6 Carat Radiant Lab Grown Diamond Prices Comparison
As of May 2026, 6 carat radiant lab grown diamonds usually range from $550 to $22,499, with an average price of $4,590.In the last month, prices for these diamonds are down 3.7%.Compare 153 verified listings across 6 retailers tracked by CaratRadar.
6 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 153 verified 6-carat radiant lab grown diamonds listed across 6 online retailers. Prices in this segment range from $550 to $22,499, with an average asking price of $4,590 and a median of $3,234.
The price spread of $21,949 (97.6% 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 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.
153 diamonds tracked in this segment
Price range: $550 to $22,499
Average price: $4,590
Median price: $3,234
Available across 6 retailers
Savings potential: up to 97.6%
Price Range Overview
As of May 31, 2026Real market range for this carat, shape, and diamond type.
153
$550
$4,590
$3,234
$22,499
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 74.9%IGI | 6.04ct | Radiant | E | SI1 | Very Good
From $824
Compare at $3,280
Save 72.8%IGI | 6.06ct | Radiant | H | VS1 | Excellent
From $858
Compare at $3,155
Save 73.2%IGI | 6ct | Radiant | E | SI1 | Ideal
From $868
Compare at $3,238
Save 68.5%IGI | 6.08ct | Radiant | H | VS1 | Ideal
From $1,023
Compare at $3,243
Save 62.3%IGI | 6.05ct | Radiant | G | VS2 | Ideal
From $1,081
Compare at $2,864
Save 67.5%IGI | 6.02ct | Radiant | G | VVS2 | Ideal
From $1,111
Compare at $3,419
Save 74.6%IGI | 6ct | Radiant | H | VVS2 | Excellent
From $1,112
Compare at $4,371
Save 67.7%IGI | 6.05ct | Radiant | G | VVS2 | Very Good
From $1,120
Compare at $3,467
Save 65.1%IGI | 6.08ct | Radiant | H | VS1 | Excellent
From $1,126
Compare at $3,228
Save 32.8%IGI | 6.08ct | Radiant | G | VS1 | Very Good
From $1,131
Compare at $1,682
Save 30.2%IGI | 6.01ct | Radiant | E | VS2 | Excellent
From $1,149
Compare at $1,645
Save 74.6%IGI | 6.02ct | Radiant | G | VVS2 | Very Good
From $1,153
Compare at $4,541
Save 72.9%IGI | 6ct | Radiant | F | VS2 | Very Good
From $1,176
Compare at $4,337
Save 56.2%IGI | 6.07ct | Radiant | H | VS2 | Ideal
From $1,188
Compare at $2,713
Save 62.5%IGI | 6.06ct | Radiant | F | VS1 | Very Good
From $1,203
Compare at $3,206
Save 62.4%IGI | 6.04ct | Radiant | F | VS1 | Very Good
From $1,203
Compare at $3,200
Save 75.7%IGI | 6.07ct | Radiant | F | VS1 | Very Good
From $1,203
Compare at $4,958
Save 61.6%IGI | 6.02ct | Radiant | F | VS1 | Very Good
From $1,213
Compare at $3,155
Save 61.5%IGI | 6.08ct | Radiant | F | VVS2 | Excellent
From $1,228
Compare at $3,191
Save 72.7%IGI | 6.08ct | Radiant | F | VS1 | Ideal
From $1,252
Compare at $4,593
Save 46.1%IGI | 6.01ct | Radiant | G | VS2 | Very Good
From $1,260
Compare at $2,338
Save 72.4%IGI | 6.06ct | Radiant | FANCY | VS2 | Very Good
From $1,264
Compare at $4,572
Save 59.5%IGI | 6.04ct | Radiant | F | VS1 | Excellent
From $1,284
Compare at $3,174
Save 54.3%IGI | 6ct | Radiant | G | VS2 | Very Good
From $1,301
Compare at $2,847
Save 70%IGI | 6.01ct | Radiant | F | VS2 | Very Good
From $1,311
Compare at $4,367
Save 75.8%IGI | 6.06ct | Radiant | F | VVS2 | Ideal
From $1,312
Compare at $5,415
Save 75.7%IGI | 6.05ct | Radiant | F | VVS2 | Very Good
From $1,317
Compare at $5,430
Save 75.8%IGI | 6.09ct | Radiant | F | VVS2 | Very Good
From $1,325
Compare at $5,466
Save 75.8%IGI | 6.09ct | Radiant | F | VVS2 | Very Good
From $1,325
Compare at $5,466
Save 70.7%IGI | 6.08ct | Radiant | F | VVS2 | Ideal
From $1,345
Compare at $4,593
Save 70.1%IGI | 6.08ct | Radiant | F | VVS2 | Excellent
From $1,345
Compare at $4,501
Save 50.2%IGI | 6.01ct | Radiant | G | VVS2 | Ideal
From $1,347
Compare at $2,704
Save 68.3%IGI | 6.09ct | Radiant | F | VVS2 | Excellent
From $1,347
Compare at $4,247
Save 57.4%IGI | 6.05ct | Radiant | E | VS1 | Very Good
From $1,350
Compare at $3,167
Save 23.3%IGI | 6.01ct | Radiant | F | VS1 | Good
From $1,352
Compare at $1,764
Save 60.2%IGI | 6.06ct | Radiant | E | VVS2 | Ideal
From $1,352
Compare at $3,394
Save 57.2%IGI | 6.01ct | Radiant | F | VS1 | Excellent
From $1,354
Compare at $3,163
Save 75.8%IGI | 6.04ct | Radiant | F | VVS2 | Very Good
From $1,355
Compare at $5,591
Save 60.3%IGI | 6.08ct | Radiant | E | VVS2 | Very Good
From $1,357
Compare at $3,415
Save 42.4%IGI | 6.02ct | Radiant | G | VS1 | Ideal
From $1,363
Compare at $2,366
Save 56.2%IGI | 6.03ct | Radiant | F | VVS2 | Very Good
From $1,374
Compare at $3,139
Save 76.2%IGI | 6.02ct | Radiant | E | VVS2 | Very Good
From $1,389
Compare at $5,842
Save 56.4%IGI | 6.04ct | Radiant | F | VS1 | Very Good
From $1,395
Compare at $3,201
Save 56.1%IGI | 6.07ct | Radiant | E | VS1 | Very Good
From $1,397
Compare at $3,185
Save 55.5%IGI | 6.03ct | Radiant | E | VS1 | Very Good
From $1,400
Compare at $3,149
Save 55.6%IGI | 6.05ct | Radiant | E | VS1 | Very Good
From $1,405
Compare at $3,167
Save 58.4%IGI | 6.09ct | Radiant | E | VVS2 | Excellent
From $1,414
Compare at $3,397
Save 54.9%IGI | 6.03ct | Radiant | E | VS1 | Excellent
From $1,424
Compare at $3,154
Save 32.4%IGI | 6.03ct | Radiant | E | VS1 | Very Good
From $1,426
Compare at $2,110
Save 57.7%IGI | 6.08ct | Radiant | E | VVS2 | Excellent
From $1,435
Compare at $3,393
Entry pricing in this category 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 $21,949 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 $3,234 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 153 comparable stones in this segment. Prices start around $550 and go up to $22,499.
Based on the latest market data, the average asking price is about $4,590 with a median around $3,234.
The observed spread is roughly $21,949 across tracked listings, which is about 97.6% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $4,590. The median price is $3,234, 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 6 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 $21,949 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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