Book Appointment
If you're a jeweler, retailer, or designer sourcing lab-grown diamonds, understanding lab grown diamond wholesale pricing in 2026 is not optional — it's the difference between healthy margins and getting squeezed. Wholesale prices have moved dramatically over the past five years, and 2026 is shaping up as a pivotal year. Prices are finally stabilizing after years of freefall, but the landscape is more complex than a single number on a price sheet.
This guide breaks down exactly where wholesale prices sit today, how they got here, what margins you should target, and where things are headed for the rest of the year. No fluff — just the numbers and context you need to buy smart.
Where Wholesale Prices Stand Right Now
Let's start with the hard data. As of early 2026, the wholesale price of a 1-carat round lab-grown diamond sits in the range of $150–$400 per carat depending on quality, certification, and growth method (CVD vs. HPHT). That's wholesale — what you as a retailer pay before any markup.
On the retail side, a 1-carat round IGI-certified lab-grown diamond is averaging roughly $650–$725, with ovals and cushions tracking slightly higher in the $636–$675 range. Two-carat rounds are retailing around $1,247–$1,700, and 3-carat stones hover between $1,785 and $2,100.
These retail numbers, tracked by indices like StoneAlgo, represent what end consumers pay at major online retailers. The gap between those numbers and your wholesale cost is where your margin lives — and that gap is still substantial if you're buying right.
At Guru Diam, we publish live wholesale pricing with real-time updates across our full inventory of 11,000+ IGI and GIA certified diamonds, so you're never guessing where the market actually sits.
Wholesale Price Reference Table: 2026 Ranges by Carat and Quality
Here's a realistic snapshot of wholesale price ranges for round brilliant lab-grown diamonds in early 2026. These reflect B2B pricing for IGI-certified stones — what a qualified retailer or jeweler should expect to pay.
| Carat Weight | Good (I-J, VS2-SI1) | Very Good (G-H, VS1-VS2) | Excellent (D-F, VVS1-VVS2) |
|---|---|---|---|
| 0.50 ct | $80–$130 | $130–$200 | $200–$320 |
| 1.00 ct | $150–$250 | $250–$400 | $400–$650 |
| 1.50 ct | $250–$420 | $420–$680 | $680–$1,050 |
| 2.00 ct | $380–$620 | $620–$950 | $950–$1,500 |
| 3.00 ct | $550–$900 | $900–$1,400 | $1,400–$2,200 |
Note: Ranges reflect round brilliant cuts with IGI certification. Fancy shapes may vary. Prices shift based on fluorescence, growth method (CVD vs. HPHT), and supplier. Data synthesized from wholesale market activity and Edahn Golan's Lab Diamond Wholesale Price List.
These numbers are directional — your actual cost depends on volume, supplier relationships, and how close to source you're buying. Guru Diam's CSV and API stock downloads give you live, transparent pricing across every SKU, so you can run your own margin calculations in real time rather than working off stale price sheets.
Price Trends: The 2021–2026 Journey
To understand where we are, you need to see where we've been. The price trajectory for lab-grown diamonds over the past five years has been nothing short of dramatic.
2020–2021: A 1-carat lab diamond averaged around $3,410 at the start of 2020 and had declined roughly 18% by the end of 2021, landing near $2,800. Supply was growing, but demand was growing too. Lab-grown diamonds captured about 6% of engagement ring sales.
2022: The floodgates opened. Chinese and Indian producers scaled CVD and HPHT production aggressively. By end of 2022, the average 1-carat price had dropped another 36% from the 2020 baseline, sitting around $1,800. Inventory began piling up across the supply chain.
2023: The correction accelerated. Wholesale prices fell another 33% year-over-year. Inventory overhang reached 18–24 months of forward demand. Many suppliers were cutting prices just to move stock. Average 1-carat retail pricing dropped to approximately $1,200.
2024: Prices continued falling but the pace started to slow. A further 26% year-over-year decline brought the average 1-carat retail price to roughly $892 by year end.
2025: According to Edahn Golan's research, wholesale prices fell 26% year-on-year in 2025. But the critical detail: quarterly declines slowed to just 4.7% — the smallest quarterly drop since lab-grown diamonds entered the market. For 1.50-carat goods specifically, prices actually rose 11% from Q3 to Q4. Smaller stones saw wholesale price increases of 10–20% as HPHT rough costs firmed up.
2026 (so far): The market is entering a stabilization phase. Quarterly volatility has compressed. Some carat categories are flat or slightly up; others are still softening at low single-digit rates. The era of 30%+ annual declines appears to be over.
In total, lab-grown diamond prices have declined approximately 74% from January 2020 to early 2026, according to Draco Diamond's price trend analysis. That's a staggering shift — but the rate of change is what matters now, and it's clearly decelerating.
Retail Markup and Margin: What Smart Jewelers Are Targeting
Here's where the conversation gets real. Wholesale prices have collapsed, but retail markups have not fallen proportionally. According to BriteCo's 2025 industry report, US retailers maintained average gross margins of approximately 74% on 1–3 carat lab-grown diamonds through 2025. Some legacy retailers were marking up 250–300% above wholesale cost, and major online retailers were charging $800–$1,200 for stones with a wholesale cost around $191 per carat — a markup of 300–500%.
That's the current reality. But is it sustainable? Increasingly, no.
Recommended Margin Targets for 2026
Here's our honest guidance for retailers and jewelers:
- Entry-level and commercial goods (0.50–1.00 ct, Good-Very Good): Target 2.5x–3.5x wholesale cost. These are high-volume, price-sensitive categories. Consumers comparison-shop aggressively here.
- Mid-range (1.00–2.00 ct, Very Good-Excellent): Target 2.0x–3.0x wholesale cost. This is the engagement ring sweet spot. Your value proposition and service matter more than rock-bottom pricing.
- Premium and larger stones (2.00+ ct, Excellent): Target 1.8x–2.5x wholesale cost. Buyers in this range are more educated and more likely to cross-reference pricing. Transparency wins.
- Custom and designer settings: This is where your real margin upside lives. Settings, custom design work, and fabrication fees can carry 50–65% gross margins. As diamond margins compress, your metalwork and design become the profit center.
The key insight: as wholesale diamond costs continue to fall, the smart play is shifting your margin strategy. Build your brand around service, design, and trust — not diamond markup. The retailers who thrive in 2026 will be the ones who use lower diamond costs to deliver more impressive pieces at accessible price points while making their real margin on craftsmanship.
What's Driving Wholesale Prices in 2026
Several forces are shaping lab grown diamond wholesale pricing in 2026. Understanding them helps you anticipate where prices move next.
Production Economics Are Tightening
Chinese HPHT producers — who dominate the sub-1.5 carat market — collectively stopped cutting prices once rough costs hit approximately $10 per carat, as reported by Edahn Golan. There's a production cost floor emerging, and we're near it for smaller stones. This is why wholesale prices for smaller goods actually ticked up 10–20% in late 2025.
CVD vs. HPHT Dynamics
HPHT dominates for polished stones of one carat and below and is increasingly common in the 1.5-carat range. Most diamonds of two carats and above are CVD-grown. HPHT stones typically trade at a discount to CVD at equivalent specs. As a buyer, knowing the growth method of your inventory matters — it affects both your cost basis and your customer's perception.
Market Maturity and Demand Growth
Lab-grown diamonds now account for over 45% of US engagement ring purchases, up from just 6% in 2019, according to BriteCo data reported by the Rio Grande Guardian. The global market was valued at $29.73 billion in 2025 and is projected to reach $33.94 billion in 2026, growing to approximately $108.98 billion by 2035 at a 13.87% CAGR, per Precedence Research. Demand is still growing — but the explosive early-phase growth is normalizing.
GIA's Shifting Stance
The GIA has moved toward grading lab-grown diamonds in larger commercial groupings rather than individual quality scales — a signal that the industry views these stones increasingly as a commodity. For retailers, this means certification rigor matters more than ever. Sourcing IGI and GIA certified stones from a transparent supplier protects you from the commodity trap.
How to Buy Wholesale in 2026: Practical Guidance
If you're a retailer or designer looking to source lab-grown diamonds at true wholesale in 2026, here's what matters:
1. Demand live pricing. Static price sheets are outdated by the time you receive them. The market moves weekly. Guru Diam offers real-time pricing updates and a WhatsApp broadcast for daily pricing alerts — because in this market, timing matters.
2. Buy certified. IGI and GIA certification is non-negotiable for maintaining consumer trust and justifying your retail pricing. Guru Diam stocks 11,000+ certified stones specifically so you never have to compromise.
3. Diversify your carat mix. Don't over-index on 1-carat rounds. The 1.5–2.0 carat range is where consumer interest is surging (bigger stones at accessible prices is the entire lab-grown value proposition). Larger stones also carry better absolute margin dollars even at lower percentage markups.
4. Integrate live data into your workflow. If you're still manually checking prices, you're leaving money on the table. Guru Diam's CSV and API downloads let you pull live inventory and pricing directly into your own systems — POS, e-commerce, or custom tools.
5. Build a supplier relationship, not just a transaction. In a volatile pricing environment, having a supplier who communicates proactively about market moves is worth more than saving a few dollars per carat on a single order.
Lab Grown Diamond Price Trends: What to Expect for the Rest of 2026
Based on current market dynamics, here's our outlook:
- Sub-1 carat: Prices likely to hold steady or edge slightly higher. HPHT production cost floors are real, and demand remains strong in the fashion and everyday jewelry segment.
- 1–1.5 carat: Relative stability. This is the most liquid segment of the market. Expect modest fluctuations, not dramatic moves.
- 2+ carat: Some continued softening is possible as CVD production efficiency improves for larger stones. But the pace of decline will be far slower than 2022–2024.
- Overall market: The era of 20–30% annual wholesale price drops is likely behind us. Plan for low single-digit annual declines or near-flat pricing through year end.
For retailers, this stability is actually good news. It means your inventory holds value better, your margin planning is more predictable, and you can stock deeper without as much downside risk.
Frequently Asked Questions
What is the average wholesale price of a 1-carat lab-grown diamond in 2026?
As of early 2026, a 1-carat round brilliant lab-grown diamond wholesales between $150 and $650, depending on quality grade (color, clarity, cut) and certification. IGI-certified stones in the D-F, VVS range command the higher end; commercial-quality goods (I-J, SI) sit at the lower end.
How much have lab-grown diamond prices dropped since 2021?
Lab-grown diamond prices have declined approximately 70–75% since 2021. A 1-carat stone that retailed around $2,800 at the end of 2021 can now be purchased at retail for $650–$725, with wholesale costs even lower. The steepest drops occurred in 2022 and 2023, with the rate of decline now slowing significantly.
What retail markup should jewelers apply to lab-grown diamonds?
Most successful jewelers in 2026 are targeting 2.0x–3.5x wholesale cost depending on carat size and quality grade, with higher multiples on smaller commercial goods and lower multiples on premium larger stones. Legacy retailers have maintained markups of 250–300%+, but increasing price transparency is putting downward pressure on excessive markups.
Are lab-grown diamond prices expected to keep falling?
The sharp annual declines of 2022–2024 are unlikely to repeat. Quarterly price drops have slowed to under 5%, and some segments (smaller stones, 1.5-carat goods) have actually seen price increases. Production cost floors are emerging. Most industry analysts expect relative price stability through the remainder of 2026, with possible low single-digit annual softening.
How do I access real-time lab-grown diamond wholesale pricing?
Guru Diam provides live wholesale pricing with real-time updates across 11,000+ IGI and GIA certified diamonds. Retailers can access full stock lists via CSV or API download, receive daily pricing updates via WhatsApp broadcast, and get same-day shipping from our NYC facility. No hidden markups — just transparent wholesale pricing. Contact Guru Diam for live pricing access.
Ready to see real wholesale prices? If you've read this far, you're serious about understanding the lab-grown diamond market — and you deserve a supplier that takes pricing as seriously as you do.
Guru Diam gives you what most wholesalers won't: fully transparent, live pricing across 11,000+ certified diamonds. No hidden markups. No stale price sheets. Real-time data you can download via CSV or API, daily WhatsApp updates, and same-day shipping from NYC.
Whether you're a boutique jeweler, a multi-store retailer, or a designer building a custom collection, we're built to be your wholesale partner — not just another vendor.
