6.5 Carat Princess Lab Grown Diamond Prices Comparison
As of February 2026, 6.5 carat princess lab grown diamonds usually range from $1,506 to $8,892, with an average price of $2,457.In the last month, prices for these diamonds are down 3.9%.Compare 28 verified listings across 3 retailers tracked by CaratRadar.
6.5 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 28 verified 6.5-carat princess lab grown diamonds listed across 3 online retailers. Prices in this segment range from $1,506 to $8,892, with an average asking price of $2,457 and a median of $1,933.
The price spread of $7,386 (83.1% 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.
28 diamonds tracked in this segment
Price range: $1,506 to $8,892
Average price: $2,457
Median price: $1,933
Available across 3 retailers
Savings potential: up to 83.1%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
28
$1,506
$2,457
$1,933
$8,892
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
6.46ct | Princess | F | VS1 | Excellent
From $2,020
Compare at $3,359
IGISave 81.4%6.47ct | Princess | E | VS1 | Very Good
From $2,436
Compare at $13,130
IGISave 77.2%6.48ct | Princess | G | VS1 | Ideal
From $1,974
Compare at $8,640
IGISave 86.8%6.49ct | Princess | E | VS1 | Ideal
From $2,179
Compare at $16,450
IGISave 85.1%6.5ct | Princess | G | VS1 | Ideal
From $1,587
Compare at $10,620
IGISave 48.3%6.5ct | Princess | FANCY | VS2 | Very Good
From $2,290
Compare at $4,428
IGISave 83.8%6.5ct | Princess | G | VS1 | Ideal
From $2,227
Compare at $13,760
IGISave 79%6.5ct | Princess | F | VS1 | Ideal
From $1,845
Compare at $8,780
IGISave 83.8%6.5ct | Princess | E | VS2 | Very Good
From $2,219
Compare at $13,670
GIASave 66.2%6.5ct | Princess | E | VS1 | Excellent
From $8,427
Compare at $24,950
IGISave 86.3%6.5ct | Princess | G | VS1 | Ideal
From $1,886
Compare at $13,760
IGISave 80.8%6.51ct | Princess | G | VS1 | Ideal
From $1,931
Compare at $10,060
IGISave 69.4%6.51ct | Princess | F | VS1 | Ideal
From $1,572
Compare at $5,140
IGISave 89.2%6.51ct | Princess | D | VS1 | Ideal
From $1,819
Compare at $16,850
6.51ct | Princess | E | VVS2 | Ideal
From $1,662
Compare at $16,540
IGISave 88.5%6.51ct | Princess | D | VS1 | Ideal
From $1,936
Compare at $16,800
IGISave 81.2%6.52ct | Princess | F | VS1 | Ideal
From $1,837
Compare at $9,790
IGISave 87.7%6.52ct | Princess | F | VVS2 | Ideal
From $1,826
Compare at $14,820
IGISave 21.2%6.52ct | Princess | F | VS1 | Very Good
From $1,506
Compare at $1,912
IGISave 55.1%6.53ct | Princess | E | VS1 | Ideal
From $1,853
Compare at $4,125
IGISave 86.2%6.53ct | Princess | F | VVS2 | Excellent
From $2,038
Compare at $14,780
IGISave 81.1%6.54ct | Princess | G | VS1 | Ideal
From $1,908
Compare at $10,110
IGISave 81.7%6.54ct | Princess | F | VVS2 | Ideal
From $3,136
Compare at $17,120
IGISave 32.8%6.54ct | Princess | G | VVS2 | Ideal
From $2,270
Compare at $3,376
IGISave 87.1%6.54ct | Princess | E | VS1 | Excellent
From $2,157
Compare at $16,710
6.54ct | Princess | E | VVS2 | Ideal
From $1,669
Compare at $16,580
GCALSave 68.1%6.54ct | Princess | E | VVS2 | Excellent
From $8,892
Compare at $27,840
IGISave 76.4%6.54ct | Princess | E | VVS2 | Ideal
From $1,694
Compare at $7,190
Entry pricing in this category starts around $1,506.
What to Know When Shopping for 6.5 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $7,386 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 $1,933 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 28 comparable stones in this segment. Prices start around $1,506 and go up to $8,892.
Based on the latest market data, the average asking price is about $2,457 with a median around $1,933.
The observed spread is roughly $7,386 across tracked listings, which is about 83.1% 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 $1,933, 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 $7,386 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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