3.9 Carat Heart Lab Grown Diamond Prices Comparison
As of April 2026, 3.9 carat heart lab grown diamonds usually range from $730 to $19,291, with an average price of $3,240.In the last month, prices for these diamonds are down 0.8%.Compare 50 verified listings across 5 retailers tracked by CaratRadar.
3.9 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 50 verified 3.9-carat heart lab grown diamonds listed across 5 online retailers. Prices in this segment range from $730 to $19,291, with an average asking price of $3,240 and a median of $2,399.
The price spread of $18,561 (96.2% 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: $730 to $19,291
Average price: $3,240
Median price: $2,399
Available across 5 retailers
Savings potential: up to 96.2%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
50
$730
$3,240
$2,399
$19,291
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 53.3%IGI | 3.9ct | Heart | F | VS1 | Good
From $2,223
Compare at $4,760
Save 73.7%IGI | 3.9ct | Heart | E | VVS2 | Ideal
From $1,127
Compare at $4,290
Save 69.3%IGI | 3.9ct | Heart | D | VVS2 | Very Good
From $1,447
Compare at $4,715
Save 75.3%IGI | 3.9ct | Heart | E | VVS2 | Ideal
From $1,061
Compare at $4,290
IGI | 3.9ct | Heart | E | VVS2 | Ideal
From $1,267
Compare at $7,190
Save 74.8%IGI | 3.9ct | Heart | D | IF | Very Good
From $7,440
Compare at $29,530
Save 74.4%IGI | 3.91ct | Heart | E | VS1 | Ideal
From $1,118
Compare at $4,360
Save 67.3%IGI | 3.91ct | Heart | E | VS1 | Excellent
From $1,061
Compare at $3,245
Save 15.2%IGI | 3.91ct | Heart | D | VVS2 | Ideal
From $4,730
Compare at $5,580
Save 76.5%IGI | 3.91ct | Heart | E | VS1 | Ideal
From $1,307
Compare at $5,560
Save 71.9%IGI | 3.91ct | Heart | D | VVS1 | Ideal
From $3,547
Compare at $12,630
Save 81.5%IGI | 3.91ct | Heart | E | VVS2 | Very Good
From $1,267
Compare at $6,860
Save 76.9%IGI | 3.91ct | Heart | D | IF | Excellent
From $6,520
Compare at $28,270
Save 75.2%IGI | 3.92ct | Heart | E | VS1 | Very Good
From $1,912
Compare at $7,700
Save 15.2%IGI | 3.92ct | Heart | D | VVS2 | Excellent
From $4,740
Compare at $5,590
Save 68%IGI | 3.92ct | Heart | E | VS1 | Ideal
From $1,078
Compare at $3,370
Save 51%IGI | 3.92ct | Heart | E | VS2 | Excellent
From $2,234
Compare at $4,560
Save 79.3%IGI | 3.92ct | Heart | E | VVS2 | Ideal
From $1,207
Compare at $5,840
Save 15.1%IGI | 3.93ct | Heart | D | VVS2 | Excellent
From $4,755
Compare at $5,600
Save 67.3%IGI | 3.93ct | Heart | E | VS1 | Excellent
From $1,067
Compare at $3,260
Save 75.3%IGI | 3.93ct | Heart | E | VVS2 | Ideal
From $1,069
Compare at $4,320
Save 68.4%IGI | 3.93ct | Heart | E | VS1 | Ideal
From $1,067
Compare at $3,375
Save 63.7%GIA | 3.94ct | Heart | E | VVS2 | Excellent
From $3,618
Compare at $9,956
Save 25.8%IGI | 3.94ct | Heart | D | VS1 | Excellent
From $3,860
Compare at $5,200
Save 68.4%IGI | 3.94ct | Heart | E | VS1 | Ideal
From $1,069
Compare at $3,385
Save 77.2%GIA | 3.95ct | Heart | D | IF | Ideal
From $7,944
Compare at $34,830
Save 77.9%IGI | 3.95ct | Heart | D | VVS2 | Ideal
From $2,391
Compare at $10,820
Save 75.3%IGI | 3.95ct | Heart | F | VVS2 | Very Good
From $1,280
Compare at $5,180
Save 67.8%IGI | 3.96ct | Heart | E | VS2 | Ideal
From $1,033
Compare at $3,205
Save 81.8%IGI | 3.96ct | Heart | D | VS1 | Ideal
From $1,196
Compare at $6,580
Save 74.2%IGI | 3.96ct | Heart | D | VVS1 | Ideal
From $5,121
Compare at $19,860
Save 83.4%IGI | 3.96ct | Heart | E | VS1 | Ideal
From $830
Compare at $4,990
Save 78.5%IGI | 3.96ct | Heart | E | VVS2 | Ideal
From $1,408
Compare at $6,560
Save 79.9%IGI | 3.97ct | Heart | D | VS1 | Ideal
From $1,186
Compare at $5,900
Save 81.4%IGI | 3.98ct | Heart | E | VVS2 | Ideal
From $1,163
Compare at $6,250
Save 78.2%IGI | 3.98ct | Heart | F | VS1 | Ideal
From $1,122
Compare at $5,140
Save 76.9%IGI | 3.98ct | Heart | F | VS1 | Ideal
From $1,122
Compare at $4,850
Save 81%IGI | 3.98ct | Heart | D | VS1 | Ideal
From $1,189
Compare at $6,270
Save 80.3%IGI | 3.98ct | Heart | E | VVS2 | Ideal
From $1,163
Compare at $5,900
Save 74.5%IGI | 3.98ct | Heart | E | VS1 | Ideal
From $1,069
Compare at $4,190
Save 74.3%IGI | 3.98ct | Heart | E | VS1 | Ideal
From $1,163
Compare at $4,530
Save 73.8%IGI | 3.98ct | Heart | D | VS1 | Ideal
From $1,839
Compare at $7,030
Save 75.8%IGI | 3.98ct | Heart | E | VS1 | Excellent
From $1,452
Compare at $6,000
Save 81%IGI | 3.98ct | Heart | E | VVS2 | Ideal
From $1,254
Compare at $6,600
Save 75.5%IGI | 3.99ct | Heart | F | VS2 | Ideal
From $1,447
Compare at $5,910
Save 80.5%IGI | 3.99ct | Heart | F | VS1 | Ideal
From $1,059
Compare at $5,430
Save 85.3%IGI | 3.99ct | Heart | D | VS2 | Very Good
From $1,203
Compare at $8,180
Save 72.9%IGI | 3.99ct | Heart | D | VVS1 | Ideal
From $3,521
Compare at $12,980
IGI | 3.99ct | Heart | D | VS2 | Very Good
From $1,166
Compare at $8,120
Save 21.8%IGI | 3.99ct | Heart | D | VS1 | Excellent
From $1,468
Compare at $1,877
Entry pricing in this category starts around $730.
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 $18,561 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 $2,399 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 $730 and go up to $19,291.
Based on the latest market data, the average asking price is about $3,240 with a median around $2,399.
The observed spread is roughly $18,561 across tracked listings, which is about 96.2% 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 $2,399, 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 $18,561 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.