3.1 Carat Heart Lab Grown Diamond Prices Comparison
As of February 2026, 3.1 carat heart lab grown diamonds usually range from $623 to $25,517, with an average price of $1,032.In the last month, prices for these diamonds are down 1.8%.Compare 2,542 verified listings across 9 retailers tracked by CaratRadar.
3.1 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 2,542 verified 3.1-carat heart lab grown diamonds listed across 9 online retailers. Prices in this segment range from $623 to $25,517, with an average asking price of $1,032 and a median of $907.
The price spread of $24,894 (97.6% 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.
2,542 diamonds tracked in this segment
Price range: $623 to $25,517
Average price: $1,032
Median price: $907
Available across 9 retailers
Savings potential: up to 97.6%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
2,542
$623
$1,032
$907
$25,517
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 60.5%3.05ct | Heart | F | VS1 | Very Good
From $3,509
Compare at $8,874
GIASave 61%3.05ct | Heart | E | VS1 | Excellent
From $1,325
Compare at $3,399
GIASave 64.9%3.05ct | Heart | D | VVS2 | Ideal
From $4,055
Compare at $11,540
GIASave 79.4%3.05ct | Heart | F | VS1 | Excellent
From $1,238
Compare at $6,000
GIASave 80.8%3.05ct | Heart | D | VVS2 | Ideal
From $1,676
Compare at $8,750
GIASave 63.1%3.05ct | Heart | D | VVS2 | Ideal
From $4,055
Compare at $10,980
GIASave 77.6%3.05ct | Heart | F | VS1 | Excellent
From $2,101
Compare at $9,390
IGISave 88.4%3.05ct | Heart | G | VS2 | Ideal
From $1,336
Compare at $11,549
IGISave 83.4%3.05ct | Heart | E | VS2 | Ideal
From $902
Compare at $5,440
IGISave 64.1%3.05ct | Heart | D | VVS2 | Very Good
From $1,325
Compare at $3,690
IGISave 81.8%3.05ct | Heart | D | VS2 | Ideal
From $976
Compare at $5,370
IGISave 82.8%3.05ct | Heart | E | VVS2 | Ideal
From $784
Compare at $4,560
IGISave 73.8%3.05ct | Heart | D | IF | Ideal
From $6,791
Compare at $25,970
IGISave 70.6%3.05ct | Heart | D | VS1 | Ideal
From $915
Compare at $3,110
IGISave 90.8%3.05ct | Heart | D | VVS2 | Ideal
From $774
Compare at $8,450
IGISave 65.5%3.05ct | Heart | E | VS1 | Ideal
From $904
Compare at $2,620
IGISave 62.4%3.05ct | Heart | E | VS2 | Ideal
From $928
Compare at $2,470
IGISave 65.5%3.05ct | Heart | E | VS1 | Ideal
From $904
Compare at $2,620
IGISave 64.7%3.05ct | Heart | E | VS1 | Ideal
From $926
Compare at $2,620
IGISave 62.8%3.05ct | Heart | FANCY | VVS1 | Good
From $5,194
Compare at $13,977
IGISave 86.8%3.05ct | Heart | F | SI1 | Ideal
From $648
Compare at $4,920
IGISave 85.2%3.05ct | Heart | E | VVS2 | Ideal
From $790
Compare at $5,330
IGISave 62.4%3.05ct | Heart | E | VS2 | Ideal
From $928
Compare at $2,470
IGISave 65.9%3.05ct | Heart | E | VS1 | Ideal
From $893
Compare at $2,620
IGISave 62.4%3.05ct | Heart | E | VS2 | Ideal
From $928
Compare at $2,470
IGISave 64.7%3.05ct | Heart | E | VS1 | Ideal
From $926
Compare at $2,620
IGISave 65.5%3.05ct | Heart | E | VS1 | Ideal
From $904
Compare at $2,620
IGISave 65.9%3.05ct | Heart | E | VS1 | Ideal
From $893
Compare at $2,620
IGISave 87%3.05ct | Heart | D | VS1 | Ideal
From $765
Compare at $5,890
IGISave 65.5%3.05ct | Heart | E | VS1 | Ideal
From $904
Compare at $2,620
IGISave 70.9%3.05ct | Heart | D | VS1 | Ideal
From $904
Compare at $3,110
IGISave 71.1%3.05ct | Heart | E | VVS2 | Ideal
From $968
Compare at $3,355
IGISave 62.4%3.05ct | Heart | E | VS2 | Ideal
From $928
Compare at $2,470
IGISave 64.7%3.05ct | Heart | E | VS1 | Ideal
From $926
Compare at $2,620
IGISave 65.5%3.05ct | Heart | E | VS1 | Ideal
From $904
Compare at $2,620
IGISave 71.1%3.05ct | Heart | E | VVS2 | Ideal
From $968
Compare at $3,355
IGISave 65.9%3.05ct | Heart | E | VS1 | Ideal
From $893
Compare at $2,620
IGISave 89.1%3.05ct | Heart | E | VVS2 | Ideal
From $796
Compare at $7,300
IGISave 65.5%3.05ct | Heart | E | VS1 | Ideal
From $904
Compare at $2,620
IGISave 65.9%3.05ct | Heart | E | VS1 | Ideal
From $894
Compare at $2,620
IGISave 62.4%3.05ct | Heart | E | VS2 | Ideal
From $928
Compare at $2,470
IGISave 70.9%3.05ct | Heart | D | VS1 | Ideal
From $904
Compare at $3,110
IGISave 76.3%3.05ct | Heart | E | VVS2 | Ideal
From $796
Compare at $3,355
IGISave 65.1%3.05ct | Heart | E | VS1 | Ideal
From $915
Compare at $2,620
IGISave 48.8%3.05ct | Heart | F | VVS2 | Ideal
From $1,043
Compare at $2,038
IGISave 70.8%3.05ct | Heart | E | VVS2 | Ideal
From $979
Compare at $3,355
IGISave 65.1%3.05ct | Heart | E | VS1 | Ideal
From $915
Compare at $2,620
IGISave 70.8%3.05ct | Heart | E | VVS2 | Ideal
From $979
Compare at $3,355
IGISave 70.8%3.05ct | Heart | E | VVS2 | Ideal
From $979
Compare at $3,355
IGISave 70.8%3.05ct | Heart | E | VVS2 | Ideal
From $979
Compare at $3,355
Entry pricing in this category starts around $623.
What to Know When Shopping for 3.1 Carat Heart Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $24,894 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 $907 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 2,542 comparable stones in this segment. Prices start around $623 and go up to $25,517.
Based on the latest market data, the average asking price is about $1,032 with a median around $907.
The observed spread is roughly $24,894 across tracked listings, which is about 97.6% 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 $907, 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 9 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 $24,894 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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