4.5 Carat Princess Lab Grown Diamond Prices Comparison
As of May 2026, 4.5 carat princess lab grown diamonds usually range from $573 to $20,669, with an average price of $3,678.In the last month, prices for these diamonds are down 6.9%.Compare 88 verified listings across 8 retailers tracked by CaratRadar.
4.5 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 88 verified 4.5-carat princess lab grown diamonds listed across 8 online retailers. Prices in this segment range from $573 to $20,669, with an average asking price of $3,678 and a median of $2,601.
The price spread of $20,096 (97.2% 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 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.
88 diamonds tracked in this segment
Price range: $573 to $20,669
Average price: $3,678
Median price: $2,601
Available across 8 retailers
Savings potential: up to 97.2%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
88
$573
$3,678
$2,601
$20,669
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 70.5%IGI | 4.5ct | Princess | I | VS1 | Ideal
From $803
Compare at $2,722
Save 70%IGI | 4.52ct | Princess | H | VS1 | Ideal
From $807
Compare at $2,692
Save 70%IGI | 4.55ct | Princess | H | VS2 | Ideal
From $813
Compare at $2,710
Save 70%IGI | 4.56ct | Princess | H | VS2 | Ideal
From $814
Compare at $2,716
Save 70%IGI | 4.59ct | Princess | H | VS1 | Excellent
From $819
Compare at $2,734
Save 70%IGI | 4.59ct | Princess | H | VS1 | Ideal
From $819
Compare at $2,734
Save 60.9%IGI | 4.5ct | Princess | G | VS1 | Very Good
From $835
Compare at $2,133
Save 65.7%IGI | 4.57ct | Princess | F | VS1 | Very Good
From $836
Compare at $2,438
Save 65.1%IGI | 4.56ct | Princess | F | VVS2 | Ideal
From $845
Compare at $2,420
Save 65.1%IGI | 4.57ct | Princess | F | VVS2 | Ideal
From $847
Compare at $2,430
Save 64.7%IGI | 4.53ct | Princess | F | VS1 | Very Good
From $848
Compare at $2,400
Save 70.1%IGI | 4.51ct | Princess | G | VVS2 | Ideal
From $858
Compare at $2,865
Save 66.5%IGI | 4.5ct | Princess | E | VVS2 | Very Good
From $858
Compare at $2,559
Save 50.3%IGI | 4.52ct | Princess | F | VVS2 | Ideal
From $865
Compare at $1,741
Save 64.2%IGI | 4.57ct | Princess | F | VVS2 | Ideal
From $873
Compare at $2,438
Save 65.8%IGI | 4.5ct | Princess | E | VS1 | Ideal
From $874
Compare at $2,558
Save 66.3%IGI | 4.55ct | Princess | E | VS1 | Very Good
From $874
Compare at $2,591
Save 65.7%IGI | 4.52ct | Princess | E | VS1 | Very Good
From $879
Compare at $2,563
Save 49.7%IGI | 4.56ct | Princess | F | VVS2 | Very Good
From $883
Compare at $1,756
Save 80%IGI | 4.52ct | Princess | G | VS1 | Ideal
From $904
Compare at $4,520
Save 70.4%IGI | 4.59ct | Princess | F | VS1 | Ideal
From $907
Compare at $3,059
Save 57.8%IGI | 4.51ct | Princess | G | VS1 | Very Good
From $915
Compare at $2,169
Save 79.5%IGI | 4.55ct | Princess | G | VS1 | Ideal
From $945
Compare at $4,599
Save 68.5%IGI | 4.57ct | Princess | F | VS1 | Ideal
From $960
Compare at $3,047
Save 55.4%IGI | 4.55ct | Princess | H | VS1 | Ideal
From $993
Compare at $2,226
Save 79.9%IGI | 4.59ct | Princess | I | VVS2 | Good
From $998
Compare at $4,960
Save 71.1%IGI | 4.58ct | Princess | E | VVS2 | Very Good
From $999
Compare at $3,456
Save 61.8%IGI | 4.56ct | Princess | E | VS1 | Very Good
From $1,013
Compare at $2,653
Save 61.4%IGI | 4.55ct | Princess | E | VS1 | Very Good
From $1,021
Compare at $2,644
Save 72.5%IGI | 4.53ct | Princess | E | VS1 | Ideal
From $1,068
Compare at $3,886
Save 59%IGI | 4.5ct | Princess | E | VVS2 | Very Good
From $1,073
Compare at $2,615
Save 63.4%IGI | 4.51ct | Princess | E | VVS2 | Excellent
From $1,083
Compare at $2,955
Save 59.7%IGI | 4.52ct | Princess | G | VVS2 | Very Good
From $1,085
Compare at $2,695
Save 63.4%IGI | 4.56ct | Princess | E | VVS2 | Ideal
From $1,095
Compare at $2,988
Save 59.2%IGI | 4.58ct | Princess | E | VVS2 | Excellent
From $1,096
Compare at $2,687
Save 42.1%IGI | 4.57ct | Princess | F | VS1 | Ideal
From $1,133
Compare at $1,958
Save 52.7%IGI | 4.57ct | Princess | F | VS1 | Very Good
From $1,163
Compare at $2,461
Save 56.2%IGI | 4.56ct | Princess | E | VS1 | Very Good
From $1,182
Compare at $2,700
Save 55.8%IGI | 4.54ct | Princess | E | VVS2 | Very Good
From $1,185
Compare at $2,684
Save 55.1%IGI | 4.55ct | Princess | G | VVS2 | Very Good
From $1,195
Compare at $2,661
Save 75.3%IGI | 4.53ct | Princess | G | VS2 | Very Good
From $1,199
Compare at $4,857
Save 55.1%IGI | 4.5ct | Princess | F | VS2 | Very Good
From $1,254
Compare at $2,789
Save 47.4%IGI | 4.54ct | Princess | F | VVS2 | Very Good
From $1,265
Compare at $2,402
Save 36.4%IGI | 4.56ct | Princess | F | VVS2 | Ideal
From $1,271
Compare at $1,997
Save 37.6%IGI | 4.59ct | Princess | E | VVS2 | Ideal
From $1,348
Compare at $2,159
Save 37.6%IGI | 4.59ct | Princess | E | VVS2 | Ideal
From $1,348
Compare at $2,159
Save 79.4%IGI | 4.52ct | Princess | D | VS1 | Ideal
From $1,349
Compare at $6,550
Save 63.1%IGI | 4.5ct | Princess | D | VS1 | Very Good
From $1,349
Compare at $3,657
Save 77.9%IGI | 4.53ct | Princess | F | VVS1 | Ideal
From $1,358
Compare at $6,138
Save 15.8%IGI | 4.53ct | Princess | G | VS1 | Very Good
From $1,442
Compare at $1,713
Entry pricing in this category 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 $20,096 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 $2,601 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 88 comparable stones in this segment. Prices start around $573 and go up to $20,669.
Based on the latest market data, the average asking price is about $3,678 with a median around $2,601.
The observed spread is roughly $20,096 across tracked listings, which is about 97.2% 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 $3,678. The median price is $2,601, 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 $20,096 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 4.5 carat Princess diamonds.