6 Carat Radiant Lab Grown Diamond Prices Comparison
As of October 2026, 6 carat radiant lab grown diamonds in the 6.00–6.99 carat benchmark range usually range from $550 to $78,892, with an average price of $4,107.In the last month, prices for these diamonds are down 1.8%.Compare 2,142 verified listings across 16 retailers tracked by CaratRadar.
6 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 2,142 verified 6-carat radiant lab grown diamonds in the 6.00–6.99 carat benchmark range, listed across 16 online retailers. Prices in this segment range from $550 to $78,892, with an average asking price of $4,107 and a median of $2,788.
The price spread of $78,342 (99.3% 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.
2,142 diamonds tracked in the 6.00–6.99 carat benchmark
Price range: $550 to $78,892
Average price: $4,107
Median price: $2,788
Available across 16 retailers
Savings potential: up to 99.3%
Price Range Overview
As of Oct 14, 2026Real market range for this carat, shape, and diamond type.
2,142
$550
$4,107
$2,788
$78,892
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 70.7%IGI | 6.05ct | Radiant | G | VS1 | Very Good
From $822
Compare at $2,803
Save 53.1%IGI | 6.02ct | Radiant | FANCY | SI1 | Very Good
From $823
Compare at $1,755
Save 43%IGI | 6.01ct | Radiant | FANCY | SI1 | Very Good
From $885
Compare at $1,553
Save 70.4%IGI | 6.1ct | Radiant | G | VS2 | Very Good
From $887
Compare at $2,998
Save 70.4%IGI | 6.06ct | Radiant | G | VS1 | Very Good
From $903
Compare at $3,051
Save 70.4%IGI | 6.02ct | Radiant | G | VS1 | Very Good
From $907
Compare at $3,067
Save 75.9%IGI | 6.02ct | Radiant | H | VS2 | Ideal
From $910
Compare at $3,770
Save 59.7%IGI | 6.03ct | Radiant | G | VS1 | Very Good
From $910
Compare at $2,256
Save 79.1%IGI | 6ct | Radiant | H | VS1 | Very Good
From $915
Compare at $4,380
Save 79.1%IGI | 6ct | Radiant | H | VS1 | Ideal
From $915
Compare at $4,380
Save 60%IGI | 6.09ct | Radiant | G | VS1 | Very Good
From $919
Compare at $2,297
Save 78.2%IGI | 6.1ct | Radiant | G | VS1 | Excellent
From $920
Compare at $4,220
Save 70.4%IGI | 6.08ct | Radiant | H | VS1 | Excellent
From $924
Compare at $3,122
Save 58.1%IGI | 6.01ct | Radiant | G | VS1 | Excellent
From $926
Compare at $2,212
Save 63%IGI | 6.07ct | Radiant | G | VVS2 | Very Good
From $966
Compare at $2,609
Save 68%IGI | 6.09ct | Radiant | G | VS1 | Very Good
From $978
Compare at $3,060
Save 68%IGI | 6.09ct | Radiant | G | VS1 | Very Good
From $978
Compare at $3,060
Save 79.8%IGI | 6.04ct | Radiant | H | VVS2 | Excellent
From $994
Compare at $4,910
Save 54.3%IGI | 6.01ct | Radiant | G | VS1 | Very Good
From $999
Compare at $2,186
Save 68%IGI | 6.01ct | Radiant | F | VVS2 | Excellent
From $1,001
Compare at $3,130
Save 68%IGI | 6.27ct | Radiant | G | VS1 | Excellent
From $1,002
Compare at $3,133
Save 59.1%IGI | 6.02ct | Radiant | F | VS1 | Very Good
From $1,002
Compare at $2,449
Save 59.2%IGI | 6ct | Radiant | F | VS1 | Ideal
From $1,006
Compare at $2,468
Save 68%IGI | 6.05ct | Radiant | F | VS1 | Ideal
From $1,009
Compare at $3,156
Save 59.7%IGI | 6.06ct | Radiant | F | VS1 | Very Good
From $1,009
Compare at $2,504
Save 68%IGI | 6.08ct | Radiant | F | VVS2 | Ideal
From $1,010
Compare at $3,159
Save 68%IGI | 6.02ct | Radiant | F | VVS2 | Ideal
From $1,013
Compare at $3,168
Save 68%IGI | 6.28ct | Radiant | G | VS1 | Very Good
From $1,014
Compare at $3,171
Save 57.4%IGI | 6.07ct | Radiant | F | VS2 | Excellent
From $1,016
Compare at $2,385
Save 59%IGI | 6.06ct | Radiant | F | VS1 | Very Good
From $1,017
Compare at $2,480
Save 58.5%IGI | 6.01ct | Radiant | F | VS1 | Excellent
From $1,017
Compare at $2,453
Save 71.3%IGI | 6.03ct | Radiant | F | VVS2 | Ideal
From $1,017
Compare at $3,546
Save 61.4%IGI | 6.05ct | Radiant | G | VVS2 | Very Good
From $1,018
Compare at $2,637
Save 68%IGI | 6.05ct | Radiant | F | VVS2 | Excellent
From $1,018
Compare at $3,184
Save 67.8%IGI | 6.01ct | Radiant | F | VVS2 | Ideal
From $1,019
Compare at $3,164
Save 67.8%IGI | 6.03ct | Radiant | F | VVS2 | Very Good
From $1,023
Compare at $3,174
Save 68%IGI | 6.09ct | Radiant | F | VVS2 | Ideal
From $1,024
Compare at $3,205
Save 59.1%IGI | 6.05ct | Radiant | F | VS1 | Very Good
From $1,026
Compare at $2,510
Save 79%IGI | 6ct | Radiant | G | VVS2 | Excellent
From $1,028
Compare at $4,886
Save 78.9%IGI | 6.01ct | Radiant | H | VVS2 | Excellent
From $1,031
Compare at $4,890
Save 61%IGI | 6.02ct | Radiant | F | VVS2 | Very Good
From $1,031
Compare at $2,644
Save 71.9%IGI | 6.01ct | Radiant | F | VS1 | Ideal
From $1,033
Compare at $3,681
Save 79%IGI | 6.04ct | Radiant | F | VS1 | Ideal
From $1,038
Compare at $4,932
Save 60.8%IGI | 6.06ct | Radiant | F | VVS2 | Excellent
From $1,038
Compare at $2,649
Save 68%IGI | 6.09ct | Radiant | F | VS1 | Very Good
From $1,039
Compare at $3,251
Save 60.8%IGI | 6.07ct | Radiant | F | VVS2 | Excellent
From $1,040
Compare at $2,656
Save 71.9%IGI | 6.05ct | Radiant | F | VS1 | Ideal
From $1,040
Compare at $3,705
Save 71.9%IGI | 6.05ct | Radiant | F | VS1 | Ideal
From $1,040
Compare at $3,705
Save 79%IGI | 6.08ct | Radiant | G | VVS2 | Ideal
From $1,041
Compare at $4,952
Save 66.7%IGI | 6.08ct | Radiant | F | VVS2 | Excellent
From $1,044
Compare at $3,133
Entry pricing in this benchmark range starts around $550.
What to Know When Shopping for 6 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $78,342 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 $2,788 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.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 2,142 comparable stones in the 6.00–6.99 carat benchmark range. Prices start around $550 and go up to $78,892.
Based on the latest market data, the average asking price is about $4,107 with a median around $2,788.
The observed spread is roughly $78,342 across tracked listings, which is about 99.3% 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 $4,107. The median price is $2,788, 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 $78,342 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.
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Tracking Lab Grown inventory for the 6.00–6.99 carat Radiant diamond benchmark.