5.1 Carat Princess Lab Grown Diamond Prices Comparison
As of February 2026, 5.1 carat princess lab grown diamonds usually range from $975 to $39,000, with an average price of $1,849.In the last month, prices for these diamonds are down 2%.Compare 1,181 verified listings across 12 retailers tracked by CaratRadar.
5.1 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,181 verified 5.1-carat princess lab grown diamonds listed across 12 online retailers. Prices in this segment range from $975 to $39,000, with an average asking price of $1,849 and a median of $1,562.
The price spread of $38,025 (97.5% 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.
1,181 diamonds tracked in this segment
Price range: $975 to $39,000
Average price: $1,849
Median price: $1,562
Available across 12 retailers
Savings potential: up to 97.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,181
$975
$1,849
$1,562
$39,000
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 43.4%5.05ct | Princess | E | VS1 | Very Good
From $2,011
Compare at $3,555
IGISave 73.6%5.05ct | Princess | F | VVS2 | Ideal
From $2,954
Compare at $11,170
IGISave 84.4%5.05ct | Princess | F | VVS2 | Ideal
From $1,739
Compare at $11,160
IGISave 70.2%5.05ct | Princess | H | VS2 | Very Good
From $1,960
Compare at $6,570
IGISave 85.2%5.05ct | Princess | F | VS1 | Ideal
From $1,866
Compare at $12,620
IGISave 83.3%5.05ct | Princess | E | VS2 | Ideal
From $1,103
Compare at $6,600
IGISave 76%5.05ct | Princess | E | VS1 | Ideal
From $1,905
Compare at $7,950
IGISave 53.8%5.05ct | Princess | E | VS1 | Very Good
From $1,642
Compare at $3,555
IGISave 69%5.05ct | Princess | F | VVS1 | Good
From $3,988
Compare at $12,880
IGISave 53.8%5.05ct | Princess | E | VS1 | Ideal
From $1,642
Compare at $3,555
IGISave 86.7%5.05ct | Princess | E | VS2 | Ideal
From $1,544
Compare at $11,620
IGISave 71.7%5.05ct | Princess | F | VS1 | Ideal
From $1,731
Compare at $6,110
IGISave 87.8%5.05ct | Princess | D | VS1 | Ideal
From $1,547
Compare at $12,720
IGISave 31.7%5.05ct | Princess | H | VS1 | Very Good
From $991
Compare at $1,451
IGISave 83.6%5.05ct | Princess | E | VVS2 | Excellent
From $1,095
Compare at $6,660
IGISave 83.1%5.05ct | Princess | E | VVS2 | Ideal
From $1,095
Compare at $6,470
IGISave 83.1%5.05ct | Princess | E | VVS2 | Ideal
From $1,095
Compare at $6,470
IGISave 83.6%5.05ct | Princess | E | VVS2 | Excellent
From $1,095
Compare at $6,660
IGISave 76.1%5.05ct | Princess | E | VS1 | Ideal
From $1,739
Compare at $7,280
IGISave 83.1%5.05ct | Princess | E | VVS2 | Ideal
From $1,095
Compare at $6,470
IGISave 83.6%5.05ct | Princess | E | VVS2 | Excellent
From $1,095
Compare at $6,660
IGISave 83.1%5.05ct | Princess | E | VVS2 | Ideal
From $1,095
Compare at $6,470
IGISave 49.1%5.05ct | Princess | D | VS1 | Very Good
From $1,645
Compare at $3,230
IGISave 81%5.05ct | Princess | E | VVS2 | Very Good
From $1,915
Compare at $10,080
IGISave 80.9%5.05ct | Princess | F | VS1 | Very Good
From $1,842
Compare at $9,640
IGISave 69.5%5.05ct | Princess | E | VS1 | Excellent
From $1,226
Compare at $4,016
IGISave 76.6%5.05ct | Princess | E | VVS2 | Excellent
From $1,562
Compare at $6,660
IGISave 76.6%5.05ct | Princess | E | VVS2 | Excellent
From $1,562
Compare at $6,660
IGISave 68.9%5.05ct | Princess | E | VVS1 | Ideal
From $4,399
Compare at $14,130
IGISave 85.3%5.05ct | Princess | E | VVS2 | Ideal
From $1,829
Compare at $12,460
IGISave 88.9%5.05ct | Princess | D | VS1 | Ideal
From $1,839
Compare at $16,510
5.05ct | Princess | E | VVS2 | Ideal
From $1,562
Compare at $1,920
5.05ct | Princess | E | VVS2 | Ideal
From $1,562
Compare at $1,920
IGISave 75.9%5.05ct | Princess | E | VVS2 | Ideal
From $1,576
Compare at $6,540
IGISave 76.6%5.05ct | Princess | E | VVS2 | Excellent
From $1,562
Compare at $6,660
IGISave 75.9%5.05ct | Princess | F | VVS2 | Excellent
From $1,458
Compare at $6,040
IGISave 83.1%5.05ct | Princess | E | VVS2 | Ideal
From $1,095
Compare at $6,470
IGISave 75.9%5.05ct | Princess | E | VVS2 | Ideal
From $1,562
Compare at $6,470
IGISave 75.9%5.05ct | Princess | F | VVS2 | Ideal
From $1,443
Compare at $5,980
IGISave 57%5.05ct | Princess | E | VVS2 | Ideal
From $1,246
Compare at $2,896
IGISave 76.6%5.05ct | Princess | E | VVS2 | Excellent
From $1,562
Compare at $6,660
IGISave 28.3%5.05ct | Princess | E | VVS2 | Ideal
From $8,940
Compare at $12,460
5.05ct | Princess | E | VVS2 | Ideal
From $1,095
Compare at $1,920
IGISave 80.9%5.05ct | Princess | F | VVS2 | Very Good
From $1,858
Compare at $9,730
IGISave 86.8%5.05ct | Princess | E | VVS2 | Ideal
From $1,649
Compare at $12,510
IGISave 87.5%5.05ct | Princess | E | VVS2 | Ideal
From $1,307
Compare at $10,470
IGISave 45.5%5.05ct | Princess | D | VS1 | Very Good
From $2,203
Compare at $4,045
IGISave 88.3%5.05ct | Princess | E | VVS2 | Ideal
From $1,467
Compare at $12,510
GIASave 60.4%5.05ct | Princess | F | VS1 | Excellent
From $7,495
Compare at $18,940
IGISave 84.8%5.05ct | Princess | G | VVS2 | Excellent
From $1,215
Compare at $7,980
Entry pricing in this category starts around $975.
What to Know When Shopping for 5.1 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $38,025 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 $1,562 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 1,181 comparable stones in this segment. Prices start around $975 and go up to $39,000.
Based on the latest market data, the average asking price is about $1,849 with a median around $1,562.
The observed spread is roughly $38,025 across tracked listings, which is about 97.5% 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 $1,562, 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 12 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 $38,025 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 5.1 carat Princess diamonds.