1.4 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 1.4 carat radiant lab grown diamonds usually range from $255 to $3,884, with an average price of $929.In the last month, prices for these diamonds are down 0.7%.Compare 2,074 verified listings across 11 retailers tracked by CaratRadar.
1.4 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 2,074 verified 1.4-carat radiant lab grown diamonds listed across 11 online retailers. Prices in this segment range from $255 to $3,884, with an average asking price of $929 and a median of $810.
The price spread of $3,629 (93.4% 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.
2,074 diamonds tracked in this segment
Price range: $255 to $3,884
Average price: $929
Median price: $810
Available across 11 retailers
Savings potential: up to 93.4%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
2,074
$255
$929
$810
$3,884
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 66.1%GIA | 1.4ct | Radiant | D | IF | Ideal
From $1,398
Compare at $4,120
GIA | 1.4ct | Radiant | D | VS2 | Excellent
From $806
Compare at $810
Save 41.8%GIA | 1.4ct | Radiant | E | VVS2 | Ideal
From $1,840
Compare at $3,160
Save 72.9%GIA | 1.4ct | Radiant | E | VVS1 | Excellent
From $1,182
Compare at $4,370
Save 72.8%GIA | 1.4ct | Radiant | E | VS1 | Excellent
From $721
Compare at $2,650
Save 38.4%IGI | 1.4ct | Radiant | F | VS1 | Ideal
From $2,764
Compare at $4,489
IGI | 1.4ct | Radiant | G | VS2 | Ideal
From $2,578
Compare at $2,580
Save 43.9%IGI | 1.4ct | Radiant | G | VS1 | Ideal
From $1,530
Compare at $2,725
Save 36.6%IGI | 1.4ct | Radiant | H | VS2 | Ideal
From $2,335
Compare at $3,685
IGI | 1.4ct | Radiant | H | VS1 | Ideal
From $2,472
Compare at $2,475
Save 36.4%IGI | 1.4ct | Radiant | E | VVS2 | Ideal
From $3,191
Compare at $5,020
Save 74%IGI | 1.4ct | Radiant | G | VS1 | Excellent
From $535
Compare at $2,060
Save 44.4%IGI | 1.4ct | Radiant | G | VVS2 | Ideal
From $639
Compare at $1,150
Save 73.2%IGI | 1.4ct | Radiant | G | VS1 | Very Good
From $445
Compare at $1,660
Save 73.5%IGI | 1.4ct | Radiant | G | VS2 | Very Good
From $416
Compare at $1,570
Save 71.5%IGI | 1.4ct | Radiant | F | VS1 | Ideal
From $677
Compare at $2,370
Save 33.4%IGI | 1.4ct | Radiant | E | VVS2 | Ideal
From $617
Compare at $926
Save 74.3%IGI | 1.4ct | Radiant | E | VVS2 | Excellent
From $478
Compare at $1,860
Save 48.2%IGI | 1.4ct | Radiant | F | VVS2 | Very Good
From $368
Compare at $710
Save 77.7%IGI | 1.4ct | Radiant | D | VVS2 | Excellent
From $519
Compare at $2,330
Save 57.5%IGI | 1.4ct | Radiant | G | VS1 | Ideal
From $413
Compare at $970
Save 74.3%IGI | 1.4ct | Radiant | E | VVS2 | Excellent
From $478
Compare at $1,860
Save 73.2%IGI | 1.4ct | Radiant | G | VS1 | Very Good
From $445
Compare at $1,660
Save 71.5%IGI | 1.4ct | Radiant | E | VVS2 | Ideal
From $651
Compare at $2,280
Save 73%IGI | 1.4ct | Radiant | G | VVS2 | Very Good
From $462
Compare at $1,710
Save 24.6%IGI | 1.4ct | Radiant | D | VVS2 | Excellent
From $564
Compare at $748
Save 72.9%IGI | 1.4ct | Radiant | F | VS1 | Ideal
From $491
Compare at $1,810
Save 73%IGI | 1.4ct | Radiant | G | VVS2 | Very Good
From $462
Compare at $1,710
Save 19.9%IGI | 1.4ct | Radiant | H | VS2 | Ideal
From $530
Compare at $662
Save 72.9%IGI | 1.4ct | Radiant | F | VS1 | Ideal
From $491
Compare at $1,810
Save 73%IGI | 1.4ct | Radiant | E | VS1 | Ideal
From $462
Compare at $1,710
Save 73.2%IGI | 1.4ct | Radiant | F | VS2 | Very Good
From $456
Compare at $1,700
Save 73.2%IGI | 1.4ct | Radiant | F | VS2 | Very Good
From $456
Compare at $1,700
Save 57%IGI | 1.4ct | Radiant | F | VS2 | Excellent
From $421
Compare at $980
Save 57.2%IGI | 1.4ct | Radiant | G | VS2 | Ideal
From $410
Compare at $960
Save 50.4%IGI | 1.4ct | Radiant | D | VVS2 | Ideal
From $583
Compare at $1,175
Save 80.5%IGI | 1.4ct | Radiant | D | IF | Excellent
From $744
Compare at $3,820
Save 65.7%IGI | 1.4ct | Radiant | E | VVS1 | Excellent
From $566
Compare at $1,650
Save 72.5%IGI | 1.4ct | Radiant | F | VVS1 | Very Good
From $542
Compare at $1,970
Save 72.7%IGI | 1.4ct | Radiant | E | VS1 | Very Good
From $496
Compare at $1,820
Save 65%IGI | 1.4ct | Radiant | G | VVS1 | Excellent
From $476
Compare at $1,360
IGI | 1.4ct | Radiant | E | VS1 | Ideal
From $462
Compare at $488
Save 35.1%IGI | 1.4ct | Radiant | E | VS1 | Very Good
From $515
Compare at $794
Save 25.8%IGI | 1.4ct | Radiant | E | VVS2 | Ideal
From $561
Compare at $755
Save 74.3%IGI | 1.4ct | Radiant | E | VVS2 | Excellent
From $478
Compare at $1,860
Save 72.8%IGI | 1.4ct | Radiant | E | VS1 | Ideal
From $372
Compare at $1,370
Save 74.2%IGI | 1.4ct | Radiant | G | VVS2 | Ideal
From $384
Compare at $1,490
Save 64.5%IGI | 1.4ct | Radiant | G | VS1 | Excellent
From $409
Compare at $1,150
Save 77.6%IGI | 1.4ct | Radiant | D | VS1 | Excellent
From $427
Compare at $1,910
Save 77.9%IGI | 1.4ct | Radiant | E | VS1 | Ideal
From $378
Compare at $1,710
Entry pricing in this category starts around $255.
What to Know When Shopping for 1.4 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $3,629 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 $810 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 2,074 comparable stones in this segment. Prices start around $255 and go up to $3,884.
Based on the latest market data, the average asking price is about $929 with a median around $810.
The observed spread is roughly $3,629 across tracked listings, which is about 93.4% 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 $810, 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 $3,629 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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