3.4 Carat Radiant Lab Grown Diamond Prices Comparison
As of February 2026, 3.4 carat radiant lab grown diamonds usually range from $662 to $22,860, with an average price of $2,603.In the last month, prices for these diamonds are down 6.1%.Compare 357 verified listings across 11 retailers tracked by CaratRadar.
3.4 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 357 verified 3.4-carat radiant lab grown diamonds listed across 11 online retailers. Prices in this segment range from $662 to $22,860, with an average asking price of $2,603 and a median of $1,466.
The price spread of $22,198 (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.
357 diamonds tracked in this segment
Price range: $662 to $22,860
Average price: $2,603
Median price: $1,466
Available across 11 retailers
Savings potential: up to 97.1%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
357
$662
$2,603
$1,466
$22,860
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIASave 92.2%3.36ct | Radiant | E | SI1 | Excellent
From $5,610
Compare at $72,240
GIASave 81.6%3.36ct | Radiant | D | VVS1 | Excellent
From $2,512
Compare at $13,640
GIASave 81.1%3.36ct | Radiant | D | IF | Excellent
From $5,202
Compare at $27,580
GIASave 81.4%3.36ct | Radiant | D | VVS1 | Excellent
From $2,542
Compare at $13,640
GIASave 23%3.36ct | Radiant | E | VS1 | Ideal
From $7,318
Compare at $9,510
GIASave 68.3%3.36ct | Radiant | F | VS1 | Ideal
From $2,101
Compare at $6,620
GIASave 23.7%3.36ct | Radiant | E | FL | Ideal
From $17,490
Compare at $22,934
IGISave 80.1%3.36ct | Radiant | E | VVS1 | Ideal
From $1,562
Compare at $7,860
IGISave 74.2%3.36ct | Radiant | D | VVS1 | Ideal
From $1,661
Compare at $6,450
GIASave 81.1%3.36ct | Radiant | D | VVS2 | Excellent
From $2,154
Compare at $11,370
GIASave 81.6%3.36ct | Radiant | E | VVS1 | Excellent
From $2,545
Compare at $13,840
GIASave 72.6%3.36ct | Radiant | D | VVS1 | Excellent
From $4,764
Compare at $17,400
GIASave 24.1%3.36ct | Radiant | D | FL | Ideal
From $22,860
Compare at $30,101
GIASave 46.9%3.36ct | Radiant | G | VVS2 | Excellent
From $1,466
Compare at $2,761
IGISave 74.2%3.36ct | Radiant | D | IF | Excellent
From $5,175
Compare at $20,070
IGISave 74.2%3.36ct | Radiant | D | IF | Excellent
From $5,175
Compare at $20,070
IGISave 84.5%3.36ct | Radiant | D | VVS2 | Excellent
From $1,237
Compare at $7,980
IGISave 84.6%3.36ct | Radiant | F | VS2 | Ideal
From $891
Compare at $5,780
GIASave 71.6%3.36ct | Radiant | D | VVS2 | Excellent
From $3,224
Compare at $11,370
IGISave 74.5%3.36ct | Radiant | E | VS2 | Very Good
From $995
Compare at $3,910
IGISave 86.1%3.36ct | Radiant | G | VS1 | Very Good
From $788
Compare at $5,670
3.36ct | Radiant | F | VS1 | Very Good
From $1,019
Compare at $4,830
IGISave 75.6%3.36ct | Radiant | E | VS1 | Very Good
From $1,771
Compare at $7,270
IGISave 79.9%3.36ct | Radiant | F | VS1 | Excellent
From $1,019
Compare at $5,070
IGISave 22.1%3.36ct | Radiant | E | VVS2 | Very Good
From $855
Compare at $1,098
IGISave 78.8%3.36ct | Radiant | G | VVS1 | Excellent
From $1,500
Compare at $7,080
IGISave 48.7%3.36ct | Radiant | D | VS1 | Ideal
From $2,427
Compare at $4,730
GIASave 12.4%3.36ct | Radiant | E | VS1 | Ideal
From $4,536
Compare at $5,180
IGISave 73.5%3.36ct | Radiant | D | VVS2 | Very Good
From $1,622
Compare at $6,120
IGISave 90.5%3.36ct | Radiant | D | VVS2 | Ideal
From $882
Compare at $9,310
IGISave 72.1%3.36ct | Radiant | D | VVS1 | Excellent
From $3,062
Compare at $10,960
IGISave 50.4%3.36ct | Radiant | D | VVS1 | Excellent
From $3,062
Compare at $6,180
IGISave 79.7%3.36ct | Radiant | G | VS1 | Ideal
From $840
Compare at $4,140
IGISave 78.3%3.36ct | Radiant | D | VVS2 | Ideal
From $1,403
Compare at $6,450
IGISave 86.8%3.37ct | Radiant | G | VS2 | Ideal
From $771
Compare at $5,830
IGISave 84.6%3.37ct | Radiant | D | VVS2 | Ideal
From $1,267
Compare at $8,200
IGISave 71.3%3.37ct | Radiant | E | VS2 | Ideal
From $1,126
Compare at $3,920
IGISave 70.5%3.37ct | Radiant | D | VVS1 | Excellent
From $3,041
Compare at $10,320
IGISave 69.5%3.37ct | Radiant | E | VVS2 | Ideal
From $1,129
Compare at $3,705
GIASave 81.4%3.37ct | Radiant | D | VVS1 | Excellent
From $2,548
Compare at $13,680
GIASave 70.6%3.37ct | Radiant | D | FL | Excellent
From $18,438
Compare at $62,760
GIASave 15.9%3.37ct | Radiant | E | VVS2 | Excellent
From $1,903
Compare at $2,264
IGISave 81.9%3.37ct | Radiant | E | IF | Ideal
From $3,928
Compare at $21,750
IGISave 80.8%3.37ct | Radiant | E | VVS1 | Ideal
From $1,566
Compare at $8,170
IGISave 67.7%3.37ct | Radiant | D | IF | Excellent
From $4,545
Compare at $14,051
IGISave 55.3%3.37ct | Radiant | E | VVS2 | Very Good
From $1,241
Compare at $2,780
IGISave 68.4%3.37ct | Radiant | D | IF | Excellent
From $5,703
Compare at $18,066
GIASave 71.4%3.37ct | Radiant | D | VVS1 | Excellent
From $3,143
Compare at $11,000
IGISave 85.4%3.37ct | Radiant | D | VVS1 | Very Good
From $1,591
Compare at $10,860
IGISave 85.6%3.37ct | Radiant | F | VVS2 | Ideal
From $1,022
Compare at $7,090
Entry pricing in this category starts around $662.
What to Know When Shopping for 3.4 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $22,198 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 $1,466 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 357 comparable stones in this segment. Prices start around $662 and go up to $22,860.
Based on the latest market data, the average asking price is about $2,603 with a median around $1,466.
The observed spread is roughly $22,198 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 our data, the median price is $1,466, 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 11 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 $22,198 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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