3.1 Carat Heart Lab Grown Diamond Prices Comparison
As of May 2026, 3.1 carat heart lab grown diamonds usually range from $510 to $11,688, with an average price of $2,242.In the last month, prices for these diamonds are down 1%.Compare 83 verified listings across 6 retailers tracked by CaratRadar.
3.1 Carat Heart Lab Grown Diamond Market Overview
CaratRadar currently tracks 83 verified 3.1-carat heart lab grown diamonds listed across 6 online retailers. Prices in this segment range from $510 to $11,688, with an average asking price of $2,242 and a median of $1,612.
The price spread of $11,178 (95.6% 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.
83 diamonds tracked in this segment
Price range: $510 to $11,688
Average price: $2,242
Median price: $1,612
Available across 6 retailers
Savings potential: up to 95.6%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
83
$510
$2,242
$1,612
$11,688
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 67.7%IGI | 3.13ct | Heart | F | VS1 | Very Good
From $636
Compare at $1,972
Save 60.3%IGI | 3.11ct | Heart | E | VS1 | Very Good
From $637
Compare at $1,606
Save 54.4%IGI | 3.15ct | Heart | G | VS1 | Ideal
From $642
Compare at $1,407
Save 54.1%IGI | 3.14ct | Heart | I | VVS2 | Ideal
From $677
Compare at $1,475
Save 58.4%IGI | 3.17ct | Heart | E | VS1 | Ideal
From $689
Compare at $1,657
Save 57.8%IGI | 3.13ct | Heart | D | VS2 | Very Good
From $697
Compare at $1,653
Save 79.3%IGI | 3.16ct | Heart | F | VS2 | Ideal
From $702
Compare at $3,390
Save 79.9%IGI | 3.13ct | Heart | G | VS1 | Ideal
From $716
Compare at $3,560
Save 72.5%IGI | 3.11ct | Heart | D | VVS2 | Excellent
From $729
Compare at $2,651
Save 79.9%IGI | 3.19ct | Heart | G | VS1 | Ideal
From $747
Compare at $3,710
Save 63.8%IGI | 3.2ct | Heart | D | VVS2 | Ideal
From $755
Compare at $2,087
Save 49.9%IGI | 3.2ct | Heart | F | VS2 | Ideal
From $757
Compare at $1,512
Save 74.9%IGI | 3.12ct | Heart | D | VS1 | Very Good
From $767
Compare at $3,055
Save 36.8%IGI | 3.13ct | Heart | G | VVS2 | Ideal
From $770
Compare at $1,218
Save 79.9%IGI | 3.13ct | Heart | I | VVS2 | Ideal
From $772
Compare at $3,840
Save 53.6%IGI | 3.18ct | Heart | E | VS1 | Very Good
From $794
Compare at $1,713
Save 53.9%IGI | 3.2ct | Heart | E | VS1 | Very Good
From $799
Compare at $1,733
Save 50.3%IGI | 3.17ct | Heart | F | VS1 | Very Good
From $800
Compare at $1,609
Save 76.3%IGI | 3.2ct | Heart | G | VS1 | Ideal
From $800
Compare at $3,370
Save 32.7%IGI | 3.2ct | Heart | F | VS2 | Excellent
From $825
Compare at $1,226
Save 41.9%IGI | 3.2ct | Heart | G | VS2 | Very Good
From $830
Compare at $1,428
Save 78.3%IGI | 3.13ct | Heart | D | VS1 | Very Good
From $830
Compare at $3,818
Save 47.9%IGI | 3.17ct | Heart | F | VS1 | Ideal
From $837
Compare at $1,605
Save 79.9%IGI | 3.11ct | Heart | D | VS1 | Ideal
From $843
Compare at $4,190
Save 48.5%IGI | 3.16ct | Heart | F | VVS2 | Ideal
From $851
Compare at $1,654
Save 34.4%IGI | 3.16ct | Heart | G | VS1 | Ideal
From $866
Compare at $1,320
Save 51.3%IGI | 3.16ct | Heart | E | VVS2 | Very Good
From $868
Compare at $1,784
Save 19.7%IGI | 3.15ct | Heart | H | VVS2 | Ideal
From $876
Compare at $1,091
Save 76.6%IGI | 3.17ct | Heart | I | VS1 | Ideal
From $892
Compare at $3,820
Save 76.6%IGI | 3.12ct | Heart | F | VS1 | Very Good
From $895
Compare at $3,830
Save 54.9%IGI | 3.11ct | Heart | D | VVS2 | Excellent
From $915
Compare at $2,030
GIA | 3.2ct | Heart | H | VS1 | Ideal
From $941
Compare at $4,550
Save 69.5%IGI | 3.16ct | Heart | G | VS2 | Ideal
From $943
Compare at $3,090
Save 33%IGI | 3.13ct | Heart | E | VVS2 | Ideal
From $954
Compare at $1,424
Save 79.9%IGI | 3.11ct | Heart | G | VS1 | Very Good
From $957
Compare at $4,760
Save 74.6%IGI | 3.12ct | Heart | D | VVS2 | Very Good
From $958
Compare at $3,775
Save 47.7%IGI | 3.2ct | Heart | E | VVS2 | Ideal
From $965
Compare at $1,845
Save 74.7%IGI | 3.17ct | Heart | D | VVS2 | Very Good
From $969
Compare at $3,835
Save 43.3%IGI | 3.13ct | Heart | E | VVS2 | Very Good
From $990
Compare at $1,747
Save 39.4%IGI | 3.2ct | Heart | E | VS1 | Very Good
From $1,034
Compare at $1,705
IGI | 3.14ct | Heart | H | VS1 | Ideal
From $1,034
Compare at $1,098
Save 75.8%IGI | 3.15ct | Heart | G | VVS2 | Ideal
From $1,050
Compare at $4,330
IGI | 3.19ct | Heart | FANCY | SI1 | Good
From $1,054
Compare at $1,084
Save 35.5%IGI | 3.2ct | Heart | F | VS1 | Very Good
From $1,056
Compare at $1,637
IGI | 3.11ct | Heart | G | VS1 | Very Good
From $1,080
Compare at $1,083
Save 47.7%IGI | 3.14ct | Heart | E | VS1 | Ideal
From $1,096
Compare at $2,097
Save 47.8%IGI | 3.17ct | Heart | E | VS1 | Ideal
From $1,105
Compare at $2,116
GCAL | 3.13ct | Heart | G | VS1 | Good
From $1,124
Compare at $1,134
Save 68.5%GIA | 3.17ct | Heart | F | VS2 | Ideal
From $1,130
Compare at $3,590
Save 74.1%IGI | 3.14ct | Heart | H | VS1 | Ideal
From $1,152
Compare at $4,450
Entry pricing in this category starts around $510.
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 $11,178 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 $1,612 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 83 comparable stones in this segment. Prices start around $510 and go up to $11,688.
Based on the latest market data, the average asking price is about $2,242 with a median around $1,612.
The observed spread is roughly $11,178 across tracked listings, which is about 95.6% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $2,242. The median price is $1,612, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
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 $11,178 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 3.1 carat Heart diamonds.