11 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 11 carat marquise lab grown diamonds usually range from $1,950 to $38,889, with an average price of $9,307.In the last month, prices for these diamonds are down 0.4%.Compare 43 verified listings across 6 retailers tracked by CaratRadar.
11 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 43 verified 11-carat marquise lab grown diamonds listed across 6 online retailers. Prices in this segment range from $1,950 to $38,889, with an average asking price of $9,307 and a median of $5,857.
The price spread of $36,939 (95.0% 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.
43 diamonds tracked in this segment
Price range: $1,950 to $38,889
Average price: $9,307
Median price: $5,857
Available across 6 retailers
Savings potential: up to 95.0%
Price Range Overview
As of Apr 17, 2026Real market range for this carat, shape, and diamond type.
43
$1,950
$9,307
$5,857
$38,889
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 84%IGI | 11ct | Marquise | F | VVS2 | Excellent
From $3,954
Compare at $24,780
Save 68.8%IGI | 11ct | Marquise | F | VVS2 | Ideal
From $3,352
Compare at $10,740
Save 60.3%IGI | 11ct | Marquise | F | VVS1 | Excellent
From $11,164
Compare at $28,130
Save 87.6%IGI | 11ct | Marquise | F | VVS2 | Ideal
From $3,095
Compare at $24,900
Save 64.4%IGI | 11ct | Marquise | E | VVS2 | Excellent
From $4,857
Compare at $13,630
Save 74%IGI | 11ct | Marquise | E | VVS2 | Ideal
From $3,565
Compare at $13,730
Save 64.4%IGI | 11ct | Marquise | E | VVS2 | Excellent
From $4,857
Compare at $13,630
Save 87%IGI | 11.01ct | Marquise | G | VVS2 | Ideal
From $2,870
Compare at $22,080
Save 70.3%IGI | 11.01ct | Marquise | E | VVS2 | Ideal
From $3,737
Compare at $12,600
Save 53.6%IGI | 11.01ct | Marquise | F | VS1 | Ideal
From $10,520
Compare at $22,650
Save 15.1%IGI | 11.01ct | Marquise | F | VVS2 | Excellent
From $4,000
Compare at $4,710
Save 86.9%IGI | 11.02ct | Marquise | E | VS1 | Ideal
From $3,584
Compare at $27,390
Save 87.6%IGI | 11.02ct | Marquise | F | VVS2 | Ideal
From $3,100
Compare at $24,940
Save 82.4%IGI | 11.02ct | Marquise | E | VVS2 | Ideal
From $4,880
Compare at $27,740
IGI | 11.02ct | Marquise | F | VS1 | Ideal
From $3,041
Compare at $22,790
Save 70.4%IGI | 11.03ct | Marquise | E | VVS2 | Ideal
From $3,762
Compare at $12,690
Save 36.4%IGI | 11.03ct | Marquise | F | VVS2 | Ideal
From $3,538
Compare at $5,560
Save 82.8%IGI | 11.03ct | Marquise | G | VVS2 | Ideal
From $3,785
Compare at $22,060
Save 87.6%IGI | 11.03ct | Marquise | F | VVS2 | Very Good
From $3,105
Compare at $24,970
Save 28.6%IGI | 11.03ct | Marquise | E | VVS2 | Ideal
From $3,485
Compare at $4,884
Save 37.8%IGI | 11.03ct | Marquise | F | VVS2 | Ideal
From $5,482
Compare at $8,816
IGI | 11.03ct | Marquise | E | VVS2 | Ideal
From $3,363
Compare at $27,760
Save 87.4%IGI | 11.03ct | Marquise | F | VVS2 | Ideal
From $3,150
Compare at $24,980
Save 73%IGI | 11.04ct | Marquise | E | VVS2 | Ideal
From $4,246
Compare at $15,750
Save 46.4%IGI | 11.04ct | Marquise | F | VS1 | Ideal
From $3,279
Compare at $6,122
Save 15.1%IGI | 11.04ct | Marquise | F | VVS2 | Ideal
From $4,011
Compare at $4,722
Save 57.3%IGI | 11.05ct | Marquise | E | VS1 | Ideal
From $11,764
Compare at $27,520
Save 79%IGI | 11.05ct | Marquise | F | VVS2 | Excellent
From $5,238
Compare at $24,940
IGI | 11.05ct | Marquise | F | VVS2 | Ideal
From $3,110
Compare at $25,010
Save 37%IGI | 11.05ct | Marquise | E | VVS2 | Ideal
From $3,433
Compare at $5,448
IGI | 11.05ct | Marquise | F | VVS2 | Ideal
From $2,140
Compare at $25,010
Save 87.3%IGI | 11.05ct | Marquise | F | VS1 | Ideal
From $2,901
Compare at $22,840
Save 68.8%IGI | 11.06ct | Marquise | F | VVS2 | Ideal
From $3,352
Compare at $10,740
IGI | 11.06ct | Marquise | F | VVS2 | Ideal
From $3,110
Compare at $25,030
Save 29.8%IGI | 11.06ct | Marquise | E | VVS2 | Ideal
From $3,436
Compare at $4,898
Save 27.4%IGI | 11.06ct | Marquise | E | VS1 | Excellent
From $3,373
Compare at $4,646
Save 73%IGI | 11.07ct | Marquise | E | VVS2 | Ideal
From $4,257
Compare at $15,790
Save 86.3%IGI | 11.07ct | Marquise | F | VS1 | Ideal
From $3,110
Compare at $22,770
Save 66%IGI | 11.07ct | Marquise | F | VS2 | Very Good
From $6,642
Compare at $19,520
Save 51.1%IGI | 11.08ct | Marquise | I | VS2 | Ideal
From $5,833
Compare at $11,920
Save 68.8%IGI | 11.08ct | Marquise | F | VVS2 | Ideal
From $3,352
Compare at $10,740
Save 68.8%IGI | 11.09ct | Marquise | F | VVS2 | Ideal
From $3,352
Compare at $10,740
Save 81.5%IGI | 11.09ct | Marquise | F | VVS2 | Ideal
From $4,644
Compare at $25,090
Entry pricing in this category starts around $1,950.
What to Know When Shopping for 11 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $36,939 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 $5,857 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 43 comparable stones in this segment. Prices start around $1,950 and go up to $38,889.
Based on the latest market data, the average asking price is about $9,307 with a median around $5,857.
The observed spread is roughly $36,939 across tracked listings, which is about 95.0% 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 $5,857, 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 $36,939 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 11 carat Marquise diamonds.