11 Carat Marquise Lab Grown Diamond Prices Comparison
As of March 2026, 11 carat marquise lab grown diamonds usually range from $1,988 to $15,425, with an average price of $5,032.In the last month, prices for these diamonds are up 1.9%.Compare 31 verified listings across 5 retailers tracked by CaratRadar.
11 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 31 verified 11-carat marquise lab grown diamonds listed across 5 online retailers. Prices in this segment range from $1,988 to $15,425, with an average asking price of $5,032 and a median of $4,000.
The price spread of $13,437 (87.1% 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.
31 diamonds tracked in this segment
Price range: $1,988 to $15,425
Average price: $5,032
Median price: $4,000
Available across 5 retailers
Savings potential: up to 87.1%
Price Range Overview
As of Mar 1, 2026Real market range for this carat, shape, and diamond type.
31
$1,988
$5,032
$4,000
$15,425
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 88.7%10.95ct | Marquise | F | VS1 | Excellent
From $2,558
Compare at $22,630
IGISave 66.6%11ct | Marquise | E | VVS2 | Ideal
From $5,371
Compare at $16,060
IGISave 80.8%11ct | Marquise | E | VVS2 | Ideal
From $3,085
Compare at $16,060
IGISave 65.7%11ct | Marquise | E | VVS2 | Excellent
From $5,287
Compare at $15,400
IGISave 40%11ct | Marquise | F | VVS2 | Ideal
From $7,402
Compare at $12,343
IGISave 44.4%11ct | Marquise | E | VVS2 | Excellent
From $15,400
Compare at $27,700
IGISave 79.9%11ct | Marquise | F | VVS1 | Excellent
From $5,641
Compare at $28,080
IGISave 61.7%11ct | Marquise | F | VVS2 | Ideal
From $2,557
Compare at $6,680
IGISave 89.6%11ct | Marquise | F | VVS2 | Excellent
From $2,573
Compare at $24,780
IGISave 83.9%11.01ct | Marquise | F | VVS2 | Excellent
From $4,000
Compare at $24,910
IGISave 50.3%11.01ct | Marquise | F | VS1 | Ideal
From $11,250
Compare at $22,650
IGISave 69.3%11.01ct | Marquise | F | VVS2 | Excellent
From $4,084
Compare at $13,320
IGISave 91%11.01ct | Marquise | G | VVS2 | Ideal
From $1,988
Compare at $21,970
IGISave 81.6%11.01ct | Marquise | E | VVS2 | Ideal
From $2,565
Compare at $13,950
IGISave 91.3%11.02ct | Marquise | E | VS1 | Ideal
From $2,372
Compare at $27,390
IGISave 69.6%11.02ct | Marquise | F | VVS2 | Excellent
From $4,046
Compare at $13,330
IGISave 44.4%11.02ct | Marquise | E | VVS2 | Ideal
From $15,425
Compare at $27,750
IGISave 41.2%11.02ct | Marquise | F | VVS2 | Ideal
From $7,415
Compare at $12,618
IGISave 80.9%11.03ct | Marquise | E | VVS2 | Ideal
From $3,069
Compare at $16,100
IGISave 81.9%11.03ct | Marquise | E | VVS2 | Ideal
From $3,136
Compare at $17,290
IGISave 52.4%11.03ct | Marquise | F | VVS2 | Ideal
From $3,548
Compare at $7,454
IGISave 88.6%11.03ct | Marquise | G | VVS2 | Ideal
From $2,526
Compare at $22,160
IGISave 89.7%11.03ct | Marquise | G | VVS2 | Ideal
From $2,269
Compare at $22,060
IGISave 83.8%11.03ct | Marquise | F | VVS2 | Excellent
From $4,648
Compare at $28,650
IGISave 89.6%11.04ct | Marquise | E | VVS2 | Ideal
From $2,873
Compare at $27,660
IGISave 70.9%11.04ct | Marquise | F | VVS2 | Ideal
From $4,053
Compare at $13,910
IGISave 94.8%11.04ct | Marquise | F | VS1 | Ideal
From $2,462
Compare at $47,210
IGISave 83.8%11.04ct | Marquise | F | VVS2 | Ideal
From $4,652
Compare at $28,670
IGISave 89.3%11.05ct | Marquise | F | VVS2 | Excellent
From $2,670
Compare at $24,940
IGISave 67.1%11.05ct | Marquise | E | VVS2 | Ideal
From $5,311
Compare at $16,130
IGISave 73.2%11.05ct | Marquise | E | VS1 | Ideal
From $11,764
Compare at $43,830
Entry pricing in this category starts around $1,988.
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 $13,437 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 $4,000 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 31 comparable stones in this segment. Prices start around $1,988 and go up to $15,425.
Based on the latest market data, the average asking price is about $5,032 with a median around $4,000.
The observed spread is roughly $13,437 across tracked listings, which is about 87.1% 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 $4,000, 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 $13,437 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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