3.9 Carat Princess Lab Grown Diamond Prices Comparison
As of April 2026, 3.9 carat princess lab grown diamonds usually range from $590 to $36,661, with an average price of $3,264.In the last month, prices for these diamonds are up 0.1%.Compare 149 verified listings across 5 retailers tracked by CaratRadar.
3.9 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 149 verified 3.9-carat princess lab grown diamonds listed across 5 online retailers. Prices in this segment range from $590 to $36,661, with an average asking price of $3,264 and a median of $2,387.
The price spread of $36,071 (98.4% 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.
149 diamonds tracked in this segment
Price range: $590 to $36,661
Average price: $3,264
Median price: $2,387
Available across 5 retailers
Savings potential: up to 98.4%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
149
$590
$3,264
$2,387
$36,661
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 73.2%IGI | 3.9ct | Princess | G | VS1 | Ideal
From $1,097
Compare at $4,100
Save 66.6%IGI | 3.9ct | Princess | F | VS1 | Ideal
From $1,030
Compare at $3,080
Save 75.6%IGI | 3.9ct | Princess | F | VVS2 | Ideal
From $1,363
Compare at $5,580
Save 67.2%IGI | 3.9ct | Princess | E | VS1 | Ideal
From $1,100
Compare at $3,350
Save 72.3%IGI | 3.9ct | Princess | F | VVS2 | Ideal
From $1,100
Compare at $3,975
Save 67.2%IGI | 3.9ct | Princess | E | VS1 | Ideal
From $1,100
Compare at $3,350
Save 81.7%IGI | 3.9ct | Princess | E | VVS2 | Ideal
From $1,060
Compare at $5,810
Save 79.9%IGI | 3.9ct | Princess | E | VS1 | Ideal
From $1,113
Compare at $5,540
Save 67.2%IGI | 3.9ct | Princess | E | VS1 | Excellent
From $1,100
Compare at $3,350
Save 64.3%IGI | 3.9ct | Princess | F | VS1 | Ideal
From $1,100
Compare at $3,080
Save 76.2%IGI | 3.9ct | Princess | F | VS2 | Ideal
From $1,059
Compare at $4,440
Save 67.2%IGI | 3.9ct | Princess | E | VS1 | Ideal
From $1,100
Compare at $3,350
Save 41.8%IGI | 3.9ct | Princess | E | VVS2 | Excellent
From $1,060
Compare at $1,820
Save 64.3%IGI | 3.9ct | Princess | F | VS1 | Excellent
From $1,099
Compare at $3,080
Save 67.2%IGI | 3.9ct | Princess | E | VS1 | Excellent
From $1,100
Compare at $3,350
Save 41.8%IGI | 3.9ct | Princess | E | VVS2 | Excellent
From $1,072
Compare at $1,841
Save 79.5%IGI | 3.9ct | Princess | F | VVS2 | Ideal
From $1,113
Compare at $5,440
Save 79.3%IGI | 3.9ct | Princess | F | VS1 | Excellent
From $1,103
Compare at $5,340
Save 86.6%IGI | 3.9ct | Princess | F | VVS2 | Excellent
From $1,113
Compare at $8,290
Save 41.3%IGI | 3.9ct | Princess | E | VVS2 | Excellent
From $1,176
Compare at $2,005
Save 67.3%IGI | 3.9ct | Princess | E | VS1 | Very Good
From $1,097
Compare at $3,350
Save 65.7%GCAL | 3.91ct | Princess | D | VVS2 | Ideal
From $4,873
Compare at $14,210
Save 79.2%IGI | 3.91ct | Princess | F | VS1 | Excellent
From $1,173
Compare at $5,640
Save 71.8%IGI | 3.91ct | Princess | D | VS1 | Ideal
From $1,638
Compare at $5,800
Save 83.1%IGI | 3.91ct | Princess | E | VS2 | Excellent
From $1,271
Compare at $7,500
Save 70.7%IGI | 3.91ct | Princess | D | VVS2 | Ideal
From $1,442
Compare at $4,925
Save 83.6%IGI | 3.91ct | Princess | E | VS1 | Very Good
From $1,229
Compare at $7,490
Save 75.6%IGI | 3.91ct | Princess | E | VVS2 | Ideal
From $1,050
Compare at $4,300
Save 82.8%IGI | 3.91ct | Princess | E | VVS2 | Excellent
From $1,063
Compare at $6,170
Save 32.9%IGI | 3.91ct | Princess | E | VVS2 | Ideal
From $1,062
Compare at $1,583
Save 41.8%IGI | 3.91ct | Princess | E | VVS2 | Excellent
From $1,062
Compare at $1,825
Save 64.3%IGI | 3.91ct | Princess | F | VS1 | Ideal
From $1,102
Compare at $3,085
Save 67.2%IGI | 3.91ct | Princess | E | VS1 | Ideal
From $1,102
Compare at $3,360
Save 67.2%IGI | 3.91ct | Princess | E | VS1 | Ideal
From $1,102
Compare at $3,360
Save 67.2%IGI | 3.91ct | Princess | E | VS1 | Ideal
From $1,102
Compare at $3,360
Save 66.8%IGI | 3.91ct | Princess | E | VS1 | Excellent
From $1,116
Compare at $3,360
Save 66.8%IGI | 3.91ct | Princess | E | VS1 | Ideal
From $1,116
Compare at $3,360
Save 81.1%IGI | 3.91ct | Princess | E | VS1 | Ideal
From $1,116
Compare at $5,890
Save 83.5%IGI | 3.91ct | Princess | E | VVS2 | Ideal
From $1,076
Compare at $6,510
Save 37.9%IGI | 3.92ct | Princess | F | SI1 | Very Good
From $1,021
Compare at $1,644
Save 70.2%IGI | 3.92ct | Princess | D | VVS2 | Ideal
From $1,469
Compare at $4,935
Save 86.1%IGI | 3.92ct | Princess | E | VS1 | Excellent
From $1,250
Compare at $9,000
Save 83.4%IGI | 3.92ct | Princess | F | VS1 | Ideal
From $1,295
Compare at $7,780
Save 51.3%IGI | 3.92ct | Princess | D | IF | Very Good
From $9,045
Compare at $18,590
Save 75.3%IGI | 3.92ct | Princess | E | VVS2 | Ideal
From $1,066
Compare at $4,310
Save 75.3%IGI | 3.92ct | Princess | E | VVS2 | Ideal
From $1,066
Compare at $4,310
Save 66.8%IGI | 3.92ct | Princess | E | VS1 | Ideal
From $1,119
Compare at $3,370
Save 67.2%IGI | 3.92ct | Princess | E | VS1 | Ideal
From $1,105
Compare at $3,370
Save 41.8%IGI | 3.92ct | Princess | E | VVS2 | Excellent
From $1,065
Compare at $1,829
Save 67.2%IGI | 3.92ct | Princess | E | VS1 | Excellent
From $1,105
Compare at $3,370
Entry pricing in this category starts around $590.
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 $36,071 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 $2,387 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 149 comparable stones in this segment. Prices start around $590 and go up to $36,661.
Based on the latest market data, the average asking price is about $3,264 with a median around $2,387.
The observed spread is roughly $36,071 across tracked listings, which is about 98.4% 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 $2,387, 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 5 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 $36,071 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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