4.3 Carat Heart Lab Grown Diamond Prices Comparison
As of February 2026, 4.3 carat heart lab grown diamonds usually range from $1,062 to $16,445, with an average price of $2,521.In the last month, prices for these diamonds are up 0.6%.Compare 57 verified listings across 7 retailers tracked by CaratRadar.
4.3 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 57 verified 4.3-carat heart lab grown diamonds listed across 7 online retailers. Prices in this segment range from $1,062 to $16,445, with an average asking price of $2,521 and a median of $1,469.
The price spread of $15,383 (93.5% 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.
57 diamonds tracked in this segment
Price range: $1,062 to $16,445
Average price: $2,521
Median price: $1,469
Available across 7 retailers
Savings potential: up to 93.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
57
$1,062
$2,521
$1,469
$16,445
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 69.6%4.25ct | Heart | E | IF | Ideal
From $15,712
Compare at $51,760
IGISave 65.2%4.25ct | Heart | E | VS1 | Excellent
From $3,173
Compare at $9,113
IGISave 84.7%4.25ct | Heart | F | VS1 | Ideal
From $1,584
Compare at $10,380
IGISave 69.1%4.25ct | Heart | E | VS2 | Excellent
From $2,508
Compare at $8,110
IGISave 80.8%4.25ct | Heart | E | VVS2 | Ideal
From $1,975
Compare at $10,260
IGISave 87.9%4.25ct | Heart | D | VS1 | Excellent
From $1,259
Compare at $10,430
IGISave 59.5%4.25ct | Heart | E | VS1 | Ideal
From $1,311
Compare at $3,238
IGISave 83.5%4.25ct | Heart | F | VS1 | Ideal
From $1,719
Compare at $10,430
IGISave 85.6%4.25ct | Heart | D | VVS2 | Ideal
From $1,727
Compare at $11,970
IGISave 86.6%4.25ct | Heart | D | VS1 | Excellent
From $1,455
Compare at $10,880
IGISave 56.8%4.26ct | Heart | J | VS1 | Ideal
From $1,774
Compare at $4,110
IGISave 82.9%4.26ct | Heart | G | VS2 | Ideal
From $1,383
Compare at $8,110
GIASave 33.4%4.26ct | Heart | D | IF | Ideal
From $16,445
Compare at $24,693
IGISave 77.9%4.26ct | Heart | E | VS1 | Ideal
From $2,451
Compare at $11,090
IGISave 62.4%4.26ct | Heart | E | VVS2 | Very Good
From $1,150
Compare at $3,059
IGISave 40%4.26ct | Heart | H | VS1 | Ideal
From $1,753
Compare at $2,920
IGISave 84.9%4.27ct | Heart | E | VS1 | Ideal
From $1,850
Compare at $12,230
IGISave 39.9%4.27ct | Heart | H | VS1 | Ideal
From $1,757
Compare at $2,925
IGISave 87.8%4.27ct | Heart | E | VVS2 | Excellent
From $1,251
Compare at $10,260
IGISave 62.2%4.27ct | Heart | E | VS1 | Ideal
From $1,126
Compare at $2,982
IGISave 83.5%4.27ct | Heart | G | VS1 | Ideal
From $1,452
Compare at $8,820
IGISave 70.5%4.27ct | Heart | F | VVS1 | Very Good
From $3,107
Compare at $10,550
IGISave 87.7%4.27ct | Heart | E | VVS2 | Ideal
From $1,251
Compare at $10,210
IGISave 75.8%4.28ct | Heart | D | VVS1 | Ideal
From $6,509
Compare at $26,890
IGISave 86.5%4.28ct | Heart | E | VVS1 | Very Good
From $1,597
Compare at $11,810
IGISave 62.2%4.28ct | Heart | E | VS2 | Ideal
From $1,085
Compare at $2,873
IGISave 48.9%4.28ct | Heart | FANCY | VS2 | Very Good
From $1,353
Compare at $2,649
IGISave 81.8%4.28ct | Heart | E | VVS1 | Ideal
From $3,072
Compare at $16,920
IGISave 85.4%4.28ct | Heart | D | VS2 | Ideal
From $1,294
Compare at $8,870
IGISave 67.7%4.29ct | Heart | E | VVS1 | Excellent
From $3,845
Compare at $11,890
IGI4.29ct | Heart | E | VS2 | Very Good
From $1,391
Compare at $1,492
IGISave 89.1%4.29ct | Heart | D | VVS2 | Ideal
From $1,327
Compare at $12,130
IGISave 73.1%4.29ct | Heart | F | SI1 | Ideal
From $1,852
Compare at $6,880
IGISave 85.8%4.29ct | Heart | E | VS1 | Very Good
From $1,159
Compare at $8,138
IGISave 80.8%4.29ct | Heart | E | VVS2 | Ideal
From $1,991
Compare at $10,350
IGISave 85.5%4.3ct | Heart | F | VS2 | Ideal
From $1,335
Compare at $9,210
IGISave 86.2%4.3ct | Heart | E | VVS1 | Very Good
From $1,634
Compare at $11,860
IGISave 40.5%4.3ct | Heart | I | VS1 | Ideal
From $1,599
Compare at $2,686
IGISave 88%4.3ct | Heart | E | VVS2 | Ideal
From $1,233
Compare at $10,290
GIA4.3ct | Heart | G | VS2 | Ideal
From $6,710
Compare at $6,988
GIASave 82.3%4.31ct | Heart | D | VVS1 | Excellent
From $5,260
Compare at $29,720
IGISave 53.3%4.31ct | Heart | D | VVS1 | Very Good
From $3,704
Compare at $7,930
IGISave 87.2%4.31ct | Heart | F | VVS2 | Excellent
From $1,195
Compare at $9,330
IGISave 87.7%4.31ct | Heart | E | VVS2 | Ideal
From $1,273
Compare at $10,310
GIASave 51.6%4.32ct | Heart | F | VS1 | Ideal
From $5,298
Compare at $10,950
IGISave 83.5%4.32ct | Heart | G | VS1 | Ideal
From $1,469
Compare at $8,910
IGISave 83.6%4.32ct | Heart | F | VS1 | Ideal
From $1,747
Compare at $10,650
IGISave 88%4.33ct | Heart | E | VS1 | Excellent
From $1,233
Compare at $10,240
IGISave 83.5%4.33ct | Heart | H | VVS2 | Ideal
From $1,135
Compare at $6,890
IGISave 88.6%4.33ct | Heart | F | VVS2 | Ideal
From $1,062
Compare at $9,310
Entry pricing in this category starts around $1,062.
What to Know When Shopping for 4.3 Carat Heart Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $15,383 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 $1,469 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.
- Heart-shaped diamonds require excellent symmetry to look balanced. Aim for carat weights above 0.5 where the shape is clearly visible.
Frequently Asked Questions
We currently track 57 comparable stones in this segment. Prices start around $1,062 and go up to $16,445.
Based on the latest market data, the average asking price is about $2,521 with a median around $1,469.
The observed spread is roughly $15,383 across tracked listings, which is about 93.5% 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 $1,469, 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 7 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 $15,383 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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Tracking Lab Grown inventory for 4.3 carat Heart diamonds.