3.4 Carat Round Lab Grown Diamond Prices Comparison
As of February 2026, 3.4 carat round lab grown diamonds usually range from $602 to $26,200, with an average price of $2,212.In the last month, prices for these diamonds are down 3.6%.Compare 1,440 verified listings across 12 retailers tracked by CaratRadar.
3.4 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,440 verified 3.4-carat round lab grown diamonds listed across 12 online retailers. Prices in this segment range from $602 to $26,200, with an average asking price of $2,212 and a median of $1,414.
The price spread of $25,598 (97.7% 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.
1,440 diamonds tracked in this segment
Price range: $602 to $26,200
Average price: $2,212
Median price: $1,414
Available across 12 retailers
Savings potential: up to 97.7%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,440
$602
$2,212
$1,414
$26,200
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GCALSave 74.7%3.36ct | Round | D | IF | Ideal
From $5,236
Compare at $20,720
GIASave 62.4%3.36ct | Round | D | VVS1 | Excellent
From $4,777
Compare at $12,710
GIASave 55.5%3.36ct | Round | E | VS1 | Excellent
From $5,141
Compare at $11,560
GIASave 62.4%3.36ct | Round | D | VVS1 | Excellent
From $4,777
Compare at $12,710
GIASave 55.5%3.36ct | Round | E | VS1 | Excellent
From $5,141
Compare at $11,560
GIASave 55.2%3.36ct | Round | E | VVS2 | Excellent
From $5,510
Compare at $12,300
GIASave 58.8%3.36ct | Round | E | VVS2 | Excellent
From $5,510
Compare at $13,360
GIASave 32.9%3.36ct | Round | G | VS2 | Ideal
From $3,360
Compare at $5,010
GIASave 68.9%3.36ct | Round | E | VVS1 | Excellent
From $3,175
Compare at $10,200
GIASave 64.6%3.36ct | Round | D | VVS1 | Excellent
From $2,742
Compare at $7,745
GIASave 74.9%3.36ct | Round | D | VVS1 | Excellent
From $3,084
Compare at $12,310
GIASave 65%3.36ct | Round | D | VVS1 | Excellent
From $2,712
Compare at $7,745
GIASave 78.1%3.36ct | Round | E | VVS2 | Excellent
From $1,831
Compare at $8,350
GIASave 74.9%3.36ct | Round | D | VVS1 | Excellent
From $3,084
Compare at $12,310
IGISave 76.2%3.36ct | Round | F | SI1 | Excellent
From $1,537
Compare at $6,450
IGISave 79.9%3.36ct | Round | F | SI1 | Ideal
From $610
Compare at $3,040
IGISave 79.6%3.36ct | Round | H | VVS2 | Ideal
From $844
Compare at $4,140
IGISave 84.9%3.36ct | Round | E | VVS1 | Excellent
From $1,528
Compare at $10,130
IGISave 73.5%3.36ct | Round | D | VVS1 | Ideal
From $1,706
Compare at $6,450
IGISave 89.1%3.36ct | Round | D | IF | Ideal
From $1,874
Compare at $17,230
IGISave 88.4%3.36ct | Round | D | IF | Ideal
From $1,993
Compare at $17,230
IGISave 89.1%3.36ct | Round | D | IF | Ideal
From $1,874
Compare at $17,230
IGISave 88.4%3.36ct | Round | D | IF | Ideal
From $1,993
Compare at $17,230
IGISave 81.4%3.36ct | Round | D | VS1 | Ideal
From $1,542
Compare at $8,280
IGISave 88.2%3.36ct | Round | D | VS1 | Ideal
From $975
Compare at $8,280
IGISave 86%3.36ct | Round | D | IF | Ideal
From $2,427
Compare at $17,280
IGISave 87.2%3.36ct | Round | E | VS1 | Ideal
From $888
Compare at $6,960
IGISave 85.3%3.36ct | Round | D | VVS2 | Ideal
From $1,428
Compare at $9,710
IGISave 70.4%3.36ct | Round | E | VS2 | Ideal
From $804
Compare at $2,720
IGISave 84.9%3.36ct | Round | E | VS2 | Excellent
From $971
Compare at $6,450
IGISave 88%3.36ct | Round | E | VS1 | Ideal
From $834
Compare at $6,960
IGISave 87.2%3.36ct | Round | E | VS1 | Excellent
From $981
Compare at $7,640
IGISave 82.6%3.36ct | Round | E | VVS2 | Ideal
From $896
Compare at $5,160
IGISave 67.6%3.36ct | Round | F | VS1 | Excellent
From $827
Compare at $2,550
IGISave 89%3.36ct | Round | E | VS1 | Ideal
From $848
Compare at $7,680
IGISave 68.6%3.36ct | Round | E | VS2 | Excellent
From $824
Compare at $2,620
IGISave 58.5%3.36ct | Round | E | VS1 | Excellent
From $1,003
Compare at $2,418
GIASave 80.8%3.36ct | Round | D | VVS2 | Ideal
From $1,911
Compare at $9,950
GIASave 82.1%3.36ct | Round | D | VVS1 | Excellent
From $2,198
Compare at $12,310
GIASave 83.1%3.36ct | Round | D | VVS1 | Excellent
From $2,083
Compare at $12,310
GIASave 59.1%3.36ct | Round | D | VVS2 | Excellent
From $4,223
Compare at $10,320
GIASave 45.8%3.36ct | Round | E | VVS2 | Ideal
From $5,510
Compare at $10,160
GIASave 62.4%3.36ct | Round | D | VVS1 | Excellent
From $4,777
Compare at $12,710
GIASave 72.3%3.36ct | Round | E | VVS1 | Excellent
From $2,952
Compare at $10,660
GIASave 59.9%3.36ct | Round | D | IF | Ideal
From $11,235
Compare at $27,999
GIASave 85.1%3.36ct | Round | D | IF | Excellent
From $4,118
Compare at $27,720
IGISave 72.8%3.36ct | Round | D | VVS1 | Ideal
From $3,320
Compare at $12,200
IGISave 85.7%3.36ct | Round | D | VVS2 | Ideal
From $1,385
Compare at $9,710
IGISave 79.8%3.36ct | Round | H | VS1 | Ideal
From $631
Compare at $3,120
IGISave 69.2%3.36ct | Round | H | VS1 | Ideal
From $891
Compare at $2,890
Entry pricing in this category starts around $602.
What to Know When Shopping for 3.4 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $25,598 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 $1,414 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.
- Round brilliants command a premium due to higher rough waste during cutting. If budget matters, consider oval or cushion shapes for similar visual size.
Frequently Asked Questions
We currently track 1,440 comparable stones in this segment. Prices start around $602 and go up to $26,200.
Based on the latest market data, the average asking price is about $2,212 with a median around $1,414.
The observed spread is roughly $25,598 across tracked listings, which is about 97.7% 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 $1,414, 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 12 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 $25,598 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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