4.3 Carat Heart Lab Grown Diamond Prices Comparison
As of April 2026, 4.3 carat heart lab grown diamonds usually range from $775 to $42,976, with an average price of $4,844.In the last month, prices for these diamonds are down 0.8%.Compare 50 verified listings across 6 retailers tracked by CaratRadar.
4.3 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 50 verified 4.3-carat heart lab grown diamonds listed across 6 online retailers. Prices in this segment range from $775 to $42,976, with an average asking price of $4,844 and a median of $3,253.
The price spread of $42,201 (98.2% 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.
50 diamonds tracked in this segment
Price range: $775 to $42,976
Average price: $4,844
Median price: $3,253
Available across 6 retailers
Savings potential: up to 98.2%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
50
$775
$4,844
$3,253
$42,976
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIA | 4.3ct | Heart | G | VS2 | Ideal
From $6,710
Compare at $6,988
IGI | 4.3ct | Heart | I | VS1 | Ideal
From $1,599
Compare at $1,685
Save 78.4%IGI | 4.3ct | Heart | F | VS2 | Ideal
From $1,616
Compare at $7,480
Save 83%IGI | 4.3ct | Heart | E | VVS2 | Ideal
From $1,751
Compare at $10,290
Save 77.4%GIA | 4.31ct | Heart | D | VVS1 | Excellent
From $7,050
Compare at $31,210
Save 46.7%IGI | 4.31ct | Heart | D | VVS1 | Very Good
From $4,228
Compare at $7,930
Save 86.3%IGI | 4.31ct | Heart | F | VVS2 | Excellent
From $1,280
Compare at $9,320
Save 74.9%IGI | 4.31ct | Heart | E | VVS2 | Ideal
From $1,189
Compare at $4,740
IGI | 4.31ct | Heart | FANCY | VS2 | Ideal
From $4,018
Compare at $6,846
Save 84.7%IGI | 4.31ct | Heart | F | VS1 | Very Good
From $1,320
Compare at $8,600
Save 38.8%GIA | 4.32ct | Heart | F | VS1 | Ideal
From $5,298
Compare at $8,660
Save 79.8%IGI | 4.32ct | Heart | F | VS1 | Ideal
From $1,747
Compare at $8,650
Save 80.2%IGI | 4.32ct | Heart | G | VS1 | Ideal
From $1,469
Compare at $7,410
Save 87.9%IGI | 4.32ct | Heart | E | VVS2 | Very Good
From $1,257
Compare at $10,380
Save 79.7%IGI | 4.33ct | Heart | D | VVS2 | Ideal
From $5,235
Compare at $25,780
Save 74%IGI | 4.33ct | Heart | H | VVS2 | Ideal
From $1,790
Compare at $6,890
Save 87.6%IGI | 4.33ct | Heart | E | VS1 | Excellent
From $1,273
Compare at $10,240
Save 75.5%IGI | 4.33ct | Heart | F | VVS2 | Ideal
From $1,472
Compare at $6,010
Save 75.5%IGI | 4.33ct | Heart | E | VVS2 | Ideal
From $1,166
Compare at $4,760
Save 74.3%IGI | 4.33ct | Heart | E | VVS2 | Excellent
From $1,180
Compare at $4,585
Save 49.7%IGI | 4.33ct | Heart | D | VVS2 | Very Good
From $1,531
Compare at $3,044
Save 28.8%IGI | 4.34ct | Heart | E | VVS2 | Ideal
From $1,625
Compare at $2,284
Save 85.5%IGI | 4.35ct | Heart | D | VS1 | Excellent
From $1,551
Compare at $10,680
Save 75.5%IGI | 4.35ct | Heart | E | VVS2 | Ideal
From $1,171
Compare at $4,785
Save 87.8%IGI | 4.35ct | Heart | D | VVS2 | Very Good
From $1,499
Compare at $12,310
Save 76.6%GIA | 4.36ct | Heart | D | IF | Excellent
From $10,071
Compare at $43,130
GIA | 4.36ct | Heart | G | VS2 | Ideal
From $6,800
Compare at $7,085
Save 72.4%IGI | 4.36ct | Heart | E | VS1 | Ideal
From $3,917
Compare at $14,170
Save 33.7%IGI | 4.36ct | Heart | F | VVS1 | Ideal
From $2,471
Compare at $3,725
Save 75.5%IGI | 4.36ct | Heart | E | VVS2 | Ideal
From $1,174
Compare at $4,795
Save 87.5%IGI | 4.36ct | Heart | E | VVS2 | Very Good
From $1,309
Compare at $10,480
Save 82.5%IGI | 4.37ct | Heart | G | VVS2 | Ideal
From $1,472
Compare at $8,390
Save 81.1%IGI | 4.37ct | Heart | F | VS1 | Very Good
From $1,445
Compare at $7,627
Save 86.3%IGI | 4.37ct | Heart | D | VS1 | Excellent
From $1,472
Compare at $10,720
Save 75.5%IGI | 4.37ct | Heart | E | VVS2 | Ideal
From $1,177
Compare at $4,805
Save 84.4%IGI | 4.37ct | Heart | E | VS2 | Ideal
From $1,305
Compare at $8,340
Save 73.8%IGI | 4.37ct | Heart | F | VS1 | Excellent
From $2,272
Compare at $8,670
Save 76.7%IGI | 4.38ct | Heart | E | VS1 | Ideal
From $1,497
Compare at $6,430
Save 72%IGI | 4.38ct | Heart | E | VS1 | Ideal
From $1,673
Compare at $5,970
Save 85.1%IGI | 4.38ct | Heart | E | VVS2 | Very Good
From $1,575
Compare at $10,540
Save 87.9%IGI | 4.38ct | Heart | E | VVS2 | Very Good
From $1,274
Compare at $10,530
GIA | 4.39ct | Heart | E | VVS2 | Ideal
From $4,856
Compare at $4,860
Save 73%IGI | 4.39ct | Heart | E | VVS2 | Ideal
From $4,277
Compare at $15,870
Save 49.7%IGI | 4.39ct | Heart | D | IF | Excellent
From $13,417
Compare at $26,700
Save 84.5%IGI | 4.39ct | Heart | F | VVS2 | Ideal
From $1,474
Compare at $9,500
Save 87.1%IGI | 4.39ct | Heart | F | VS1 | Ideal
From $1,125
Compare at $8,750
Save 86.8%IGI | 4.39ct | Heart | E | VS1 | Ideal
From $1,375
Compare at $10,380
Save 87.9%IGI | 4.39ct | Heart | D | VVS2 | Ideal
From $1,500
Compare at $12,360
Save 85.5%IGI | 4.39ct | Heart | D | VS1 | Very Good
From $1,565
Compare at $10,780
Save 75.6%IGI | 4.4ct | Heart | E | VVS2 | Ideal
From $1,307
Compare at $5,350
Entry pricing in this category starts around $775.
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 $42,201 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 $3,253 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 50 comparable stones in this segment. Prices start around $775 and go up to $42,976.
Based on the latest market data, the average asking price is about $4,844 with a median around $3,253.
The observed spread is roughly $42,201 across tracked listings, which is about 98.2% 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 $3,253, 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 6 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 $42,201 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
4.2 Carat Heart Lab Grown Diamond Prices
4.1 Carat Heart Lab Grown Diamond Prices
4 Carat Heart Lab Grown Diamond Prices
4.4 Carat Heart Lab Grown Diamond Prices
3.9 Carat Heart Lab Grown Diamond Prices
4.5 Carat Heart Lab Grown Diamond Prices
3.8 Carat Heart Lab Grown Diamond Prices
4.3 Carat Round Lab Grown Diamond Prices
4.3 Carat Oval Lab Grown Diamond Prices
4.3 Carat Radiant Lab Grown Diamond Prices
4.3 Carat Emerald Lab Grown Diamond Prices
4.3 Carat Cushion Lab Grown Diamond Prices
Tracking Lab Grown inventory for 4.3 carat Heart diamonds.