4.1 Carat Radiant Lab Grown Diamond Prices Comparison
As of May 2026, 4.1 carat radiant lab grown diamonds usually range from $547 to $18,664, with an average price of $3,001.In the last month, prices for these diamonds are up 1.8%.Compare 351 verified listings across 10 retailers tracked by CaratRadar.
4.1 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 351 verified 4.1-carat radiant lab grown diamonds listed across 10 online retailers. Prices in this segment range from $547 to $18,664, with an average asking price of $3,001 and a median of $2,122.
The price spread of $18,117 (97.1% 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.
351 diamonds tracked in this segment
Price range: $547 to $18,664
Average price: $3,001
Median price: $2,122
Available across 10 retailers
Savings potential: up to 97.1%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
351
$547
$3,001
$2,122
$18,664
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 61.3%IGI | 4.18ct | Radiant | G | VS2 | Excellent
From $761
Compare at $1,967
Save 23.8%IGI | 4.11ct | Radiant | E | VS1 | Very Good
From $771
Compare at $1,012
Save 76.8%IGI | 4.11ct | Radiant | E | VS1 | Ideal
From $771
Compare at $3,325
Save 65.4%IGI | 4.13ct | Radiant | E | VS1 | Very Good
From $775
Compare at $2,243
Save 76.8%IGI | 4.14ct | Radiant | E | VS1 | Very Good
From $776
Compare at $3,350
Save 65.6%IGI | 4.15ct | Radiant | E | VS1 | Very Good
From $778
Compare at $2,264
Save 62.3%IGI | 4.18ct | Radiant | F | VS1 | Very Good
From $779
Compare at $2,067
IGI | 4.11ct | Radiant | E | VS1 | Very Good
From $780
Compare at $3,205
Save 64.6%IGI | 4.1ct | Radiant | E | VS1 | Very Good
From $782
Compare at $2,210
Save 65.9%IGI | 4.19ct | Radiant | E | VS1 | Very Good
From $786
Compare at $2,305
Save 65.1%IGI | 4.14ct | Radiant | E | VS1 | Very Good
From $786
Compare at $2,255
IGI | 4.2ct | Radiant | E | VS1 | Very Good
From $788
Compare at $3,400
Save 62.5%IGI | 4.1ct | Radiant | F | VVS2 | Ideal
From $795
Compare at $2,122
IGI | 4.12ct | Radiant | E | VS1 | Very Good
From $795
Compare at $2,233
Save 65.3%IGI | 4.18ct | Radiant | E | VS1 | Very Good
From $796
Compare at $2,293
Save 64.5%IGI | 4.13ct | Radiant | E | VS1 | Ideal
From $796
Compare at $2,243
Save 54.4%IGI | 4.1ct | Radiant | D | SI1 | Ideal
From $802
Compare at $1,757
IGI | 4.19ct | Radiant | E | VS1 | Very Good
From $808
Compare at $2,305
Save 64.3%IGI | 4.15ct | Radiant | E | VS1 | Ideal
From $809
Compare at $2,265
IGI | 4.1ct | Radiant | E | VS2 | Very Good
From $816
Compare at $886
IGI | 4.1ct | Radiant | E | VS2 | Ideal
From $816
Compare at $886
IGI | 4.1ct | Radiant | E | VS2 | Ideal
From $816
Compare at $886
IGI | 4.1ct | Radiant | E | VS2 | Very Good
From $816
Compare at $886
Save 26.7%IGI | 4.1ct | Radiant | G | VVS2 | Very Good
From $819
Compare at $1,117
IGI | 4.1ct | Radiant | F | VS1 | Very Good
From $824
Compare at $904
Save 62.8%IGI | 4.1ct | Radiant | E | VS1 | Very Good
From $826
Compare at $2,220
Save 62.5%IGI | 4.1ct | Radiant | E | VS1 | Very Good
From $829
Compare at $2,212
IGI | 4.1ct | Radiant | E | VS1 | Ideal
From $832
Compare at $904
IGI | 4.1ct | Radiant | E | VS1 | Excellent
From $832
Compare at $904
Save 65.8%IGI | 4.1ct | Radiant | D | VS1 | Very Good
From $835
Compare at $2,440
Save 65.6%IGI | 4.1ct | Radiant | D | VS1 | Ideal
From $836
Compare at $2,429
Save 51.9%IGI | 4.1ct | Radiant | E | VS1 | Ideal
From $837
Compare at $1,740
IGI | 4.1ct | Radiant | E | VS1 | Very Good
From $845
Compare at $1,741
Save 52%IGI | 4.1ct | Radiant | D | SI1 | Very Good
From $846
Compare at $1,763
IGI | 4.1ct | Radiant | F | VVS2 | Very Good
From $849
Compare at $938
Save 64.2%IGI | 4.13ct | Radiant | E | VVS2 | Very Good
From $850
Compare at $2,374
Save 62.1%IGI | 4.12ct | Radiant | E | VS1 | Excellent
From $850
Compare at $2,241
Save 64.3%IGI | 4.14ct | Radiant | E | VVS2 | Very Good
From $852
Compare at $2,386
IGI | 4.15ct | Radiant | E | VVS2 | Very Good
From $854
Compare at $2,396
IGI | 4.16ct | Radiant | E | VVS2 | Very Good
From $856
Compare at $2,407
IGI | 4.17ct | Radiant | E | VVS2 | Very Good
From $858
Compare at $2,419
Save 64.5%IGI | 4.17ct | Radiant | E | VVS2 | Very Good
From $858
Compare at $2,419
Save 40.8%IGI | 4.11ct | Radiant | E | VVS2 | Ideal
From $860
Compare at $1,454
Save 64.6%IGI | 4.18ct | Radiant | E | VVS2 | Very Good
From $860
Compare at $2,429
Save 64.6%IGI | 4.18ct | Radiant | E | VVS2 | Very Good
From $860
Compare at $2,429
Save 64.6%IGI | 4.18ct | Radiant | E | VVS2 | Very Good
From $860
Compare at $2,429
Save 10.4%IGI | 4.1ct | Radiant | E | VVS2 | Very Good
From $860
Compare at $960
Save 64.7%IGI | 4.19ct | Radiant | E | VVS2 | Excellent
From $862
Compare at $2,440
IGI | 4.19ct | Radiant | E | VVS2 | Very Good
From $862
Compare at $2,440
Save 64.7%IGI | 4.19ct | Radiant | E | VVS2 | Very Good
From $862
Compare at $2,440
Entry pricing in this category starts around $547.
What to Know When Shopping for 4.1 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $18,117 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 $2,122 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 351 comparable stones in this segment. Prices start around $547 and go up to $18,664.
Based on the latest market data, the average asking price is about $3,001 with a median around $2,122.
The observed spread is roughly $18,117 across tracked listings, which is about 97.1% 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 $3,001. The median price is $2,122, 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 10 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 $18,117 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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