8 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 8 carat marquise lab grown diamonds usually range from $765 to $22,208, with an average price of $5,210.In the last month, prices for these diamonds are down 0.7%.Compare 247 verified listings across 6 retailers tracked by CaratRadar.
8 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 247 verified 8-carat marquise lab grown diamonds listed across 6 online retailers. Prices in this segment range from $765 to $22,208, with an average asking price of $5,210 and a median of $3,719.
The price spread of $21,443 (96.6% 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.
247 diamonds tracked in this segment
Price range: $765 to $22,208
Average price: $5,210
Median price: $3,719
Available across 6 retailers
Savings potential: up to 96.6%
Price Range Overview
As of Apr 15, 2026Real market range for this carat, shape, and diamond type.
247
$765
$5,210
$3,719
$22,208
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 66.1%GIA | 8ct | Marquise | F | VS1 | Excellent
From $5,652
Compare at $16,690
Save 88%IGI | 8ct | Marquise | E | VS1 | Excellent
From $2,381
Compare at $19,890
Save 74.5%IGI | 8ct | Marquise | G | VS2 | Ideal
From $2,162
Compare at $8,470
Save 80.8%IGI | 8ct | Marquise | F | VS2 | Excellent
From $2,262
Compare at $11,810
Save 84.5%IGI | 8ct | Marquise | G | VS1 | Ideal
From $2,193
Compare at $14,190
Save 52.1%IGI | 8ct | Marquise | G | VS2 | Ideal
From $1,868
Compare at $3,900
Save 75.4%IGI | 8ct | Marquise | F | VS1 | Ideal
From $4,062
Compare at $16,520
Save 41.9%IGI | 8ct | Marquise | F | VS1 | Ideal
From $2,233
Compare at $3,845
Save 88.8%IGI | 8ct | Marquise | E | VS2 | Ideal
From $1,766
Compare at $15,820
Save 75.9%IGI | 8ct | Marquise | E | VS2 | Ideal
From $1,812
Compare at $7,520
Save 75.9%IGI | 8ct | Marquise | G | VS1 | Ideal
From $1,649
Compare at $6,840
Save 77.2%IGI | 8ct | Marquise | F | VS1 | Ideal
From $1,850
Compare at $8,110
Save 77.2%IGI | 8ct | Marquise | F | VS1 | Ideal
From $1,850
Compare at $8,110
Save 77.2%IGI | 8ct | Marquise | F | VS1 | Ideal
From $1,850
Compare at $8,110
Save 77.6%IGI | 8ct | Marquise | F | VS1 | Excellent
From $1,901
Compare at $8,480
Save 87.7%IGI | 8ct | Marquise | F | VS2 | Ideal
From $1,742
Compare at $14,110
Save 75.9%IGI | 8ct | Marquise | E | VS2 | Ideal
From $1,859
Compare at $7,720
Save 77.7%IGI | 8ct | Marquise | F | VS1 | Ideal
From $1,850
Compare at $8,290
Save 83.1%IGI | 8ct | Marquise | H | VVS2 | Very Good
From $2,254
Compare at $13,320
Save 89.8%IGI | 8ct | Marquise | F | VVS2 | Very Good
From $1,853
Compare at $18,100
Save 63.9%IGI | 8ct | Marquise | F | VVS2 | Excellent
From $1,675
Compare at $4,642
Save 81.5%IGI | 8.01ct | Marquise | G | VS2 | Ideal
From $1,939
Compare at $10,470
Save 69.8%IGI | 8.01ct | Marquise | G | VS2 | Ideal
From $3,168
Compare at $10,490
Save 84.6%IGI | 8.01ct | Marquise | G | VS1 | Ideal
From $2,195
Compare at $14,210
Save 74.9%IGI | 8.01ct | Marquise | F | VS2 | Ideal
From $3,562
Compare at $14,170
Save 41.1%IGI | 8.01ct | Marquise | F | VS1 | Very Good
From $2,771
Compare at $4,701
Save 86.9%IGI | 8.01ct | Marquise | G | VS1 | Ideal
From $1,864
Compare at $14,200
Save 83.5%IGI | 8.01ct | Marquise | F | VVS2 | Very Good
From $2,052
Compare at $12,430
Save 86.9%IGI | 8.01ct | Marquise | G | VS1 | Ideal
From $1,864
Compare at $14,200
Save 54%IGI | 8.01ct | Marquise | G | VS1 | Excellent
From $2,609
Compare at $5,678
Save 89%IGI | 8.01ct | Marquise | E | VS2 | Ideal
From $1,744
Compare at $15,840
Save 75.7%IGI | 8.01ct | Marquise | E | VVS2 | Excellent
From $4,664
Compare at $19,170
Save 71.5%IGI | 8.01ct | Marquise | F | VVS2 | Ideal
From $2,566
Compare at $8,990
Save 76.8%IGI | 8.01ct | Marquise | F | VVS2 | Ideal
From $1,948
Compare at $8,410
Save 89.3%IGI | 8.01ct | Marquise | E | VVS2 | Ideal
From $2,148
Compare at $20,070
Save 77.1%IGI | 8.01ct | Marquise | F | VVS2 | Ideal
From $1,948
Compare at $8,510
Save 77.1%IGI | 8.01ct | Marquise | F | VVS2 | Ideal
From $1,948
Compare at $8,510
Save 77.1%IGI | 8.01ct | Marquise | F | VVS2 | Ideal
From $1,948
Compare at $8,510
Save 77.1%IGI | 8.01ct | Marquise | F | VVS2 | Ideal
From $1,948
Compare at $8,510
Save 87.5%IGI | 8.01ct | Marquise | F | VS2 | Ideal
From $1,768
Compare at $14,120
Save 88%IGI | 8.01ct | Marquise | G | VS1 | Ideal
From $1,697
Compare at $14,120
Save 77.1%IGI | 8.01ct | Marquise | F | VS1 | Ideal
From $1,882
Compare at $8,220
Save 77.1%IGI | 8.01ct | Marquise | F | VS1 | Excellent
From $1,882
Compare at $8,220
Save 77.1%IGI | 8.01ct | Marquise | F | VS1 | Ideal
From $1,882
Compare at $8,220
Save 77.1%IGI | 8.01ct | Marquise | F | VS1 | Excellent
From $1,882
Compare at $8,220
Save 77.1%IGI | 8.01ct | Marquise | F | VS1 | Ideal
From $1,882
Compare at $8,220
Save 89.8%IGI | 8.01ct | Marquise | F | VVS2 | Very Good
From $1,846
Compare at $18,110
Save 83.2%IGI | 8.01ct | Marquise | F | VVS2 | Very Good
From $1,855
Compare at $11,050
Save 89.9%IGI | 8.01ct | Marquise | F | VS1 | Very Good
From $1,675
Compare at $16,580
Save 31.6%GIA | 8.02ct | Marquise | E | VVS2 | Very Good
From $35,288
Compare at $51,610
Entry pricing in this category starts around $765.
What to Know When Shopping for 8 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $21,443 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 $3,719 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 247 comparable stones in this segment. Prices start around $765 and go up to $22,208.
Based on the latest market data, the average asking price is about $5,210 with a median around $3,719.
The observed spread is roughly $21,443 across tracked listings, which is about 96.6% 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 $3,719, 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 $21,443 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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