4.5 Carat Princess Lab Grown Diamond Prices Comparison
As of October 2026, 4.5 carat princess lab grown diamonds in the 4.50–4.99 carat benchmark range usually range from $573 to $28,429, with an average price of $3,140.In the last month, prices for these diamonds are down 1%.Compare 324 verified listings across 16 retailers tracked by CaratRadar.
4.5 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 324 verified 4.5-carat princess lab grown diamonds in the 4.50–4.99 carat benchmark range, listed across 16 online retailers. Prices in this segment range from $573 to $28,429, with an average asking price of $3,140 and a median of $2,102.
The price spread of $27,857 (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 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.
324 diamonds tracked in the 4.50–4.99 carat benchmark
Price range: $573 to $28,429
Average price: $3,140
Median price: $2,102
Available across 16 retailers
Savings potential: up to 98.0%
Price Range Overview
As of Oct 15, 2026Real market range for this carat, shape, and diamond type.
324
$573
$3,140
$2,102
$28,429
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 68.9%IGI | 4.53ct | Princess | F | VVS2 | Very Good
From $676
Compare at $2,176
Save 78.4%IGI | 4.52ct | Princess | H | VS1 | Ideal
From $701
Compare at $3,240
Save 78.6%IGI | 4.75ct | Princess | E | VVS2 | Very Good
From $718
Compare at $3,350
Save 78.6%IGI | 4.53ct | Princess | E | VS1 | Excellent
From $723
Compare at $3,375
Save 67.5%IGI | 4.69ct | Princess | G | VS1 | Ideal
From $725
Compare at $2,232
Save 78.8%IGI | 4.56ct | Princess | E | VVS2 | Ideal
From $727
Compare at $3,437
Save 78.2%IGI | 4.73ct | Princess | H | VS1 | Ideal
From $734
Compare at $3,360
Save 78.2%IGI | 4.78ct | Princess | H | VS1 | Ideal
From $740
Compare at $3,390
Save 68.7%IGI | 4.72ct | Princess | J | VVS2 | Ideal
From $743
Compare at $2,374
Save 72.1%IGI | 4.51ct | Princess | E | VVS2 | Good
From $743
Compare at $2,667
Save 78.1%IGI | 4.58ct | Princess | F | VS1 | Very Good
From $746
Compare at $3,413
Save 70.9%IGI | 4.59ct | Princess | F | VS1 | Ideal
From $747
Compare at $2,565
Save 78.1%IGI | 4.56ct | Princess | F | VVS2 | Ideal
From $751
Compare at $3,437
Save 70.9%IGI | 4.57ct | Princess | F | VVS2 | Ideal
From $753
Compare at $2,584
Save 72.1%IGI | 4.57ct | Princess | E | VVS2 | Good
From $753
Compare at $2,702
Save 78.1%IGI | 4.58ct | Princess | F | VVS2 | Ideal
From $755
Compare at $3,452
Save 78.1%IGI | 4.58ct | Princess | F | VVS2 | Very Good
From $755
Compare at $3,452
Save 72.6%IGI | 4.73ct | Princess | G | VS1 | Ideal
From $760
Compare at $2,775
Save 68.7%IGI | 4.85ct | Princess | J | VVS2 | Ideal
From $762
Compare at $2,436
Save 70.7%IGI | 4.57ct | Princess | F | VVS2 | Ideal
From $766
Compare at $2,613
Save 61.6%IGI | 4.57ct | Princess | G | VVS2 | Very Good
From $772
Compare at $2,008
Save 76.7%IGI | 4.59ct | Princess | H | VS1 | Excellent
From $780
Compare at $3,350
Save 55.4%IGI | 4.52ct | Princess | F | VS1 | Very Good
From $785
Compare at $1,760
Save 70.7%IGI | 4.55ct | Princess | F | VVS2 | Ideal
From $789
Compare at $2,692
Save 75.8%IGI | 4.59ct | Princess | H | VS1 | Ideal
From $795
Compare at $3,280
Save 58.5%IGI | 4.55ct | Princess | E | VS1 | Very Good
From $808
Compare at $1,945
Save 69.9%IGI | 4.81ct | Princess | F | VS1 | Good
From $810
Compare at $2,690
Save 70.7%IGI | 4.55ct | Princess | E | VS1 | Very Good
From $813
Compare at $2,774
Save 50.1%IGI | 4.5ct | Princess | H | VVS2 | Excellent
From $815
Compare at $1,633
Save 73.4%IGI | 4.59ct | Princess | E | VVS2 | Ideal
From $826
Compare at $3,102
Save 69.2%IGI | 4.83ct | Princess | F | VS1 | Good
From $831
Compare at $2,700
Save 70.4%IGI | 4.5ct | Princess | E | VVS2 | Very Good
From $844
Compare at $2,853
Save 64.6%IGI | 4.53ct | Princess | J | VS2 | Ideal
From $849
Compare at $2,395
Save 79.7%IGI | 4.71ct | Princess | G | VS1 | Ideal
From $851
Compare at $4,190
Save 56.8%IGI | 4.5ct | Princess | E | VVS2 | Very Good
From $858
Compare at $1,986
Save 55.1%IGI | 4.5ct | Princess | E | VS1 | Excellent
From $864
Compare at $1,926
Save 21.2%IGI | 4.58ct | Princess | H | VS1 | Good
From $876
Compare at $1,111
Save 41.5%IGI | 4.6ct | Princess | F | VVS2 | Very Good
From $887
Compare at $1,517
Save 51%IGI | 4.56ct | Princess | E | VVS2 | Ideal
From $890
Compare at $1,816
Save 35.7%IGI | 4.53ct | Princess | G | VS1 | Very Good
From $891
Compare at $1,387
Save 63.9%IGI | 4.53ct | Princess | E | VVS2 | Very Good
From $892
Compare at $2,470
Save 56.1%IGI | 4.55ct | Princess | E | VVS2 | Ideal
From $893
Compare at $2,034
Save 70.4%IGI | 4.52ct | Princess | G | VVS2 | Very Good
From $903
Compare at $3,053
Save 74.2%IGI | 4.52ct | Princess | E | VVS2 | Excellent
From $918
Compare at $3,564
Save 74.2%IGI | 4.52ct | Princess | E | VVS2 | Very Good
From $918
Compare at $3,564
Save 65.7%IGI | 4.53ct | Princess | E | VVS2 | Ideal
From $920
Compare at $2,679
Save 65.7%IGI | 4.53ct | Princess | E | VVS2 | Ideal
From $920
Compare at $2,679
Save 74.3%IGI | 4.54ct | Princess | E | VVS2 | Very Good
From $921
Compare at $3,579
Save 65.7%IGI | 4.55ct | Princess | E | VVS2 | Ideal
From $923
Compare at $2,690
Save 74.2%IGI | 4.56ct | Princess | E | VVS2 | Excellent
From $926
Compare at $3,595
Entry pricing in this benchmark range starts around $573.
What to Know When Shopping for 4.5 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $27,857 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 $2,102 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 324 comparable stones in the 4.50–4.99 carat benchmark range. Prices start around $573 and go up to $28,429.
Based on the latest market data, the average asking price is about $3,140 with a median around $2,102.
The observed spread is roughly $27,857 across tracked listings, which is about 98.0% from highest to lowest offer in the 4.50–4.99 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 $3,140. The median price is $2,102, 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 $27,857 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 the 4.50–4.99 carat Princess diamond benchmark.