6 Carat Round Lab Grown Diamond Prices Comparison
As of October 2026, 6 carat round lab grown diamonds in the 6.00–6.99 carat benchmark range usually range from $384 to $135,986, with an average price of $4,332.In the last month, prices for these diamonds are down 2.4%.Compare 3,247 verified listings across 16 retailers tracked by CaratRadar.
6 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 3,247 verified 6-carat round lab grown diamonds in the 6.00–6.99 carat benchmark range, listed across 16 online retailers. Prices in this segment range from $384 to $135,986, with an average asking price of $4,332 and a median of $2,906.
The price spread of $135,602 (99.7% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
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.
3,247 diamonds tracked in the 6.00–6.99 carat benchmark
Price range: $384 to $135,986
Average price: $4,332
Median price: $2,906
Available across 16 retailers
Savings potential: up to 99.7%
Price Range Overview
As of Oct 15, 2026Real market range for this carat, shape, and diamond type.
3,247
$384
$4,332
$2,906
$135,986
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 79.8%IGI | 6.56ct | Round | F | SI2 | Ideal
From $776
Compare at $3,840
Save 71.7%IGI | 6.01ct | Round | E | SI1 | Excellent
From $790
Compare at $2,792
Save 77.5%IGI | 6.03ct | Round | F | SI2 | Ideal
From $793
Compare at $3,530
Save 79.8%IGI | 6.02ct | Round | F | SI1 | Ideal
From $855
Compare at $4,240
Save 70.4%IGI | 6.01ct | Round | F | VS2 | Excellent
From $885
Compare at $2,991
Save 78.6%IGI | 6ct | Round | F | VS1 | Very Good
From $900
Compare at $4,210
Save 79%IGI | 6ct | Round | F | VS1 | Ideal
From $904
Compare at $4,315
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 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 79.5%IGI | 6.04ct | Round | F | VVS2 | Excellent
From $911
Compare at $4,435
Save 79.5%IGI | 6.04ct | Round | F | VS1 | Excellent
From $913
Compare at $4,446
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 79.5%IGI | 6ct | Round | E | VS1 | Excellent
From $914
Compare at $4,450
Save 78.6%IGI | 6.01ct | Round | F | VS1 | Ideal
From $916
Compare at $4,288
Save 79.1%IGI | 6.01ct | Round | F | VS1 | Excellent
From $916
Compare at $4,374
Save 72.6%IGI | 6.09ct | Round | F | VVS2 | Excellent
From $918
Compare at $3,354
Save 70.4%IGI | 6.05ct | Round | F | VS2 | Excellent
From $919
Compare at $3,107
Save 70.4%IGI | 6.14ct | Round | G | VS2 | Excellent
From $924
Compare at $3,124
Save 72.6%IGI | 6.07ct | Round | E | VS1 | Ideal
From $924
Compare at $3,377
Save 76.3%IGI | 6ct | Round | G | SI1 | Excellent
From $925
Compare at $3,900
Save 79.1%IGI | 6ct | Round | F | VVS2 | Excellent
From $925
Compare at $4,419
Save 79.5%IGI | 6.08ct | Round | E | VS1 | Ideal
From $926
Compare at $4,509
IGI | 6ct | Round | F | VS1 | Ideal
From $930
Compare at $4,352
IGI | 6ct | Round | F | VS1 | Excellent
From $930
Compare at $4,352
IGI | 6ct | Round | F | VS1 | Ideal
From $930
Compare at $4,352
IGI | 6ct | Round | F | VS1 | Excellent
From $930
Compare at $4,352
IGI | 6ct | Round | F | VS1 | Excellent
From $930
Compare at $4,352
IGI | 6ct | Round | F | VS1 | Ideal
From $930
Compare at $4,352
Save 78.6%IGI | 6ct | Round | F | VS1 | Ideal
From $930
Compare at $4,352
Save 78.6%IGI | 6ct | Round | F | VS1 | Ideal
From $930
Compare at $4,352
Save 78.6%IGI | 6ct | Round | F | VS1 | Ideal
From $930
Compare at $4,352
Save 78.6%IGI | 6ct | Round | F | VS1 | Ideal
From $930
Compare at $4,352
Save 78.8%IGI | 6.01ct | Round | E | VS1 | Excellent
From $932
Compare at $4,399
Save 78.8%IGI | 6.01ct | Round | E | VS1 | Excellent
From $932
Compare at $4,399
Save 78.8%IGI | 6.02ct | Round | E | VS1 | Excellent
From $932
Compare at $4,406
Save 78.8%IGI | 6.01ct | Round | E | VS1 | Excellent
From $932
Compare at $4,399
Save 78.8%IGI | 6.01ct | Round | E | VS1 | Excellent
From $932
Compare at $4,399
Save 78.8%IGI | 6.01ct | Round | E | VS1 | Ideal
From $932
Compare at $4,399
Save 78.6%IGI | 6.01ct | Round | F | VS1 | Excellent
From $932
Compare at $4,359
Save 78.6%IGI | 6.01ct | Round | F | VS1 | Excellent
From $932
Compare at $4,359
Save 78.6%IGI | 6.01ct | Round | F | VS1 | Excellent
From $932
Compare at $4,359
Save 78.8%IGI | 6ct | Round | E | VS1 | Very Good
From $932
Compare at $4,399
Save 78.8%IGI | 6ct | Round | E | VS1 | Very Good
From $932
Compare at $4,399
IGI | 6.01ct | Round | F | VS1 | Excellent
From $932
Compare at $4,359
IGI | 6.01ct | Round | F | VS1 | Excellent
From $932
Compare at $4,359
Entry pricing in this benchmark range starts around $384.
What to Know When Shopping for 6 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $135,602 or more.
- 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 $2,906 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.
- Round brilliants command a premium due to higher rough waste during cutting. If budget matters, consider oval or cushion shapes for similar visual size.
Frequently Asked Questions
We currently track 3,247 comparable stones in the 6.00–6.99 carat benchmark range. Prices start around $384 and go up to $135,986.
Based on the latest market data, the average asking price is about $4,332 with a median around $2,906.
The observed spread is roughly $135,602 across tracked listings, which is about 99.7% 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 $4,332. The median price is $2,906, 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 16 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. The exact certified diamond can differ by $135,602 across 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
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Tracking Lab Grown inventory for the 6.00–6.99 carat Round diamond benchmark.