3 Carat Princess Lab Grown Diamond Prices Comparison
As of October 2026, 3 carat princess lab grown diamonds in the 3.00–3.49 carat benchmark range usually range from $379 to $44,901, with an average price of $2,344.In the last month, prices for these diamonds are down 2.6%.Compare 4,580 verified listings across 16 retailers tracked by CaratRadar.
3 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 4,580 verified 3-carat princess lab grown diamonds in the 3.00–3.49 carat benchmark range, listed across 16 online retailers. Prices in this segment range from $379 to $44,901, with an average asking price of $2,344 and a median of $1,615.
The price spread of $44,522 (99.2% 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 use the same benchmark range throughout the page and 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.
4,580 diamonds tracked in the 3.00–3.49 carat benchmark
Price range: $379 to $44,901
Average price: $2,344
Median price: $1,615
Available across 16 retailers
Savings potential: up to 99.2%
Price Range Overview
As of Oct 14, 2026Real market range for this carat, shape, and diamond type.
4,580
$379
$2,344
$1,615
$44,901
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 74%IGI | 3.11ct | Princess | K | VS1 | Ideal
From $401
Compare at $1,540
Save 73.6%IGI | 3.02ct | Princess | H | VVS2 | Ideal
From $438
Compare at $1,656
Save 73.5%IGI | 3.19ct | Princess | H | VS1 | Very Good
From $454
Compare at $1,714
Save 78.8%IGI | 3.02ct | Princess | I | VS1 | Ideal
From $459
Compare at $2,160
Save 79.3%IGI | 3.03ct | Princess | H | VS1 | Excellent
From $466
Compare at $2,250
Save 75.8%IGI | 3.03ct | Princess | I | VS1 | Excellent
From $477
Compare at $1,970
Save 73.3%IGI | 3ct | Princess | G | VS1 | Very Good
From $478
Compare at $1,791
Save 73.3%IGI | 3.01ct | Princess | G | VS2 | Ideal
From $480
Compare at $1,797
Save 76.7%IGI | 3ct | Princess | G | VS2 | Ideal
From $484
Compare at $2,079
Save 76.7%IGI | 3ct | Princess | H | VVS2 | Ideal
From $484
Compare at $2,079
Save 73.3%IGI | 3.05ct | Princess | G | VVS2 | Ideal
From $486
Compare at $1,819
Save 69.9%IGI | 3.05ct | Princess | G | VVS2 | Ideal
From $486
Compare at $1,615
Save 73.3%IGI | 3.02ct | Princess | G | VVS2 | Ideal
From $487
Compare at $1,824
Save 72.8%IGI | 3.02ct | Princess | G | VVS2 | Ideal
From $487
Compare at $1,793
Save 73.3%IGI | 3.03ct | Princess | G | VVS2 | Ideal
From $488
Compare at $1,828
Save 73.3%IGI | 3.07ct | Princess | G | VVS2 | Excellent
From $489
Compare at $1,829
Save 73.3%IGI | 3ct | Princess | E | VS2 | Good
From $490
Compare at $1,833
Save 73.3%IGI | 3.09ct | Princess | G | VVS2 | Ideal
From $492
Compare at $1,841
Save 71.4%IGI | 3.02ct | Princess | G | VS2 | Ideal
From $493
Compare at $1,726
Save 73.3%IGI | 3.02ct | Princess | G | VS1 | Excellent
From $493
Compare at $1,844
Save 73.3%IGI | 3.07ct | Princess | G | VS1 | Excellent
From $494
Compare at $1,851
Save 73%IGI | 3ct | Princess | G | VVS2 | Very Good
From $495
Compare at $1,833
Save 73.3%IGI | 3.08ct | Princess | G | VS1 | Excellent
From $496
Compare at $1,857
Save 73.3%IGI | 3.07ct | Princess | G | VVS2 | Ideal
From $500
Compare at $1,872
Save 73.3%IGI | 3.01ct | Princess | F | VS1 | Ideal
From $502
Compare at $1,880
Save 79%IGI | 3.12ct | Princess | H | VS1 | Ideal
From $504
Compare at $2,400
Save 76.9%IGI | 3.19ct | Princess | H | VS2 | Ideal
From $508
Compare at $2,200
Save 78.6%IGI | 3.01ct | Princess | G | VS1 | Very Good
From $508
Compare at $2,376
Save 79.3%IGI | 3ct | Princess | H | VVS2 | Ideal
From $510
Compare at $2,460
Save 73.3%IGI | 3.06ct | Princess | F | VS1 | Good
From $510
Compare at $1,909
Save 72.9%IGI | 3.07ct | Princess | F | VVS2 | Ideal
From $511
Compare at $1,885
Save 78.6%IGI | 3.09ct | Princess | F | VVS2 | Ideal
From $512
Compare at $2,396
Save 72.9%IGI | 3.08ct | Princess | F | VVS2 | Ideal
From $512
Compare at $1,892
Save 79.6%IGI | 3.04ct | Princess | G | VS2 | Excellent
From $513
Compare at $2,510
Save 79.2%IGI | 3.01ct | Princess | H | VVS2 | Excellent
From $514
Compare at $2,470
Save 79.5%IGI | 3.05ct | Princess | G | VS2 | Excellent
From $514
Compare at $2,510
Save 73.3%IGI | 3.01ct | Princess | F | SI1 | Ideal
From $514
Compare at $1,922
Save 78.5%IGI | 3.21ct | Princess | H | VS1 | Excellent
From $515
Compare at $2,390
Save 73.3%IGI | 3.02ct | Princess | G | VVS2 | Ideal
From $515
Compare at $1,929
Save 73.3%IGI | 3.06ct | Princess | G | VS1 | Excellent
From $516
Compare at $1,931
Save 78.5%IGI | 3.22ct | Princess | H | VS1 | Very Good
From $517
Compare at $2,400
Save 73.3%IGI | 3.07ct | Princess | G | VS1 | Excellent
From $517
Compare at $1,937
Save 79.3%IGI | 3.05ct | Princess | H | VVS2 | Ideal
From $518
Compare at $2,500
Save 73.3%IGI | 3.04ct | Princess | F | VS1 | Very Good
From $518
Compare at $1,941
Save 76.9%IGI | 3.02ct | Princess | H | VS1 | Ideal
From $520
Compare at $2,250
Save 73.3%IGI | 3.09ct | Princess | G | VS1 | Excellent
From $521
Compare at $1,949
Save 73.3%IGI | 3.09ct | Princess | G | VS1 | Excellent
From $521
Compare at $1,949
Save 71.1%IGI | 3.03ct | Princess | G | VVS2 | Ideal
From $521
Compare at $1,801
Save 73.3%IGI | 3.11ct | Princess | G | VS1 | Very Good
From $524
Compare at $1,960
Save 73.3%IGI | 3.04ct | Princess | F | VVS2 | Very Good
From $524
Compare at $1,962
Entry pricing in this benchmark range starts around $379.
What to Know When Shopping for 3 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $44,522 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 $1,615 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 4,580 comparable stones in the 3.00–3.49 carat benchmark range. Prices start around $379 and go up to $44,901.
Based on the latest market data, the average asking price is about $2,344 with a median around $1,615.
The observed spread is roughly $44,522 across tracked listings, which is about 99.2% from highest to lowest offer in the 3.00–3.49 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $2,344. The median price is $1,615, 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 16 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 $44,522 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.
Related Price Categories
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Tracking Lab Grown inventory for the 3.00–3.49 carat Princess diamond benchmark.