3.1 Carat Princess Lab Grown Diamond Prices Comparison
As of May 2026, 3.1 carat princess lab grown diamonds usually range from $493 to $24,680, with an average price of $2,898.In the last month, prices for these diamonds are down 5.4%.Compare 173 verified listings across 8 retailers tracked by CaratRadar.
3.1 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 173 verified 3.1-carat princess lab grown diamonds listed across 8 online retailers. Prices in this segment range from $493 to $24,680, with an average asking price of $2,898 and a median of $2,022.
The price spread of $24,187 (98.0% 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.
173 diamonds tracked in this segment
Price range: $493 to $24,680
Average price: $2,898
Median price: $2,022
Available across 8 retailers
Savings potential: up to 98.0%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
173
$493
$2,898
$2,022
$24,680
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 70%IGI | 3.12ct | Princess | H | VS1 | Ideal
From $557
Compare at $1,858
Save 70%IGI | 3.19ct | Princess | H | VS2 | Ideal
From $570
Compare at $1,900
Save 58.1%IGI | 3.19ct | Princess | G | VS1 | Excellent
From $602
Compare at $1,437
Save 46.5%IGI | 3.11ct | Princess | K | VS1 | Ideal
From $615
Compare at $1,150
Save 61%IGI | 3.15ct | Princess | F | VS1 | Very Good
From $624
Compare at $1,602
Save 59.6%IGI | 3.12ct | Princess | F | VS1 | Excellent
From $636
Compare at $1,575
Save 52.1%IGI | 3.17ct | Princess | E | VS1 | Excellent
From $637
Compare at $1,331
Save 51.6%IGI | 3.19ct | Princess | H | VS1 | Very Good
From $668
Compare at $1,380
Save 60.1%IGI | 3.14ct | Princess | D | VS2 | Ideal
From $672
Compare at $1,684
Save 69.7%IGI | 3.18ct | Princess | E | VVS2 | Excellent
From $675
Compare at $2,226
IGI | 3.16ct | Princess | H | VS1 | Ideal
From $682
Compare at $2,940
Save 60.4%IGI | 3.11ct | Princess | E | VVS2 | Very Good
From $687
Compare at $1,734
Save 62.2%IGI | 3.19ct | Princess | E | VVS2 | Very Good
From $690
Compare at $1,825
Save 52%IGI | 3.13ct | Princess | G | VS1 | Ideal
From $692
Compare at $1,443
Save 52.8%IGI | 3.19ct | Princess | G | VS2 | Ideal
From $704
Compare at $1,491
Save 51.5%IGI | 3.14ct | Princess | G | VVS2 | Very Good
From $725
Compare at $1,495
Save 64.7%IGI | 3.16ct | Princess | D | VVS2 | Very Good
From $732
Compare at $2,074
Save 72.5%IGI | 3.12ct | Princess | D | VVS2 | Excellent
From $732
Compare at $2,659
Save 54.8%IGI | 3.16ct | Princess | F | VVS2 | Good
From $752
Compare at $1,663
Save 49.5%IGI | 3.15ct | Princess | G | VVS2 | Ideal
From $753
Compare at $1,492
Save 55.8%IGI | 3.18ct | Princess | E | VS1 | Excellent
From $753
Compare at $1,703
Save 63.7%IGI | 3.19ct | Princess | D | VVS2 | Very Good
From $754
Compare at $2,077
Save 76.5%IGI | 3.18ct | Princess | D | VS1 | Ideal
From $760
Compare at $3,240
Save 47.3%IGI | 3.16ct | Princess | G | VS1 | Very Good
From $764
Compare at $1,449
Save 53.2%IGI | 3.17ct | Princess | D | VVS2 | Ideal
From $764
Compare at $1,634
Save 46.1%IGI | 3.15ct | Princess | G | VS1 | Very Good
From $778
Compare at $1,444
Save 46.4%IGI | 3.17ct | Princess | G | VS1 | Very Good
From $783
Compare at $1,461
Save 46.8%IGI | 3.19ct | Princess | G | VS1 | Very Good
From $787
Compare at $1,478
Save 46.8%IGI | 3.19ct | Princess | G | VS1 | Very Good
From $787
Compare at $1,478
Save 61.9%IGI | 3.18ct | Princess | D | VVS2 | Very Good
From $790
Compare at $2,075
Save 55.4%IGI | 3.14ct | Princess | E | VVS2 | Very Good
From $795
Compare at $1,781
Save 79.7%IGI | 3.2ct | Princess | E | VVS2 | Ideal
From $804
Compare at $3,960
Save 78%IGI | 3.14ct | Princess | G | VVS2 | Ideal
From $804
Compare at $3,650
Save 14.2%IGI | 3.2ct | Princess | F | VS1 | Good
From $808
Compare at $942
Save 52.5%IGI | 3.15ct | Princess | E | VS1 | Ideal
From $813
Compare at $1,710
Save 63.9%IGI | 3.17ct | Princess | FANCY | SI1 | Excellent
From $814
Compare at $2,257
Save 53.6%IGI | 3.11ct | Princess | E | VVS2 | Very Good
From $814
Compare at $1,756
Save 79.3%IGI | 3.11ct | Princess | H | VS2 | Very Good
From $819
Compare at $3,960
Save 70.5%IGI | 3.13ct | Princess | G | VS1 | Very Good
From $821
Compare at $2,787
Save 79.9%IGI | 3.12ct | Princess | G | VS1 | Very Good
From $830
Compare at $4,130
Save 79.9%IGI | 3.13ct | Princess | G | VS1 | Very Good
From $833
Compare at $4,140
Save 50.4%IGI | 3.14ct | Princess | F | VVS2 | Ideal
From $833
Compare at $1,679
Save 72.4%IGI | 3.14ct | Princess | FANCY | VS1 | Very Good
From $841
Compare at $3,047
Save 41.9%IGI | 3.11ct | Princess | H | VS2 | Ideal
From $847
Compare at $1,458
Save 79.9%IGI | 3.2ct | Princess | G | VVS2 | Very Good
From $850
Compare at $4,220
Save 61.2%IGI | 3.15ct | Princess | H | SI1 | Ideal
From $851
Compare at $2,194
Save 43.7%IGI | 3.11ct | Princess | F | VS1 | Very Good
From $860
Compare at $1,528
Save 43.5%IGI | 3.18ct | Princess | G | VVS2 | Very Good
From $869
Compare at $1,539
Save 36.2%IGI | 3.11ct | Princess | G | VS1 | Very Good
From $876
Compare at $1,374
Save 72.4%IGI | 3.17ct | Princess | FANCY | VVS2 | Very Good
From $885
Compare at $3,204
Entry pricing in this category starts around $493.
What to Know When Shopping for 3.1 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $24,187 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 $2,022 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.
- Princess-cut diamonds are prone to chipping at the corners. Look for protective prong settings and avoid stones with visible inclusions near the edges.
Frequently Asked Questions
We currently track 173 comparable stones in this segment. Prices start around $493 and go up to $24,680.
Based on the latest market data, the average asking price is about $2,898 with a median around $2,022.
The observed spread is roughly $24,187 across tracked listings, which is about 98.0% 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 $2,898. The median price is $2,022, 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 8 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 $24,187 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 Princess diamonds.