6 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 6 carat radiant lab grown diamonds usually range from $550 to $22,921, with an average price of $4,842.In the last month, prices for these diamonds are up 0.4%.Compare 367 verified listings across 9 retailers tracked by CaratRadar.
6 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 367 verified 6-carat radiant lab grown diamonds listed across 9 online retailers. Prices in this segment range from $550 to $22,921, with an average asking price of $4,842 and a median of $3,458.
The price spread of $22,371 (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.
367 diamonds tracked in this segment
Price range: $550 to $22,921
Average price: $4,842
Median price: $3,458
Available across 9 retailers
Savings potential: up to 97.6%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
367
$550
$4,842
$3,459
$22,921
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 78.5%IGI | 6ct | Radiant | G | VS1 | Ideal
From $1,796
Compare at $8,370
Save 79.6%IGI | 6ct | Radiant | G | VS1 | Ideal
From $1,796
Compare at $8,810
Save 73.1%IGI | 6ct | Radiant | G | VS2 | Ideal
From $2,301
Compare at $8,560
Save 76.1%IGI | 6ct | Radiant | G | VS1 | Ideal
From $1,707
Compare at $7,150
Save 15.5%IGI | 6ct | Radiant | G | VS2 | Very Good
From $1,796
Compare at $2,125
Save 64.3%IGI | 6ct | Radiant | F | VS2 | Ideal
From $3,808
Compare at $10,660
Save 74.2%IGI | 6ct | Radiant | D | VS1 | Ideal
From $3,961
Compare at $15,350
IGI | 6ct | Radiant | FANCY | VS1 | Very Good
From $4,252
Compare at $6,066
Save 68.4%IGI | 6ct | Radiant | F | VS2 | Very Good
From $3,370
Compare at $10,660
Save 83.4%IGI | 6ct | Radiant | E | VS2 | Ideal
From $1,965
Compare at $11,860
Save 84.2%IGI | 6ct | Radiant | F | SI1 | Very Good
From $1,529
Compare at $9,690
Save 82.6%IGI | 6ct | Radiant | F | VS1 | Ideal
From $1,965
Compare at $11,290
Save 82.1%IGI | 6ct | Radiant | E | VS1 | Very Good
From $2,223
Compare at $12,420
Save 75.1%IGI | 6ct | Radiant | G | VVS2 | Very Good
From $1,965
Compare at $7,900
Save 81.1%IGI | 6ct | Radiant | D | VS1 | Very Good
From $2,936
Compare at $15,500
Save 87.8%IGI | 6ct | Radiant | E | VS2 | Very Good
From $1,450
Compare at $11,910
Save 77.1%IGI | 6ct | Radiant | F | VS2 | Very Good
From $1,415
Compare at $6,170
Save 61.2%IGI | 6ct | Radiant | FANCY | VVS2 | Very Good
From $5,292
Compare at $13,628
Save 77%IGI | 6ct | Radiant | D | VVS1 | Excellent
From $3,994
Compare at $17,396
Save 79.2%IGI | 6ct | Radiant | F | VS1 | Very Good
From $1,817
Compare at $8,730
Save 46.2%GIA | 6.01ct | Radiant | I | VS1 | Ideal
From $5,862
Compare at $10,891
Save 43%GIA | 6.01ct | Radiant | G | VS2 | Ideal
From $7,017
Compare at $12,321
Save 47.7%GIA | 6.01ct | Radiant | G | VS2 | Excellent
From $3,037
Compare at $5,808
Save 68.8%GIA | 6.01ct | Radiant | H | VS2 | Ideal
From $3,019
Compare at $9,670
Save 63.4%IGI | 6.01ct | Radiant | G | VVS2 | Ideal
From $2,517
Compare at $6,880
Save 72.2%IGI | 6.01ct | Radiant | E | VS2 | Ideal
From $3,306
Compare at $11,880
Save 70.5%IGI | 6.01ct | Radiant | G | VS1 | Ideal
From $2,728
Compare at $9,260
Save 79.6%IGI | 6.01ct | Radiant | G | VS1 | Ideal
From $1,799
Compare at $8,820
Save 71.3%IGI | 6.01ct | Radiant | I | VS1 | Ideal
From $2,244
Compare at $7,810
Save 76.1%IGI | 6.01ct | Radiant | G | VS2 | Ideal
From $1,549
Compare at $6,490
Save 27.4%IGI | 6.01ct | Radiant | G | VS1 | Ideal
From $1,799
Compare at $2,480
Save 78.4%IGI | 6.01ct | Radiant | F | SI1 | Ideal
From $1,477
Compare at $6,830
Save 12.5%IGI | 6.01ct | Radiant | H | VS2 | Ideal
From $1,856
Compare at $2,120
Save 76.1%IGI | 6.01ct | Radiant | G | SI1 | Ideal
From $1,799
Compare at $7,520
Save 37.8%IGI | 6.01ct | Radiant | E | VVS2 | Ideal
From $2,659
Compare at $4,276
Save 55.2%IGI | 6.01ct | Radiant | F | VS2 | Ideal
From $3,749
Compare at $8,360
Save 80.5%IGI | 6.01ct | Radiant | G | VS1 | Ideal
From $1,799
Compare at $9,250
Save 78.8%IGI | 6.01ct | Radiant | E | VVS2 | Ideal
From $4,840
Compare at $22,780
Save 57.9%IGI | 6.01ct | Radiant | H | VS1 | Excellent
From $2,176
Compare at $5,170
Save 77.7%IGI | 6.01ct | Radiant | E | VVS2 | Ideal
From $3,326
Compare at $14,900
Save 69.6%IGI | 6.01ct | Radiant | E | VS2 | Ideal
From $1,968
Compare at $6,480
Save 86%IGI | 6.01ct | Radiant | E | VS1 | Excellent
From $4,843
Compare at $34,650
Save 81.9%IGI | 6.01ct | Radiant | G | VS2 | Ideal
From $1,447
Compare at $8,002
Save 41.8%IGI | 6.01ct | Radiant | G | VVS2 | Ideal
From $1,746
Compare at $2,997
Save 74.3%IGI | 6.01ct | Radiant | D | VS1 | Ideal
From $3,968
Compare at $15,420
Save 85%IGI | 6.01ct | Radiant | E | VS2 | Excellent
From $1,798
Compare at $11,950
Save 86%IGI | 6.01ct | Radiant | E | VS1 | Excellent
From $2,091
Compare at $14,940
Save 72.4%IGI | 6.01ct | Radiant | D | VS1 | Excellent
From $3,968
Compare at $14,350
Save 75.9%IGI | 6.01ct | Radiant | G | VS1 | Ideal
From $1,663
Compare at $6,900
Save 71.4%IGI | 6.01ct | Radiant | G | VS1 | Ideal
From $1,885
Compare at $6,580
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 $22,371 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 $3,458 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 367 comparable stones in this segment. Prices start around $550 and go up to $22,921.
Based on the latest market data, the average asking price is about $4,842 with a median around $3,458.
The observed spread is roughly $22,371 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 our data, the median price is $3,458, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 9 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 $22,371 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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