4.5 Carat Princess Lab Grown Diamond Prices Comparison
As of February 2026, 4.5 carat princess lab grown diamonds usually range from $837 to $21,000, with an average price of $2,605.In the last month, prices for these diamonds are down 2.1%.Compare 158 verified listings across 6 retailers tracked by CaratRadar.
4.5 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 158 verified 4.5-carat princess lab grown diamonds listed across 6 online retailers. Prices in this segment range from $837 to $21,000, with an average asking price of $2,605 and a median of $1,336.
The price spread of $20,163 (96.0% 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.
158 diamonds tracked in this segment
Price range: $837 to $21,000
Average price: $2,605
Median price: $1,336
Available across 6 retailers
Savings potential: up to 96.0%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
158
$837
$2,605
$1,336
$21,000
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 75.2%4.46ct | Princess | E | VVS2 | Ideal
From $1,215
Compare at $4,905
IGISave 86%4.46ct | Princess | D | VS1 | Ideal
From $1,523
Compare at $10,870
GIA4.47ct | Princess | D | VS2 | Ideal
From $8,605
Compare at $9,180
IGISave 84.6%4.47ct | Princess | G | VS2 | Ideal
From $1,245
Compare at $8,070
4.47ct | Princess | F | VS2 | Ideal
From $1,084
Compare at $3,395
IGISave 87.2%4.47ct | Princess | E | VS1 | Excellent
From $1,342
Compare at $10,510
IGISave 87.2%4.47ct | Princess | E | VS1 | Excellent
From $1,342
Compare at $10,510
IGISave 49.7%4.47ct | Princess | G | VS1 | Good
From $2,347
Compare at $4,670
IGISave 87.2%4.48ct | Princess | E | VVS2 | Excellent
From $1,377
Compare at $10,720
IGISave 85%4.48ct | Princess | E | VS1 | Very Good
From $1,636
Compare at $10,890
IGISave 86.7%4.48ct | Princess | G | VVS2 | Excellent
From $1,132
Compare at $8,500
IGISave 87%4.48ct | Princess | F | VVS2 | Ideal
From $1,248
Compare at $9,610
IGISave 75.2%4.48ct | Princess | E | VVS2 | Ideal
From $1,221
Compare at $4,925
IGISave 67.2%4.49ct | Princess | D | VVS2 | Excellent
From $1,857
Compare at $5,655
IGISave 85.6%4.49ct | Princess | E | VVS2 | Ideal
From $1,547
Compare at $10,740
IGISave 75.2%4.49ct | Princess | E | VVS2 | Ideal
From $1,223
Compare at $4,935
IGISave 84.7%4.49ct | Princess | E | VS1 | Very Good
From $1,670
Compare at $10,910
IGISave 89.6%4.49ct | Princess | E | VS1 | Excellent
From $1,099
Compare at $10,610
IGISave 58.6%4.49ct | Princess | H | VS1 | Ideal
From $18,090
Compare at $43,728
IGISave 67.7%4.49ct | Princess | F | VS2 | Ideal
From $1,103
Compare at $3,410
IGISave 87.7%4.49ct | Princess | F | VS1 | Excellent
From $1,092
Compare at $8,880
IGISave 79.6%4.5ct | Princess | G | VS1 | Excellent
From $1,034
Compare at $5,060
IGISave 81.6%4.5ct | Princess | G | VS2 | Very Good
From $927
Compare at $5,030
IGISave 83.6%4.5ct | Princess | D | VS1 | Ideal
From $1,846
Compare at $11,220
IGISave 88.3%4.5ct | Princess | E | VVS2 | Very Good
From $1,270
Compare at $10,880
IGISave 82.5%4.5ct | Princess | D | VS1 | Excellent
From $1,766
Compare at $10,100
IGISave 63.1%4.5ct | Princess | G | VS1 | Very Good
From $1,032
Compare at $2,798
IGISave 80.4%4.5ct | Princess | F | VVS2 | Ideal
From $1,182
Compare at $6,030
IGISave 82.7%4.5ct | Princess | G | VS1 | Excellent
From $1,329
Compare at $7,700
IGISave 88.6%4.5ct | Princess | E | VS1 | Excellent
From $1,261
Compare at $11,030
IGISave 86.3%4.5ct | Princess | E | VS2 | Excellent
From $1,194
Compare at $8,720
IGISave 65.7%4.5ct | Princess | H | VVS2 | Excellent
From $1,222
Compare at $3,565
IGISave 88.1%4.5ct | Princess | E | VS1 | Ideal
From $1,000
Compare at $8,410
IGISave 83.6%4.5ct | Princess | E | VS2 | Ideal
From $1,419
Compare at $8,630
IGISave 49.2%4.5ct | Princess | D | VS1 | Very Good
From $1,969
Compare at $3,873
IGISave 75.2%4.5ct | Princess | E | VVS2 | Ideal
From $1,226
Compare at $4,950
IGISave 86.1%4.5ct | Princess | F | VS1 | Excellent
From $1,513
Compare at $10,910
IGISave 82.9%4.5ct | Princess | G | VVS2 | Excellent
From $1,298
Compare at $7,574
IGISave 86.5%4.5ct | Princess | F | VS1 | Excellent
From $1,234
Compare at $9,140
IGISave 80.7%4.5ct | Princess | E | VVS2 | Very Good
From $1,686
Compare at $8,750
IGISave 75.2%4.5ct | Princess | E | VVS2 | Ideal
From $1,226
Compare at $4,950
IGISave 81.5%4.5ct | Princess | F | VVS2 | Ideal
From $1,182
Compare at $6,390
IGISave 56%4.5ct | Princess | F | VS2 | Ideal
From $1,484
Compare at $3,371
IGISave 82.1%4.5ct | Princess | FANCY | VS1 | Very Good
From $1,611
Compare at $8,990
IGISave 90.2%4.5ct | Princess | E | VS1 | Ideal
From $1,080
Compare at $11,030
IGISave 66.9%4.5ct | Princess | E | VVS2 | Very Good
From $984
Compare at $2,973
IGISave 69.7%4.5ct | Princess | F | VS1 | Ideal
From $1,076
Compare at $3,555
GIASave 65%4.5ct | Princess | E | VVS2 | Excellent
From $5,683
Compare at $16,250
GIASave 81.4%4.5ct | Princess | G | VS1 | Ideal
From $2,251
Compare at $12,110
IGISave 62.1%4.5ct | Princess | FANCY | VS1 | Very Good
From $3,157
Compare at $8,338
Entry pricing in this category starts around $837.
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 $20,163 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 $1,336 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 158 comparable stones in this segment. Prices start around $837 and go up to $21,000.
Based on the latest market data, the average asking price is about $2,605 with a median around $1,336.
The observed spread is roughly $20,163 across tracked listings, which is about 96.0% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $1,336, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
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 $20,163 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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