3 Carat Radiant Lab Grown Diamond Prices Comparison
As of July 2026, 3 carat radiant lab grown diamonds usually range from $361 to $11,110, with an average price of $2,118.In the last month, prices for these diamonds are down 1.4%.Compare 9,208 verified listings across 14 retailers tracked by CaratRadar.
3 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 9,208 verified 3-carat radiant lab grown diamonds listed across 14 online retailers. Prices in this segment range from $361 to $11,110, with an average asking price of $2,118 and a median of $1,522.
The price spread of $10,749 (96.8% 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.
9,208 diamonds tracked in this segment
Price range: $361 to $11,110
Average price: $2,118
Median price: $1,522
Available across 14 retailers
Savings potential: up to 96.8%
Price Range Overview
As of Jul 13, 2026Real market range for this carat, shape, and diamond type.
9,208
$361
$2,118
$1,522
$11,110
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 69.9%IGI | 3.04ct | Radiant | E | SI1 | Ideal
From $414
Compare at $1,376
Save 66.9%IGI | 3.1ct | Radiant | E | SI1 | Ideal
From $428
Compare at $1,292
Save 65.8%IGI | 3.09ct | Radiant | E | SI1 | Very Good
From $440
Compare at $1,287
Save 15.4%IGI | 3.08ct | Radiant | G | VS1 | Very Good
From $449
Compare at $531
Save 56.3%IGI | 3.06ct | Radiant | G | VS1 | Ideal
From $452
Compare at $1,035
Save 63.2%IGI | 3.04ct | Radiant | H | VS1 | Very Good
From $453
Compare at $1,230
Save 55.3%IGI | 3.03ct | Radiant | G | VS1 | Very Good
From $455
Compare at $1,017
Save 15.6%IGI | 3.09ct | Radiant | G | VS1 | Very Good
From $455
Compare at $539
IGI | 3.09ct | Radiant | G | VS1 | Very Good
From $455
Compare at $539
Save 15.6%IGI | 3.09ct | Radiant | G | VS1 | Very Good
From $455
Compare at $539
Save 15.6%IGI | 3.09ct | Radiant | G | VS1 | Very Good
From $455
Compare at $539
Save 15.6%IGI | 3.09ct | Radiant | G | VS1 | Very Good
From $455
Compare at $539
Save 15.6%IGI | 3.09ct | Radiant | G | VS1 | Very Good
From $455
Compare at $539
Save 55.4%IGI | 3.04ct | Radiant | G | VS1 | Very Good
From $456
Compare at $1,023
Save 62.4%IGI | 3.02ct | Radiant | H | VS1 | Very Good
From $458
Compare at $1,218
Save 62.4%IGI | 3.02ct | Radiant | H | VS1 | Very Good
From $458
Compare at $1,218
Save 55.7%IGI | 3ct | Radiant | G | VVS2 | Very Good
From $459
Compare at $1,035
Save 55.7%IGI | 3ct | Radiant | G | VVS2 | Excellent
From $459
Compare at $1,035
Save 62.5%IGI | 3.03ct | Radiant | H | VS1 | Very Good
From $459
Compare at $1,225
Save 15.5%IGI | 3.08ct | Radiant | G | VS1 | Very Good
From $459
Compare at $543
Save 61.8%IGI | 3ct | Radiant | H | VS1 | Very Good
From $460
Compare at $1,204
Save 55.3%IGI | 3.05ct | Radiant | G | VS1 | Ideal
From $461
Compare at $1,031
Save 55.7%IGI | 3.01ct | Radiant | G | VVS2 | Excellent
From $461
Compare at $1,041
Save 15.4%IGI | 3.09ct | Radiant | G | VS1 | Very Good
From $461
Compare at $545
Save 15.4%IGI | 3.09ct | Radiant | G | VS1 | Excellent
From $461
Compare at $545
Save 66.9%IGI | 3.03ct | Radiant | G | VVS2 | Very Good
From $461
Compare at $1,392
Save 62%IGI | 3.01ct | Radiant | H | VS1 | Very Good
From $461
Compare at $1,212
Save 55.4%IGI | 3.06ct | Radiant | G | VS1 | Very Good
From $462
Compare at $1,037
Save 55.6%IGI | 3.07ct | Radiant | G | VS1 | Ideal
From $463
Compare at $1,043
Save 62%IGI | 3.02ct | Radiant | H | VS1 | Very Good
From $463
Compare at $1,219
Save 62.2%IGI | 3.03ct | Radiant | H | VS1 | Very Good
From $464
Compare at $1,227
Save 61.5%IGI | 3ct | Radiant | H | VS1 | Very Good
From $464
Compare at $1,205
Save 64.1%IGI | 3.02ct | Radiant | G | VS1 | Very Good
From $464
Compare at $1,293
Save 66.9%IGI | 3.02ct | Radiant | G | VS1 | Very Good
From $464
Compare at $1,402
Save 64.1%IGI | 3.02ct | Radiant | G | VS1 | Excellent
From $464
Compare at $1,293
Save 64.1%IGI | 3.02ct | Radiant | G | VS1 | Excellent
From $464
Compare at $1,293
Save 64.1%IGI | 3.02ct | Radiant | G | VS1 | Very Good
From $464
Compare at $1,293
Save 56.2%IGI | 3.04ct | Radiant | G | VVS2 | Very Good
From $465
Compare at $1,061
Save 56.3%IGI | 3.04ct | Radiant | G | VVS2 | Excellent
From $465
Compare at $1,063
Save 56.3%IGI | 3.04ct | Radiant | G | VVS2 | Excellent
From $465
Compare at $1,063
Save 64.3%IGI | 3.03ct | Radiant | G | VS1 | Excellent
From $465
Compare at $1,301
Save 66.9%IGI | 3.06ct | Radiant | G | VVS2 | Excellent
From $465
Compare at $1,405
Save 64.3%IGI | 3.03ct | Radiant | G | VS1 | Excellent
From $465
Compare at $1,304
Save 64.3%IGI | 3.03ct | Radiant | G | VS1 | Excellent
From $465
Compare at $1,301
Save 64.3%IGI | 3.03ct | Radiant | G | VS1 | Excellent
From $465
Compare at $1,301
Save 55.9%IGI | 3.09ct | Radiant | G | VS1 | Ideal
From $466
Compare at $1,056
Save 56.3%IGI | 3.05ct | Radiant | G | VVS2 | Excellent
From $467
Compare at $1,069
Save 56.2%IGI | 3.05ct | Radiant | G | VVS2 | Excellent
From $467
Compare at $1,067
Save 56.3%IGI | 3.05ct | Radiant | G | VVS2 | Very Good
From $467
Compare at $1,069
Save 66.9%IGI | 3.04ct | Radiant | G | VS1 | Very Good
From $467
Compare at $1,410
Entry pricing in this category starts around $361.
What to Know When Shopping for 3 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $10,749 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 $1,522 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 9,208 comparable stones in this segment. Prices start around $361 and go up to $11,110.
Based on the latest market data, the average asking price is about $2,118 with a median around $1,522.
The observed spread is roughly $10,749 across tracked listings, which is about 96.8% 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 $2,118. The median price is $1,522, 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 14 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 $10,749 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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