6 Carat Lab Grown Diamond Prices Comparison
A 6 carat lab grown diamond of any shape typically costs $2,825 (median of 15,849 listings at 17 online stores). Average prices fell 1% over the last month. Updated .
Average $4,165. Listings run from $371 to $156,638 in the 6.00–6.99 carat range.
See the live listings6 Carat Lab Grown Diamond Market Overview
CaratRadar currently tracks 15,849 verified 6-carat lab grown diamonds in the 6.00–6.99 carat benchmark range, listed across 17 online retailers. Prices in this segment range from $371 to $156,638, with an average asking price of $4,165 and a median of $2,825.
Across this category, asking prices span $156,267 (99.8% from the most expensive to the cheapest listing). The same certified diamond can also be listed at different prices by different retailers, which is why CaratRadar compares stones by certificate number.
These figures use the same benchmark range throughout the page and are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
15,849 diamonds tracked in the 6.00–6.99 carat benchmark
Price range: $371 to $156,638
Average price: $4,165
Median price: $2,825
Available across 17 retailers
Category price spread: 99.8%
Price Range Overview
As of Oct 23, 2026Real market range for this carat, shape, and diamond type.
15,849
$371
$4,165
$2,825
$156,638
Price History
Price Comparison Matrix
6 Carat Lab Grown Diamond Prices by Shape
Shape-level averages for this carat and type. Open each shape page for full market detail.
Compare nearby
Prices for the next carat weights, other shapes and the natural twin.
Nearby carat weights
Same size, natural
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 61.3%IGI | 6ct | Emerald | H | VS2 | Ideal
From $753
Compare at $1,946
Save 79.8%IGI | 6.56ct | Round | F | SI2 | Ideal
From $776
Compare at $3,840
Save 70.7%IGI | 6.08ct | Marquise | H | VS2 | Ideal
From $778
Compare at $2,653
Save 71.7%IGI | 6.01ct | Round | E | SI1 | Excellent
From $790
Compare at $2,792
Save 79.4%IGI | 6.12ct | Oval | H | VS2 | Ideal
From $804
Compare at $3,910
Save 70.7%IGI | 6.05ct | Radiant | G | VS1 | Very Good
From $807
Compare at $2,752
Save 68.3%IGI | 6.04ct | Emerald | G | VVS2 | Ideal
From $813
Compare at $2,567
Save 70.7%IGI | 6.06ct | Radiant | G | VS1 | Very Good
From $818
Compare at $2,789
Save 64.2%IGI | 6.02ct | Emerald | H | VS2 | Ideal
From $819
Compare at $2,289
Save 76.7%IGI | 6.03ct | Round | F | SI2 | Ideal
From $821
Compare at $3,530
Save 60.6%IGI | 6.19ct | Emerald | F | VVS2 | Ideal
From $829
Compare at $2,102
Save 67.9%IGI | 6.09ct | Emerald | G | VVS2 | Very Good
From $830
Compare at $2,585
Save 70.4%IGI | 6.03ct | Emerald | G | VVS2 | Very Good
From $855
Compare at $2,889
Save 37.7%IGI | 6.06ct | Emerald | F | SI1 | Very Good
From $864
Compare at $1,387
Save 62.9%IGI | 6.09ct | Emerald | F | VS2 | Ideal
From $875
Compare at $2,356
Save 69.7%IGI | 6.1ct | Emerald | F | VS1 | Very Good
From $876
Compare at $2,890
Save 70.4%IGI | 6.04ct | Emerald | G | VVS2 | Ideal
From $880
Compare at $2,973
Save 78.2%IGI | 6.56ct | Emerald | F | VS2 | Very Good
From $883
Compare at $4,047
Save 70.4%IGI | 6.01ct | Radiant | G | VS1 | Ideal
From $885
Compare at $2,991
Save 70.4%IGI | 6.1ct | Radiant | G | VS2 | Very Good
From $887
Compare at $2,998
Save 69.3%IGI | 6.02ct | Emerald | F | VS1 | Very Good
From $887
Compare at $2,889
Save 76.9%IGI | 6.13ct | Radiant | H | VS2 | Ideal
From $891
Compare at $3,850
Save 69.3%IGI | 6.04ct | Emerald | F | VS1 | Very Good
From $891
Compare at $2,898
Save 70.4%IGI | 6.06ct | Emerald | F | VVS2 | Ideal
From $892
Compare at $3,015
Save 63.4%IGI | 6.06ct | Emerald | F | VS1 | Ideal
From $893
Compare at $2,442
Save 67.2%IGI | 6.09ct | Emerald | G | VVS2 | Very Good
From $894
Compare at $2,729
Save 59.4%IGI | 6.03ct | Pear | G | VS1 | Ideal
From $898
Compare at $2,210
Save 59.4%IGI | 6.03ct | Pear | G | VS1 | Very Good
From $898
Compare at $2,210
Save 70.4%IGI | 6.07ct | Emerald | F | VVS2 | Very Good
From $904
Compare at $3,055
Save 70.4%IGI | 6.05ct | Emerald | F | VVS2 | Ideal
From $905
Compare at $3,060
Save 62.6%IGI | 6.02ct | Emerald | F | VS1 | Excellent
From $905
Compare at $2,420
Save 78.6%IGI | 6ct | Round | E | VS1 | Excellent
From $907
Compare at $4,242
Save 78.6%IGI | 6ct | Round | E | VS1 | Excellent
From $907
Compare at $4,242
Save 70.4%IGI | 6.02ct | Radiant | G | VS1 | Very Good
From $907
Compare at $3,067
Save 69.3%IGI | 6ct | Radiant | G | VS1 | Very Good
From $907
Compare at $2,950
Save 78.6%IGI | 6.01ct | Round | E | VS1 | Excellent
From $908
Compare at $4,249
Save 70.4%IGI | 6.26ct | Round | G | SI1 | Excellent
From $909
Compare at $3,073
Save 72.6%IGI | 6.01ct | Round | F | VS1 | Excellent
From $909
Compare at $3,318
Save 72.6%IGI | 6.03ct | Round | F | VVS2 | Excellent
From $909
Compare at $3,321
Save 62.5%IGI | 6.01ct | Round | E | VS1 | Excellent
From $910
Compare at $2,425
Save 58.9%IGI | 6.03ct | Radiant | G | VS1 | Very Good
From $910
Compare at $2,213
Save 62.7%IGI | 6.05ct | Emerald | F | VS1 | Ideal
From $910
Compare at $2,442
Save 79.5%IGI | 6.04ct | Round | F | VVS2 | Excellent
From $911
Compare at $4,435
Save 79.5%IGI | 6.06ct | Round | F | VVS2 | Excellent
From $914
Compare at $4,450
Save 72.6%IGI | 6.05ct | Round | F | VS1 | Ideal
From $914
Compare at $3,340
Save 75.7%IGI | 6.02ct | Radiant | H | VS2 | Ideal
From $915
Compare at $3,770
Save 79.1%IGI | 6ct | Radiant | H | VS1 | Very Good
From $915
Compare at $4,380
Save 60.8%IGI | 6.05ct | Emerald | F | VS2 | Ideal
From $915
Compare at $2,334
Save 79.1%IGI | 6ct | Radiant | H | VS1 | Ideal
From $915
Compare at $4,380
Save 78.6%IGI | 6.01ct | Round | F | VS1 | Excellent
From $916
Compare at $4,288
Entry pricing in this benchmark range starts around $371.
What to Know When Shopping for 6 Carat Lab Grown Diamonds
- Always compare identical certified diamonds across retailers, because the same certificate can be listed at different prices by different stores. Across this whole category, asking prices span $156,267 from the cheapest to the most expensive listing.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $2,825 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
Frequently Asked Questions
We currently track 15,849 comparable stones in the 6.00–6.99 carat benchmark range. Prices start around $371 and go up to $156,638.
Based on the latest market data, the average asking price is about $4,165 with a median around $2,825.
The observed spread is roughly $156,267 across tracked listings, which is about 99.8% from highest to lowest offer in the 6.00–6.99 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $4,165. The median price is $2,825, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
We currently track this stone category across 17 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. Across this category, asking prices span $156,267 from the cheapest to the most expensive listing, and the same certified diamond can also carry different prices at different sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
Tools and Guides
Tracking Lab Grown inventory for the 6.00–6.99 carat all-shape diamond benchmark.