3.4 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 3.4 carat radiant lab grown diamonds usually range from $565 to $27,968, with an average price of $4,307.In the last month, prices for these diamonds are down 2.6%.Compare 431 verified listings across 11 retailers tracked by CaratRadar.
3.4 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 431 verified 3.4-carat radiant lab grown diamonds listed across 11 online retailers. Prices in this segment range from $565 to $27,968, with an average asking price of $4,307 and a median of $3,458.
The price spread of $27,402 (98.0% 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.
431 diamonds tracked in this segment
Price range: $565 to $27,968
Average price: $4,307
Median price: $3,458
Available across 11 retailers
Savings potential: up to 98.0%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
431
$565
$4,307
$3,458
$27,968
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 76.3%GCAL | 3.4ct | Radiant | D | IF | Ideal
From $7,047
Compare at $29,710
Save 76.3%GCAL | 3.4ct | Radiant | D | IF | Excellent
From $7,047
Compare at $29,710
Save 65.9%GIA | 3.4ct | Radiant | D | VVS1 | Excellent
From $3,779
Compare at $11,090
Save 55.9%GIA | 3.4ct | Radiant | D | VVS2 | Ideal
From $4,710
Compare at $10,680
Save 74.1%GIA | 3.4ct | Radiant | D | IF | Excellent
From $6,921
Compare at $26,750
Save 46.6%GIA | 3.4ct | Radiant | D | VVS1 | Ideal
From $7,180
Compare at $13,450
Save 65.9%GIA | 3.4ct | Radiant | D | VVS1 | Excellent
From $3,779
Compare at $11,090
Save 58.2%GIA | 3.4ct | Radiant | D | VVS2 | Excellent
From $3,163
Compare at $7,574
Save 71.7%GIA | 3.4ct | Radiant | D | VS1 | Excellent
From $2,766
Compare at $9,770
Save 44.8%IGI | 3.4ct | Radiant | E | VVS1 | Excellent
From $6,753
Compare at $12,229
Save 50.6%IGI | 3.4ct | Radiant | D | VS1 | Ideal
From $2,393
Compare at $4,840
Save 70.6%IGI | 3.4ct | Radiant | D | VS1 | Ideal
From $1,419
Compare at $4,820
Save 41.6%IGI | 3.4ct | Radiant | D | VVS2 | Ideal
From $2,400
Compare at $4,110
Save 64.8%IGI | 3.4ct | Radiant | D | VVS1 | Excellent
From $2,554
Compare at $7,250
Save 84.1%IGI | 3.4ct | Radiant | G | VVS2 | Excellent
From $1,013
Compare at $6,390
IGI | 3.4ct | Radiant | E | VS2 | Very Good
From $1,869
Compare at $1,870
Save 62.8%IGI | 3.4ct | Radiant | D | IF | Excellent
From $4,674
Compare at $12,570
Save 29.1%IGI | 3.4ct | Radiant | FANCY | VS1 | Ideal
From $3,544
Compare at $4,996
Save 75.8%IGI | 3.4ct | Radiant | D | VVS1 | Ideal
From $2,655
Compare at $10,950
Save 73.3%IGI | 3.4ct | Radiant | D | VVS1 | Ideal
From $1,824
Compare at $6,840
Save 63.8%IGI | 3.4ct | Radiant | F | VS1 | Excellent
From $971
Compare at $2,685
Save 76.2%IGI | 3.4ct | Radiant | D | VS1 | Very Good
From $1,499
Compare at $6,300
Save 78.5%IGI | 3.4ct | Radiant | G | VVS2 | Ideal
From $850
Compare at $3,960
Save 75.6%IGI | 3.4ct | Radiant | E | VS1 | Ideal
From $1,263
Compare at $5,180
Save 64.3%IGI | 3.4ct | Radiant | E | VS1 | Ideal
From $1,043
Compare at $2,920
Save 76.2%IGI | 3.4ct | Radiant | E | VVS2 | Ideal
From $1,503
Compare at $6,310
Save 55.2%IGI | 3.4ct | Radiant | D | IF | Excellent
From $4,827
Compare at $10,775
Save 83.8%IGI | 3.4ct | Radiant | E | SI1 | Ideal
From $902
Compare at $5,570
Save 76.4%IGI | 3.4ct | Radiant | D | VVS2 | Ideal
From $1,471
Compare at $6,230
Save 75%IGI | 3.4ct | Radiant | F | VS2 | Very Good
From $912
Compare at $3,650
Save 61.9%IGI | 3.4ct | Radiant | F | VS1 | Very Good
From $983
Compare at $2,580
Save 63%IGI | 3.4ct | Radiant | E | VS1 | Very Good
From $1,043
Compare at $2,820
Save 73.8%IGI | 3.4ct | Radiant | F | VS1 | Very Good
From $1,343
Compare at $5,120
Save 74.6%IGI | 3.4ct | Radiant | D | VS1 | Very Good
From $1,179
Compare at $4,640
Save 76.1%IGI | 3.4ct | Radiant | E | VVS2 | Ideal
From $1,212
Compare at $5,070
Save 25.5%IGI | 3.4ct | Radiant | E | VVS2 | Very Good
From $1,058
Compare at $1,421
Save 82.8%IGI | 3.4ct | Radiant | D | VVS1 | Excellent
From $1,285
Compare at $7,475
Save 20%IGI | 3.4ct | Radiant | E | VS1 | Very Good
From $1,043
Compare at $1,303
Save 56%IGI | 3.4ct | Radiant | E | VS2 | Ideal
From $1,751
Compare at $3,980
IGI | 3.4ct | Radiant | G | VS2 | Very Good
From $784
Compare at $3,500
Save 65.9%GIA | 3.41ct | Radiant | D | VVS1 | Excellent
From $3,790
Compare at $11,130
Save 72.5%GIA | 3.41ct | Radiant | E | VVS1 | Excellent
From $3,555
Compare at $12,920
Save 61.6%GIA | 3.41ct | Radiant | E | SI1 | Ideal
From $3,342
Compare at $8,700
Save 72.5%GIA | 3.41ct | Radiant | D | VVS1 | Excellent
From $3,790
Compare at $13,770
Save 59.9%GIA | 3.41ct | Radiant | E | VS1 | Excellent
From $2,135
Compare at $5,330
Save 58.3%GIA | 3.41ct | Radiant | D | VVS1 | Excellent
From $3,790
Compare at $9,100
Save 72.4%IGI | 3.41ct | Radiant | D | IF | Ideal
From $4,098
Compare at $14,860
Save 71.5%IGI | 3.41ct | Radiant | D | VVS2 | Ideal
From $2,488
Compare at $8,720
Save 67.7%IGI | 3.41ct | Radiant | D | VVS1 | Ideal
From $2,022
Compare at $6,270
Save 64.5%IGI | 3.41ct | Radiant | D | VVS1 | Excellent
From $3,020
Compare at $8,510
Entry pricing in this category starts around $565.
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 $27,402 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 431 comparable stones in this segment. Prices start around $565 and go up to $27,968.
Based on the latest market data, the average asking price is about $4,307 with a median around $3,458.
The observed spread is roughly $27,402 across tracked listings, which is about 98.0% 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 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 $27,402 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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