6.4 Carat Princess Lab Grown Diamond Prices Comparison
As of February 2026, 6.4 carat princess lab grown diamonds usually range from $1,384 to $4,551, with an average price of $2,004.In the last month, prices for these diamonds are down 4.5%.Compare 14 verified listings across 3 retailers tracked by CaratRadar.
6.4 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 14 verified 6.4-carat princess lab grown diamonds listed across 3 online retailers. Prices in this segment range from $1,384 to $4,551, with an average asking price of $2,004 and a median of $1,805.
The price spread of $3,167 (69.6% 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.
14 diamonds tracked in this segment
Price range: $1,384 to $4,551
Average price: $2,004
Median price: $1,805
Available across 3 retailers
Savings potential: up to 69.6%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
14
$1,384
$2,004
$1,805
$4,551
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 82.9%6.35ct | Princess | G | VS1 | Excellent
From $1,384
Compare at $8,110
IGISave 87.5%6.37ct | Princess | F | VS1 | Excellent
From $1,651
Compare at $13,180
IGISave 86.2%6.38ct | Princess | G | VS2 | Excellent
From $1,439
Compare at $10,430
IGISave 87.6%6.4ct | Princess | G | VS1 | Excellent
From $1,393
Compare at $11,280
IGISave 80.8%6.4ct | Princess | G | VS1 | Ideal
From $1,903
Compare at $9,900
IGISave 85.9%6.4ct | Princess | E | VVS2 | Excellent
From $2,278
Compare at $16,100
IGISave 88.7%6.4ct | Princess | G | VVS2 | Excellent
From $1,455
Compare at $12,830
IGISave 62%6.42ct | Princess | G | VS2 | Very Good
From $1,446
Compare at $3,810
IGISave 52.1%6.42ct | Princess | F | VVS2 | Very Good
From $2,192
Compare at $4,573
IGISave 89.2%6.42ct | Princess | E | VS1 | Ideal
From $1,771
Compare at $16,370
IGISave 83.8%6.43ct | Princess | G | VS1 | Ideal
From $2,203
Compare at $13,610
IGISave 86.5%6.43ct | Princess | G | VS1 | Ideal
From $1,839
Compare at $13,610
IGISave 81.4%6.44ct | Princess | F | VS1 | Ideal
From $2,551
Compare at $13,690
IGISave 73%6.45ct | Princess | F | VVS2 | Ideal
From $4,551
Compare at $16,880
Entry pricing in this category starts around $1,384.
What to Know When Shopping for 6.4 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $3,167 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 $1,805 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 14 comparable stones in this segment. Prices start around $1,384 and go up to $4,551.
Based on the latest market data, the average asking price is about $2,004 with a median around $1,805.
The observed spread is roughly $3,167 across tracked listings, which is about 69.6% 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 $1,805, 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 3 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 $3,167 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 6.4 carat Princess diamonds.