7 Carat Marquise Lab Grown Diamond Prices Comparison
As of May 2026, 7 carat marquise lab grown diamonds usually range from $650 to $20,115, with an average price of $4,285.In the last month, prices for these diamonds are down 3.8%.Compare 77 verified listings across 7 retailers tracked by CaratRadar.
7 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 77 verified 7-carat marquise lab grown diamonds listed across 7 online retailers. Prices in this segment range from $650 to $20,115, with an average asking price of $4,285 and a median of $3,200.
The price spread of $19,465 (96.8% 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.
77 diamonds tracked in this segment
Price range: $650 to $20,115
Average price: $4,285
Median price: $3,200
Available across 7 retailers
Savings potential: up to 96.8%
Price Range Overview
As of May 31, 2026Real market range for this carat, shape, and diamond type.
77
$650
$4,285
$3,200
$20,115
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 63.5%IGI | 7.09ct | Marquise | H | VS2 | Ideal
From $1,340
Compare at $3,675
Save 74.5%IGI | 7.07ct | Marquise | F | VVS2 | Excellent
From $1,372
Compare at $5,388
Save 75%IGI | 7.07ct | Marquise | F | VS1 | Ideal
From $1,372
Compare at $5,498
Save 75%IGI | 7.09ct | Marquise | F | VVS2 | Ideal
From $1,376
Compare at $5,513
Save 56.8%IGI | 7.02ct | Marquise | F | VVS2 | Very Good
From $1,392
Compare at $3,221
Save 69.6%IGI | 7.02ct | Marquise | G | VVS2 | Very Good
From $1,398
Compare at $4,597
Save 66.1%IGI | 7.06ct | Marquise | F | VVS2 | Ideal
From $1,422
Compare at $4,190
Save 75.2%IGI | 7.03ct | Marquise | F | VS2 | Very Good
From $1,467
Compare at $5,921
Save 66.4%IGI | 7.01ct | Marquise | F | VVS2 | Excellent
From $1,470
Compare at $4,379
Save 62%IGI | 7.03ct | Marquise | G | VS2 | Very Good
From $1,480
Compare at $3,890
Save 72.7%IGI | 7.02ct | Marquise | G | VVS2 | Very Good
From $1,504
Compare at $5,506
Save 66.5%IGI | 7.05ct | Marquise | F | VVS2 | Very Good
From $1,505
Compare at $4,490
Save 64.4%IGI | 7.02ct | Marquise | F | VS1 | Ideal
From $1,508
Compare at $4,235
Save 72.7%IGI | 7.04ct | Marquise | G | VVS2 | Very Good
From $1,509
Compare at $5,522
Save 74.7%IGI | 7.04ct | Marquise | F | VS2 | Very Good
From $1,527
Compare at $6,039
Save 22.2%IGI | 7ct | Marquise | F | VS1 | Ideal
From $1,550
Compare at $1,993
Save 63.6%IGI | 7.04ct | Marquise | F | VS1 | Very Good
From $1,556
Compare at $4,270
Save 66.7%IGI | 7.09ct | Marquise | G | VVS2 | Very Good
From $1,567
Compare at $4,709
Save 63.5%IGI | 7ct | Marquise | F | VVS2 | Ideal
From $1,594
Compare at $4,373
Save 63.5%IGI | 7ct | Marquise | F | VVS2 | Very Good
From $1,594
Compare at $4,373
Save 63.6%IGI | 7.02ct | Marquise | F | VVS2 | Excellent
From $1,598
Compare at $4,385
Save 63.5%IGI | 7.03ct | Marquise | F | VVS2 | Very Good
From $1,601
Compare at $4,391
Save 63.6%IGI | 7.04ct | Marquise | F | VVS2 | Very Good
From $1,602
Compare at $4,398
Save 63.6%IGI | 7.05ct | Marquise | F | VVS2 | Very Good
From $1,605
Compare at $4,404
Save 63.6%IGI | 7.07ct | Marquise | F | VVS2 | Excellent
From $1,609
Compare at $4,417
Save 63.6%IGI | 7.08ct | Marquise | F | VVS2 | Ideal
From $1,612
Compare at $4,423
Save 63.6%IGI | 7.08ct | Marquise | F | VVS2 | Excellent
From $1,612
Compare at $4,423
Save 63.6%IGI | 7.09ct | Marquise | F | VVS2 | Ideal
From $1,614
Compare at $4,429
Save 57.9%IGI | 7.01ct | Marquise | G | VS2 | Very Good
From $1,621
Compare at $3,852
Save 63.6%IGI | 7.02ct | Marquise | F | VVS2 | Very Good
From $1,629
Compare at $4,470
Save 59.4%IGI | 7.08ct | Marquise | G | VS2 | Very Good
From $1,632
Compare at $4,015
Save 60.7%IGI | 7.01ct | Marquise | F | VS1 | Ideal
From $1,679
Compare at $4,267
Save 59.3%IGI | 7.01ct | Marquise | E | VS1 | Ideal
From $1,700
Compare at $4,175
Save 58.9%IGI | 7.02ct | Marquise | E | VS1 | Very Good
From $1,734
Compare at $4,216
Save 72.9%IGI | 7ct | Marquise | FANCY | VS2 | Very Good
From $1,736
Compare at $6,396
Save 67.2%IGI | 7.05ct | Marquise | E | VVS2 | Very Good
From $1,754
Compare at $5,345
Save 67.1%IGI | 7.04ct | Marquise | E | VVS2 | Ideal
From $1,755
Compare at $5,337
Save 67.2%IGI | 7.05ct | Marquise | E | VVS2 | Very Good
From $1,755
Compare at $5,345
Save 72.9%IGI | 7.08ct | Marquise | FANCY | VS2 | Very Good
From $1,756
Compare at $6,469
Save 67.2%IGI | 7.07ct | Marquise | E | VVS2 | Excellent
From $1,760
Compare at $5,360
Save 27.3%IGI | 7.01ct | Marquise | E | VVS2 | Very Good
From $1,772
Compare at $2,438
Save 61%IGI | 7.08ct | Marquise | E | VVS2 | Very Good
From $1,776
Compare at $4,550
IGI | 7.08ct | Marquise | G | VVS2 | Very Good
From $1,778
Compare at $1,916
Save 66.4%IGI | 7.02ct | Marquise | E | VVS2 | Very Good
From $1,790
Compare at $5,322
Save 66.4%IGI | 7.03ct | Marquise | E | VVS2 | Very Good
From $1,793
Compare at $5,330
Save 55%IGI | 7ct | Marquise | F | VVS2 | Very Good
From $1,855
Compare at $4,118
Save 53.6%IGI | 7.03ct | Marquise | G | VS1 | Very Good
From $1,863
Compare at $4,019
Save 45.2%IGI | 7.01ct | Marquise | H | VS2 | Ideal
From $1,910
Compare at $3,487
IGI | 7.07ct | Marquise | F | VVS2 | Very Good
From $1,923
Compare at $2,073
Save 56.5%IGI | 7.08ct | Marquise | F | VVS2 | Very Good
From $1,959
Compare at $4,508
Entry pricing in this category starts around $650.
What to Know When Shopping for 7 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $19,465 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 $3,200 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 77 comparable stones in this segment. Prices start around $650 and go up to $20,115.
Based on the latest market data, the average asking price is about $4,285 with a median around $3,200.
The observed spread is roughly $19,465 across tracked listings, which is about 96.8% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $4,285. The median price is $3,200, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
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 $19,465 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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