-grown diamond prices have dropped 29.9%, compared to a 4.0% decline for natural stones of similar quality during the same window.

China accounts for more than 60% of global synthetic diamond output. Chinese exports of lab-grown diamonds surged 65.3% year-on-year in the first half of 2026.

The result is a two-tier squeeze. Lab-grown prices are in freefall, which drags down the perceived value of mid-tier natural diamonds that compete in overlapping consumer segments. Only the largest, highest-quality natural stones have shown resilience.

Mining economies feel the pain

Debswana, the joint venture between De Beers and Botswana’s government, has reported severe sales declines. For a country where diamond mining has historically been a cornerstone of GDP, that’s not a line item problem. It’s a fiscal crisis in slow motion.

Bitcoin’s contrasting trajectory

The comparison isn’t perfect, of course. Diamonds were never truly fungible. A 1-carat stone with VS2 clarity isn’t interchangeable with another of the same weight but different cut, color, or inclusion pattern.

Bitcoin is perfectly fungible. One BTC is one BTC. It’s also verifiably scarce, with a hard supply cap of 21 million coins, a property that diamonds claimed through marketing but that lab-grown production has now exposed as economically, if not geologically, fictional.

What to watch next

The key variable is whether Chinese lab-grown production continues to scale. A 65.3% year-on-year export increase suggests the market hasn’t found equilibrium yet.

For natural diamond miners, the hope rests on the top end of the market. Rare, large, high-color, high-clarity stones still command premium prices because no factory can replicate the psychological appeal of a 5-carat flawless natural diamond. But that’s a shrinking addressable market.