1.4 Carat Radiant Lab Grown Diamond Prices Comparison
As of May 2026, 1.4 carat radiant lab grown diamonds usually range from $190 to $3,716, with an average price of $885.In the last month, prices for these diamonds are down 3.1%.Compare 1,066 verified listings across 8 retailers tracked by CaratRadar.
1.4 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,066 verified 1.4-carat radiant lab grown diamonds listed across 8 online retailers. Prices in this segment range from $190 to $3,716, with an average asking price of $885 and a median of $767.
The price spread of $3,526 (94.9% 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.
1,066 diamonds tracked in this segment
Price range: $190 to $3,716
Average price: $885
Median price: $767
Available across 8 retailers
Savings potential: up to 94.9%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
1,066
$190
$885
$767
$3,716
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 78.7%IGI | 1.45ct | Radiant | F | VS2 | Excellent
From $215
Compare at $1,010
Save 65.3%IGI | 1.41ct | Radiant | D | VS1 | Very Good
From $216
Compare at $622
Save 75.4%IGI | 1.47ct | Radiant | E | VVS2 | Very Good
From $217
Compare at $881
Save 69.4%IGI | 1.43ct | Radiant | G | VVS2 | Ideal
From $218
Compare at $713
Save 63%IGI | 1.41ct | Radiant | E | VS1 | Very Good
From $219
Compare at $592
Save 64%IGI | 1.4ct | Radiant | D | VS1 | Very Good
From $221
Compare at $614
Save 73%IGI | 1.41ct | Radiant | E | VVS2 | Very Good
From $221
Compare at $818
Save 77.9%IGI | 1.41ct | Radiant | F | VS1 | Ideal
From $223
Compare at $1,010
Save 65.5%IGI | 1.45ct | Radiant | D | VS2 | Very Good
From $223
Compare at $647
Save 64.5%IGI | 1.42ct | Radiant | D | VS1 | Very Good
From $224
Compare at $631
Save 64.8%IGI | 1.43ct | Radiant | D | VS1 | Very Good
From $225
Compare at $639
Save 72.9%IGI | 1.46ct | Radiant | D | VS2 | Excellent
From $226
Compare at $833
Save 73.7%IGI | 1.45ct | Radiant | E | VVS2 | Very Good
From $227
Compare at $862
Save 79.1%IGI | 1.44ct | Radiant | F | VS1 | Ideal
From $228
Compare at $1,090
IGI | 1.41ct | Radiant | D | VS1 | Ideal
From $228
Compare at $952
Save 79.3%IGI | 1.46ct | Radiant | G | VS2 | Ideal
From $230
Compare at $1,110
Save 71.4%IGI | 1.42ct | Radiant | D | VS1 | Very Good
From $230
Compare at $803
Save 69.9%IGI | 1.42ct | Radiant | E | VS1 | Very Good
From $230
Compare at $765
Save 74.1%IGI | 1.48ct | Radiant | E | VVS2 | Very Good
From $232
Compare at $896
Save 69.7%IGI | 1.4ct | Radiant | D | VS2 | Ideal
From $234
Compare at $772
Save 78.2%IGI | 1.45ct | Radiant | G | VS1 | Excellent
From $235
Compare at $1,080
Save 75.9%IGI | 1.4ct | Radiant | F | VS2 | Excellent
From $236
Compare at $980
Save 79.7%IGI | 1.42ct | Radiant | F | VVS2 | Ideal
From $239
Compare at $1,180
Save 27.7%IGI | 1.44ct | Radiant | F | VVS1 | Ideal
From $239
Compare at $331
Save 78.9%IGI | 1.41ct | Radiant | F | VS1 | Excellent
From $241
Compare at $1,140
Save 78.1%IGI | 1.42ct | Radiant | G | VS1 | Ideal
From $243
Compare at $1,110
Save 64.4%IGI | 1.41ct | Radiant | D | VVS2 | Very Good
From $243
Compare at $683
Save 69.8%IGI | 1.44ct | Radiant | E | VS1 | Excellent
From $244
Compare at $807
Save 78.1%IGI | 1.4ct | Radiant | G | VS2 | Ideal
From $248
Compare at $1,130
Save 71.4%IGI | 1.49ct | Radiant | D | VS2 | Ideal
From $249
Compare at $871
Save 73.7%IGI | 1.42ct | Radiant | H | VS1 | Ideal
From $250
Compare at $950
Save 68.9%IGI | 1.45ct | Radiant | E | VVS1 | Very Good
From $250
Compare at $803
Save 65.3%IGI | 1.45ct | Radiant | D | VVS2 | Very Good
From $250
Compare at $720
Save 63%IGI | 1.4ct | Radiant | D | VVS2 | Very Good
From $250
Compare at $675
Save 79.8%IGI | 1.41ct | Radiant | D | VS2 | Excellent
From $251
Compare at $1,240
Save 71.1%IGI | 1.41ct | Radiant | D | VVS2 | Very Good
From $251
Compare at $870
Save 63.2%IGI | 1.41ct | Radiant | D | VVS2 | Very Good
From $252
Compare at $684
Save 66.9%IGI | 1.41ct | Radiant | E | VVS1 | Very Good
From $252
Compare at $762
Save 71.3%IGI | 1.48ct | Radiant | F | VVS2 | Ideal
From $253
Compare at $881
Save 71.3%IGI | 1.42ct | Radiant | D | VVS2 | Very Good
From $253
Compare at $881
Save 64.2%IGI | 1.47ct | Radiant | E | VVS2 | Ideal
From $255
Compare at $713
Save 63.7%IGI | 1.43ct | Radiant | D | VVS2 | Very Good
From $255
Compare at $702
Save 71.7%IGI | 1.44ct | Radiant | D | VVS2 | Ideal
From $256
Compare at $904
Save 75.7%IGI | 1.43ct | Radiant | F | VS2 | Ideal
From $258
Compare at $1,060
Save 71.9%IGI | 1.45ct | Radiant | D | VVS2 | Very Good
From $258
Compare at $917
Save 71.9%IGI | 1.45ct | Radiant | D | VVS2 | Very Good
From $258
Compare at $917
Save 75.7%IGI | 1.44ct | Radiant | F | VS2 | Ideal
From $260
Compare at $1,070
Save 68.3%IGI | 1.44ct | Radiant | D | VS1 | Very Good
From $260
Compare at $821
Save 68.5%IGI | 1.41ct | Radiant | E | VVS2 | Very Good
From $260
Compare at $826
Save 72%IGI | 1.46ct | Radiant | D | VVS2 | Very Good
From $260
Compare at $929
Entry pricing in this category starts around $190.
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 $3,526 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 $767 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 1,066 comparable stones in this segment. Prices start around $190 and go up to $3,716.
Based on the latest market data, the average asking price is about $885 with a median around $767.
The observed spread is roughly $3,526 across tracked listings, which is about 94.9% 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 $885. The median price is $767, 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 8 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 $3,526 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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