Lab Grown Diamond Wholesale Prices in 2026: What Buyers Need to Know
If you’ve been watching lab-grown diamond pricing over the past year, you already know the trend: prices have been falling, and falling fast. But the story in 2026 is more nuanced than “prices keep dropping” – and if you’re planning a wholesale order, the details actually matter for how you buy.
What's Actually Happening to Prices Right Now
According to Edahn Golan’s Q1 2026 Lab Diamond Wholesale Price List — one of the industry’s most closely watched pricing benchmarks — global wholesale prices for polished lab-grown diamonds fell 14% year-over-year in the first quarter of 2026. That’s a real, significant decline, but it’s worth putting in context: the pace of decline has meaningfully eased compared to the more-than-40% year-over-year drops recorded throughout 2025.
The decline isn’t uniform across every carat size. Three-carat round diamonds remain the weakest category, down 28% year-over-year — a steep drop, though still an improvement on the even sharper declines seen a year earlier. One-carat rounds fared better, down 15% year-over-year. The pattern is consistent: larger stones, once the biggest profit drivers in this category, have taken the hardest hit as production capacity scaled up faster than premium-size demand.
Why Prices Are Stabilizing for Premium Specifications
Here’s the part that matters most if you’re buying now rather than waiting: by late 2025, premium lab-grown specifications — particularly 1 carat, D-E color, VVS1-VVS2 clarity stones — reached something close to a functional price floor. The years of continuous double-digit annual price drops for these specific specs appear to be over. Prices today increasingly reflect certification choice and retail structure rather than ongoing market instability at the premium end.
This doesn’t mean prices won’t move at all — but the “wait for the next price drop” mindset that made sense in 2023 and 2024 is a less reliable strategy for premium specs in 2026 than it used to be. Larger, lower-demand carat sizes are a different story, and still show real downward pressure.
What This Means If You're Buying Wholesale Right Now
Three practical takeaways, if you’re sourcing lab-grown diamonds at volume this year:
First, the market remains oversupplied. Global production capacity grew over 300% between 2020 and 2023, and wholesale inventory overhangs have reportedly reached 18-24 months of forward demand in parts of the market. That oversupply is exactly why retailers are increasingly buying lean and ordering only what they need, rather than holding deep speculative inventory — a shift worth building into your own purchasing approach if you haven’t already.
Second, this is exactly why working with a supplier whose inventory refreshes frequently matters more than it used to. A supplier quoting you from a price list updated weeks or months ago is quoting you stale numbers in a market moving this fast. Our own live stock table refreshes every 2 days specifically because static pricing doesn’t serve buyers well in a market like this one.
Third, the shift toward fancy color lab-grown diamonds — which we cover in more depth in our next post — is directly connected to this pricing story. As white diamond margins compress under oversupply, retailers and manufacturers are increasingly diversifying into fancy color categories where supply hasn’t been commoditized to the same degree.
A Note on Where This Data Comes From
The figures cited here come from Edahn Golan’s Lab Diamond Wholesale Price List, a benchmark tracked by an analyst with 25 years of diamond-industry experience, alongside reporting from JCK and industry trade data on Indian polished diamond exports. We’ll revisit this post periodically through 2026 as the market develops — pricing conditions this volatile don’t stay accurate for long, and we’d rather update this page than leave stale numbers live.
Want current, live pricing rather than a market average? Our stock table updates every 2 days – browse current inventory or register for trade access to place an order.