3.9 Carat Princess Lab Grown Diamond Prices Comparison
As of February 2026, 3.9 carat princess lab grown diamonds usually range from $725 to $20,894, with an average price of $1,780.In the last month, prices for these diamonds are down 2.3%.Compare 223 verified listings across 6 retailers tracked by CaratRadar.
3.9 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 223 verified 3.9-carat princess lab grown diamonds listed across 6 online retailers. Prices in this segment range from $725 to $20,894, with an average asking price of $1,780 and a median of $1,107.
The price spread of $20,169 (96.5% 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.
223 diamonds tracked in this segment
Price range: $725 to $20,894
Average price: $1,780
Median price: $1,107
Available across 6 retailers
Savings potential: up to 96.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
223
$725
$1,780
$1,107
$20,894
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 50.1%3.86ct | Princess | F | VVS2 | Ideal
From $2,489
Compare at $4,990
IGISave 86.3%3.86ct | Princess | E | VVS2 | Ideal
From $1,269
Compare at $9,280
IGISave 77.8%3.86ct | Princess | G | VS2 | Excellent
From $879
Compare at $3,960
IGISave 50.2%3.86ct | Princess | E | VS1 | Ideal
From $2,532
Compare at $5,080
IGISave 62.8%3.86ct | Princess | E | VVS2 | Very Good
From $1,267
Compare at $3,410
IGISave 84%3.86ct | Princess | E | VS1 | Very Good
From $1,332
Compare at $8,350
IGISave 90.1%3.86ct | Princess | E | VS1 | Excellent
From $878
Compare at $8,850
IGISave 74.7%3.86ct | Princess | E | VVS2 | Excellent
From $1,075
Compare at $4,245
IGISave 68.3%3.86ct | Princess | E | VS1 | Ideal
From $1,050
Compare at $3,315
GIASave 60.3%3.86ct | Princess | E | VVS2 | Excellent
From $2,405
Compare at $6,060
IGISave 50.2%3.86ct | Princess | E | VS1 | Ideal
From $2,532
Compare at $5,080
IGISave 86.5%3.86ct | Princess | E | VS1 | Ideal
From $1,194
Compare at $8,860
IGISave 74.7%3.86ct | Princess | E | VVS2 | Excellent
From $1,075
Compare at $4,245
IGISave 74.7%3.86ct | Princess | E | VVS2 | Ideal
From $1,075
Compare at $4,245
IGISave 68.3%3.86ct | Princess | E | VS1 | Ideal
From $1,050
Compare at $3,315
IGISave 74.1%3.86ct | Princess | E | VVS2 | Very Good
From $1,100
Compare at $4,245
IGISave 77.8%3.86ct | Princess | G | VVS2 | Excellent
From $1,054
Compare at $4,740
IGISave 88.3%3.86ct | Princess | F | VS1 | Ideal
From $895
Compare at $7,630
IGISave 42.9%3.86ct | Princess | F | VS1 | Excellent
From $2,650
Compare at $4,640
IGISave 74.8%3.86ct | Princess | E | VS1 | Excellent
From $2,220
Compare at $8,810
IGISave 88.3%3.86ct | Princess | E | VVS2 | Ideal
From $1,087
Compare at $9,270
IGISave 72%3.86ct | Princess | F | VVS2 | Ideal
From $1,102
Compare at $3,935
GIA3.86ct | Princess | G | VS1 | Ideal
From $4,246
Compare at $4,320
IGISave 50.2%3.86ct | Princess | E | VS1 | Excellent
From $2,532
Compare at $5,080
IGISave 76.2%3.86ct | Princess | E | VVS1 | Ideal
From $2,577
Compare at $10,820
GIASave 79.9%3.87ct | Princess | D | IF | Excellent
From $10,866
Compare at $54,150
IGISave 42.9%3.87ct | Princess | F | VS1 | Excellent
From $2,657
Compare at $4,650
IGISave 50.1%3.87ct | Princess | F | VVS2 | Ideal
From $2,494
Compare at $5,000
IGISave 58.6%3.87ct | Princess | E | VS2 | Very Good
From $2,225
Compare at $5,380
IGISave 65.1%3.87ct | Princess | E | VS2 | Ideal
From $1,091
Compare at $3,130
IGISave 68%3.87ct | Princess | E | VS1 | Ideal
From $1,065
Compare at $3,325
IGISave 74.7%3.87ct | Princess | E | VVS2 | Ideal
From $1,078
Compare at $4,255
IGISave 20.3%3.87ct | Princess | E | VVS2 | Ideal
From $858
Compare at $1,077
IGISave 88.4%3.87ct | Princess | E | VVS2 | Ideal
From $1,078
Compare at $9,300
GCALSave 76.8%3.87ct | Princess | E | VVS2 | Ideal
From $2,012
Compare at $8,680
GIASave 79.9%3.87ct | Princess | D | IF | Ideal
From $10,866
Compare at $54,150
IGISave 84.3%3.87ct | Princess | E | VS2 | Ideal
From $1,189
Compare at $7,550
IGISave 86.7%3.87ct | Princess | G | SI1 | Very Good
From $725
Compare at $5,440
IGISave 50.1%3.87ct | Princess | E | VS1 | Excellent
From $2,538
Compare at $5,090
IGISave 50.1%3.87ct | Princess | E | VS1 | Ideal
From $2,538
Compare at $5,090
IGISave 85.8%3.87ct | Princess | D | VS1 | Ideal
From $1,309
Compare at $9,230
IGISave 50.1%3.87ct | Princess | E | VS1 | Excellent
From $2,538
Compare at $5,090
IGISave 66.4%3.87ct | Princess | E | VS1 | Ideal
From $1,118
Compare at $3,325
IGISave 63.8%3.87ct | Princess | F | VS1 | Ideal
From $1,105
Compare at $3,055
IGISave 84.5%3.87ct | Princess | E | VVS2 | Very Good
From $1,349
Compare at $8,680
IGISave 42.8%3.87ct | Princess | F | VS2 | Ideal
From $2,454
Compare at $4,290
IGISave 79.1%3.87ct | Princess | D | IF | Very Good
From $11,461
Compare at $54,863
IGISave 74.7%3.87ct | Princess | E | VVS2 | Excellent
From $1,078
Compare at $4,255
IGISave 86.5%3.87ct | Princess | E | VS1 | Ideal
From $1,196
Compare at $8,880
IGISave 74.7%3.87ct | Princess | E | VVS2 | Ideal
From $1,078
Compare at $4,255
Entry pricing in this category starts around $725.
What to Know When Shopping for 3.9 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $20,169 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 $1,107 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 223 comparable stones in this segment. Prices start around $725 and go up to $20,894.
Based on the latest market data, the average asking price is about $1,780 with a median around $1,107.
The observed spread is roughly $20,169 across tracked listings, which is about 96.5% 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 $1,107, 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 $20,169 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 3.9 carat Princess diamonds.