2.6 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 2.6 carat marquise lab grown diamonds usually range from $545 to $19,899, with an average price of $3,303.In the last month, prices for these diamonds are down 0.6%.Compare 114 verified listings across 6 retailers tracked by CaratRadar.
2.6 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 114 verified 2.6-carat marquise lab grown diamonds listed across 6 online retailers. Prices in this segment range from $545 to $19,899, with an average asking price of $3,303 and a median of $2,674.
The price spread of $19,354 (97.3% 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.
114 diamonds tracked in this segment
Price range: $545 to $19,899
Average price: $3,303
Median price: $2,674
Available across 6 retailers
Savings potential: up to 97.3%
Price Range Overview
As of Apr 15, 2026Real market range for this carat, shape, and diamond type.
114
$545
$3,303
$2,674
$19,899
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 48.6%IGI | 2.61ct | Marquise | G | VS2 | Ideal
From $2,227
Compare at $4,332
Save 47.1%IGI | 2.61ct | Marquise | E | VVS1 | Ideal
From $3,410
Compare at $6,440
Save 82.3%IGI | 2.61ct | Marquise | E | VVS2 | Ideal
From $1,016
Compare at $5,740
Save 77.2%IGI | 2.61ct | Marquise | E | VVS1 | Very Good
From $1,962
Compare at $8,590
Save 81.5%IGI | 2.61ct | Marquise | D | VVS2 | Ideal
From $1,255
Compare at $6,780
Save 70.9%IGI | 2.61ct | Marquise | D | VVS1 | Excellent
From $2,302
Compare at $7,900
Save 82.3%IGI | 2.61ct | Marquise | F | VVS2 | Ideal
From $685
Compare at $3,870
Save 78.4%IGI | 2.61ct | Marquise | F | VVS2 | Excellent
From $1,143
Compare at $5,300
Save 77.2%IGI | 2.61ct | Marquise | E | VS2 | Ideal
From $1,097
Compare at $4,810
Save 62.9%IGI | 2.61ct | Marquise | F | VS1 | Very Good
From $1,101
Compare at $2,970
Save 62.7%IGI | 2.61ct | Marquise | F | VS2 | Very Good
From $1,108
Compare at $2,970
Save 54.1%IGI | 2.61ct | Marquise | FANCY | VS1 | Good
From $2,510
Compare at $5,472
Save 78.3%IGI | 2.61ct | Marquise | E | VS1 | Very Good
From $899
Compare at $4,150
Save 65.8%IGI | 2.61ct | Marquise | D | VVS2 | Very Good
From $2,227
Compare at $6,519
Save 74.2%GCAL | 2.62ct | Marquise | D | VVS2 | Excellent
From $2,781
Compare at $10,760
Save 30.8%IGI | 2.62ct | Marquise | D | IF | Ideal
From $11,039
Compare at $15,952
Save 68.1%IGI | 2.62ct | Marquise | E | IF | Excellent
From $3,880
Compare at $12,173
Save 74.6%IGI | 2.62ct | Marquise | E | VVS2 | Excellent
From $1,382
Compare at $5,440
Save 74.6%IGI | 2.62ct | Marquise | E | VVS2 | Ideal
From $1,382
Compare at $5,440
Save 75.5%IGI | 2.62ct | Marquise | F | VVS2 | Very Good
From $863
Compare at $3,520
Save 81.8%IGI | 2.62ct | Marquise | D | VVS1 | Ideal
From $2,290
Compare at $12,570
Save 73.8%IGI | 2.62ct | Marquise | E | VVS1 | Ideal
From $1,969
Compare at $7,530
IGI | 2.62ct | Marquise | E | VS1 | Ideal
From $2,236
Compare at $2,240
Save 82.5%IGI | 2.62ct | Marquise | D | VVS1 | Ideal
From $1,345
Compare at $7,680
Save 75.2%IGI | 2.62ct | Marquise | D | VVS1 | Ideal
From $2,378
Compare at $9,580
Save 74.1%IGI | 2.62ct | Marquise | D | FL | Very Good
From $8,349
Compare at $32,240
Save 77.8%IGI | 2.63ct | Marquise | D | VVS1 | Ideal
From $1,758
Compare at $7,920
Save 78.5%IGI | 2.63ct | Marquise | E | IF | Very Good
From $6,788
Compare at $31,590
Save 71.5%IGI | 2.63ct | Marquise | E | VVS2 | Excellent
From $1,661
Compare at $5,820
Save 75.5%IGI | 2.63ct | Marquise | D | VS1 | Ideal
From $1,504
Compare at $6,130
Save 21.3%IGI | 2.63ct | Marquise | F | VVS2 | Very Good
From $1,501
Compare at $1,907
Save 58.1%IGI | 2.63ct | Marquise | D | VVS1 | Excellent
From $3,279
Compare at $7,833
Save 20.6%IGI | 2.63ct | Marquise | D | VVS1 | Excellent
From $6,233
Compare at $7,850
Save 80.2%IGI | 2.63ct | Marquise | E | VS1 | Very Good
From $895
Compare at $4,530
Save 75.6%IGI | 2.63ct | Marquise | E | VVS1 | Ideal
From $1,604
Compare at $6,570
Save 72.1%IGI | 2.63ct | Marquise | E | VS1 | Very Good
From $942
Compare at $3,380
Save 76.3%IGI | 2.63ct | Marquise | F | VVS2 | Very Good
From $878
Compare at $3,700
Save 74.9%IGI | 2.63ct | Marquise | E | VVS1 | Ideal
From $1,661
Compare at $6,630
Save 74.2%GCAL | 2.64ct | Marquise | D | VVS2 | Excellent
From $2,802
Compare at $10,840
Save 77.3%IGI | 2.64ct | Marquise | E | VVS1 | Ideal
From $1,496
Compare at $6,580
Save 73.5%IGI | 2.64ct | Marquise | D | VS1 | Excellent
From $1,438
Compare at $5,435
Save 62.5%IGI | 2.64ct | Marquise | D | IF | Excellent
From $8,753
Compare at $23,336
Save 70.3%IGI | 2.64ct | Marquise | E | VVS2 | Excellent
From $1,392
Compare at $4,680
Save 70.5%IGI | 2.64ct | Marquise | D | VVS1 | Ideal
From $1,736
Compare at $5,880
Save 54.9%IGI | 2.64ct | Marquise | D | IF | Very Good
From $4,605
Compare at $10,200
Save 67.3%IGI | 2.64ct | Marquise | E | VS1 | Ideal
From $1,113
Compare at $3,400
Save 75.5%IGI | 2.64ct | Marquise | D | VVS2 | Excellent
From $1,428
Compare at $5,840
Save 74.6%IGI | 2.64ct | Marquise | D | VVS1 | Ideal
From $2,424
Compare at $9,540
Save 72.6%IGI | 2.64ct | Marquise | D | VVS2 | Ideal
From $1,610
Compare at $5,869
Save 22.3%IGI | 2.65ct | Marquise | E | VVS2 | Excellent
From $3,650
Compare at $4,700
Entry pricing in this category starts around $545.
What to Know When Shopping for 2.6 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $19,354 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 $2,674 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 114 comparable stones in this segment. Prices start around $545 and go up to $19,899.
Based on the latest market data, the average asking price is about $3,303 with a median around $2,674.
The observed spread is roughly $19,354 across tracked listings, which is about 97.3% 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 $2,674, 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 $19,354 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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