6 Carat Marquise Lab Grown Diamond Prices Comparison
As of February 2026, 6 carat marquise lab grown diamonds usually range from $972 to $6,689, with an average price of $1,572.In the last month, prices for these diamonds are down 2.3%.Compare 522 verified listings across 7 retailers tracked by CaratRadar.
6 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 522 verified 6-carat marquise lab grown diamonds listed across 7 online retailers. Prices in this segment range from $972 to $6,689, with an average asking price of $1,572 and a median of $1,474.
The price spread of $5,717 (85.5% 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.
522 diamonds tracked in this segment
Price range: $972 to $6,689
Average price: $1,572
Median price: $1,474
Available across 7 retailers
Savings potential: up to 85.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
522
$972
$1,572
$1,475
$6,689
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 82.3%5.96ct | Marquise | F | VS2 | Ideal
From $987
Compare at $5,580
IGISave 89%5.96ct | Marquise | E | VS1 | Ideal
From $1,625
Compare at $14,740
IGISave 78.9%5.96ct | Marquise | H | VVS2 | Excellent
From $2,083
Compare at $9,890
IGISave 87.4%5.97ct | Marquise | D | VS1 | Ideal
From $1,928
Compare at $15,350
GIASave 40.7%5.97ct | Marquise | E | VVS2 | Excellent
From $6,656
Compare at $11,230
IGISave 75.5%5.98ct | Marquise | G | VS2 | Very Good
From $1,405
Compare at $5,740
IGISave 84.8%5.99ct | Marquise | F | VS1 | Excellent
From $1,627
Compare at $10,700
IGISave 83.7%5.99ct | Marquise | G | VS1 | Ideal
From $1,727
Compare at $10,610
IGISave 91.6%5.99ct | Marquise | E | VS1 | Very Good
From $1,361
Compare at $16,160
IGISave 76.2%6ct | Marquise | G | VVS2 | Very Good
From $1,546
Compare at $6,490
IGISave 75.5%6ct | Marquise | G | VS2 | Very Good
From $1,447
Compare at $5,910
IGISave 87.2%6ct | Marquise | E | VS2 | Ideal
From $1,521
Compare at $11,860
IGISave 74.7%6ct | Marquise | D | VS2 | Ideal
From $1,465
Compare at $5,790
IGISave 74.8%6ct | Marquise | E | VS1 | Ideal
From $1,608
Compare at $6,370
IGISave 75.9%6ct | Marquise | D | VS2 | Ideal
From $1,450
Compare at $6,010
IGISave 74.7%6ct | Marquise | E | VS2 | Ideal
From $1,465
Compare at $5,790
IGISave 77.3%6ct | Marquise | E | VS1 | Ideal
From $1,890
Compare at $8,310
IGISave 74.7%6ct | Marquise | E | VS2 | Ideal
From $1,465
Compare at $5,790
IGISave 74.7%6ct | Marquise | E | VS2 | Ideal
From $1,465
Compare at $5,790
IGISave 27.1%6ct | Marquise | E | VVS2 | Ideal
From $1,325
Compare at $1,817
IGISave 75.5%6ct | Marquise | G | VS1 | Ideal
From $1,355
Compare at $5,540
IGISave 82.7%6ct | Marquise | G | VS1 | Ideal
From $972
Compare at $5,620
IGISave 88.9%6ct | Marquise | E | VVS2 | Excellent
From $1,676
Compare at $15,080
IGISave 81.9%6ct | Marquise | F | VS1 | Ideal
From $1,450
Compare at $8,020
IGISave 76.6%6ct | Marquise | E | VS1 | Ideal
From $1,572
Compare at $6,710
IGISave 76.7%6ct | Marquise | E | VVS2 | Ideal
From $1,537
Compare at $6,600
IGISave 75%6ct | Marquise | G | VS1 | Ideal
From $1,392
Compare at $5,570
IGISave 75.8%6ct | Marquise | E | VVS2 | Ideal
From $1,537
Compare at $6,360
IGISave 86.7%6ct | Marquise | F | VS2 | Ideal
From $1,410
Compare at $10,580
IGISave 76.6%6ct | Marquise | F | VS1 | Ideal
From $1,415
Compare at $6,050
IGISave 87%6ct | Marquise | G | VS2 | Ideal
From $1,263
Compare at $9,740
IGISave 88.5%6ct | Marquise | F | VS1 | Ideal
From $1,415
Compare at $12,340
IGISave 75.8%6ct | Marquise | F | VS1 | Ideal
From $1,432
Compare at $5,930
IGISave 88.5%6ct | Marquise | F | VS1 | Ideal
From $1,415
Compare at $12,340
IGISave 87.6%6ct | Marquise | E | VS2 | Ideal
From $1,465
Compare at $11,860
IGISave 86.1%6ct | Marquise | G | VS2 | Ideal
From $1,355
Compare at $9,740
IGISave 21.1%6ct | Marquise | F | VS1 | Very Good
From $1,488
Compare at $1,886
IGISave 55.2%6ct | Marquise | F | VVS2 | Ideal
From $3,859
Compare at $8,611
IGISave 61.8%6ct | Marquise | G | VS1 | Ideal
From $1,680
Compare at $4,400
IGISave 82.7%6ct | Marquise | F | VS1 | Ideal
From $1,899
Compare at $10,960
IGISave 73%6ct | Marquise | E | VS1 | Very Good
From $4,287
Compare at $15,900
IGISave 74.8%6ct | Marquise | E | VS1 | Ideal
From $1,590
Compare at $6,300
IGISave 75.9%6ct | Marquise | E | VS1 | Ideal
From $1,502
Compare at $6,230
IGISave 76.6%6ct | Marquise | F | VS1 | Ideal
From $1,432
Compare at $6,130
IGISave 76.7%6ct | Marquise | E | VVS2 | Ideal
From $1,485
Compare at $6,360
IGISave 76.5%6ct | Marquise | E | VS1 | Ideal
From $1,590
Compare at $6,780
IGISave 71.7%6ct | Marquise | E | VS2 | Ideal
From $1,373
Compare at $4,860
IGISave 77.5%6ct | Marquise | E | VVS2 | Ideal
From $1,485
Compare at $6,600
IGISave 69.5%6ct | Marquise | F | VS1 | Ideal
From $1,392
Compare at $4,560
IGISave 75.6%6ct | Marquise | G | VS1 | Ideal
From $1,373
Compare at $5,620
Entry pricing in this category starts around $972.
What to Know When Shopping for 6 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $5,717 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 $1,474 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.
- Marquise diamonds maximize carat weight face-up and appear larger than their actual weight. Check symmetry carefully.
Frequently Asked Questions
We currently track 522 comparable stones in this segment. Prices start around $972 and go up to $6,689.
Based on the latest market data, the average asking price is about $1,572 with a median around $1,474.
The observed spread is roughly $5,717 across tracked listings, which is about 85.5% 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 $1,474, 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 7 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 $5,717 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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