3.9 Carat Heart Lab Grown Diamond Prices Comparison
As of February 2026, 3.9 carat heart lab grown diamonds usually range from $825 to $7,814, with an average price of $1,891.In the last month, prices for these diamonds are down 0.2%.Compare 92 verified listings across 5 retailers tracked by CaratRadar.
3.9 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 92 verified 3.9-carat heart lab grown diamonds listed across 5 online retailers. Prices in this segment range from $825 to $7,814, with an average asking price of $1,891 and a median of $1,419.
The price spread of $6,989 (89.4% 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.
92 diamonds tracked in this segment
Price range: $825 to $7,814
Average price: $1,891
Median price: $1,419
Available across 5 retailers
Savings potential: up to 89.4%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
92
$825
$1,891
$1,419
$7,814
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 50.1%3.86ct | Heart | D | VS1 | Ideal
From $2,683
Compare at $5,380
IGISave 74%3.86ct | Heart | E | VS1 | Ideal
From $863
Compare at $3,315
IGISave 74.7%3.86ct | Heart | E | VVS2 | Ideal
From $1,075
Compare at $4,245
IGISave 72.7%3.86ct | Heart | D | VS1 | Ideal
From $1,075
Compare at $3,935
IGISave 90.4%3.86ct | Heart | E | VS1 | Ideal
From $855
Compare at $8,875
IGISave 50.1%3.86ct | Heart | E | VVS2 | Excellent
From $2,639
Compare at $5,290
IGISave 89.6%3.86ct | Heart | E | VS1 | Excellent
From $980
Compare at $9,380
IGISave 61.8%3.86ct | Heart | E | VVS2 | Ideal
From $1,385
Compare at $3,627
IGISave 90.7%3.86ct | Heart | E | VS1 | Ideal
From $825
Compare at $8,850
IGISave 50.5%3.87ct | Heart | D | VVS2 | Excellent
From $2,879
Compare at $5,820
IGISave 87.2%3.87ct | Heart | E | VS1 | Ideal
From $826
Compare at $6,450
IGISave 85.4%3.87ct | Heart | G | VVS2 | Ideal
From $1,174
Compare at $8,050
IGISave 50.1%3.87ct | Heart | E | VS1 | Excellent
From $2,475
Compare at $4,960
IGISave 66.6%3.87ct | Heart | F | VS2 | Excellent
From $2,225
Compare at $6,660
IGISave 84.9%3.87ct | Heart | E | VS1 | Ideal
From $826
Compare at $5,470
IGISave 74.7%3.87ct | Heart | E | VS1 | Ideal
From $842
Compare at $3,325
IGISave 90.7%3.87ct | Heart | E | VS1 | Ideal
From $826
Compare at $8,870
IGISave 90.4%3.87ct | Heart | E | VS1 | Ideal
From $849
Compare at $8,870
IGISave 57.6%3.87ct | Heart | E | VS1 | Excellent
From $2,322
Compare at $5,470
IGISave 50.2%3.87ct | Heart | E | VVS2 | Excellent
From $2,646
Compare at $5,310
IGISave 50.1%3.87ct | Heart | D | VS1 | Ideal
From $2,689
Compare at $5,390
IGISave 74.7%3.87ct | Heart | E | VVS2 | Ideal
From $1,078
Compare at $4,255
IGISave 84.2%3.88ct | Heart | E | VS1 | Excellent
From $1,121
Compare at $7,110
IGISave 83.6%3.88ct | Heart | E | VS1 | Ideal
From $927
Compare at $5,640
IGISave 50.6%3.88ct | Heart | D | VVS2 | Excellent
From $2,885
Compare at $5,840
IGISave 90.6%3.88ct | Heart | E | VS1 | Ideal
From $836
Compare at $8,925
IGISave 75.7%3.88ct | Heart | E | VS1 | Excellent
From $1,416
Compare at $5,820
IGISave 77.3%3.88ct | Heart | E | VVS1 | Very Good
From $2,452
Compare at $10,800
IGISave 50.6%3.88ct | Heart | D | VVS2 | Excellent
From $2,885
Compare at $5,840
IGISave 90.4%3.88ct | Heart | E | VS1 | Ideal
From $858
Compare at $8,925
IGISave 50.2%3.89ct | Heart | E | VS1 | Excellent
From $2,487
Compare at $4,990
IGISave 74.7%3.89ct | Heart | E | VVS2 | Ideal
From $1,083
Compare at $4,275
IGISave 90.4%3.89ct | Heart | E | VS1 | Ideal
From $860
Compare at $8,945
IGISave 50.1%3.89ct | Heart | E | VVS2 | Excellent
From $2,659
Compare at $5,330
IGISave 90.6%3.89ct | Heart | E | VS1 | Ideal
From $837
Compare at $8,945
IGISave 50.1%3.9ct | Heart | E | VS1 | Excellent
From $2,493
Compare at $5,000
IGISave 85.8%3.9ct | Heart | E | VS1 | Ideal
From $831
Compare at $5,850
IGISave 74.7%3.9ct | Heart | E | VVS2 | Ideal
From $1,086
Compare at $4,290
IGISave 50.1%3.9ct | Heart | F | VVS2 | Ideal
From $2,450
Compare at $4,910
IGISave 19.3%3.9ct | Heart | F | VS1 | Very Good
From $949
Compare at $1,176
IGISave 74.4%3.9ct | Heart | E | VVS2 | Ideal
From $1,099
Compare at $4,290
IGISave 74.8%3.9ct | Heart | D | IF | Very Good
From $7,440
Compare at $29,530
IGISave 50.1%3.9ct | Heart | E | VS1 | Excellent
From $2,493
Compare at $5,000
IGISave 84.9%3.9ct | Heart | E | VS1 | Ideal
From $831
Compare at $5,520
IGISave 90.3%3.9ct | Heart | E | VS1 | Ideal
From $861
Compare at $8,900
IGISave 49.6%3.9ct | Heart | F | VS1 | Good
From $2,399
Compare at $4,760
IGISave 74.5%3.9ct | Heart | D | VVS2 | Very Good
From $1,201
Compare at $4,715
IGISave 74.4%3.9ct | Heart | E | VVS2 | Ideal
From $1,099
Compare at $4,290
IGISave 50.1%3.91ct | Heart | E | VS1 | Excellent
From $2,499
Compare at $5,010
IGISave 50.1%3.91ct | Heart | E | VVS2 | Ideal
From $2,673
Compare at $5,360
Entry pricing in this category starts around $825.
What to Know When Shopping for 3.9 Carat Heart Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $6,989 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 $1,419 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 92 comparable stones in this segment. Prices start around $825 and go up to $7,814.
Based on the latest market data, the average asking price is about $1,891 with a median around $1,419.
The observed spread is roughly $6,989 across tracked listings, which is about 89.4% 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 $1,419, 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 5 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 $6,989 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 3.9 carat Heart diamonds.