10.2 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 10.2 carat marquise lab grown diamonds usually range from $1,870 to $35,168, with an average price of $8,874.In the last month, prices for these diamonds are down 1.4%.Compare 31 verified listings across 6 retailers tracked by CaratRadar.
10.2 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 31 verified 10.2-carat marquise lab grown diamonds listed across 6 online retailers. Prices in this segment range from $1,870 to $35,168, with an average asking price of $8,874 and a median of $5,730.
The price spread of $33,298 (94.7% 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: $1,870 to $35,168
Average price: $8,874
Median price: $5,730
Available across 6 retailers
Savings potential: up to 94.7%
Price Range Overview
As of Apr 18, 2026Real market range for this carat, shape, and diamond type.
31
$1,870
$8,874
$5,730
$35,168
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 75.7%IGI | 10.2ct | Marquise | F | VVS2 | Ideal
From $5,598
Compare at $23,030
Save 77.2%IGI | 10.2ct | Marquise | E | VVS2 | Ideal
From $4,987
Compare at $21,918
Save 84.3%IGI | 10.21ct | Marquise | F | VVS2 | Excellent
From $3,612
Compare at $23,000
Save 78.1%IGI | 10.21ct | Marquise | E | VVS2 | Excellent
From $5,603
Compare at $25,630
Save 88.1%IGI | 10.21ct | Marquise | F | VVS2 | Ideal
From $2,757
Compare at $23,100
Save 87.1%IGI | 10.21ct | Marquise | E | VVS2 | Ideal
From $3,315
Compare at $25,700
Save 78.1%IGI | 10.21ct | Marquise | F | VVS2 | Ideal
From $2,816
Compare at $12,860
Save 49.2%IGI | 10.21ct | Marquise | F | VS2 | Ideal
From $9,185
Compare at $18,090
Save 87.3%IGI | 10.22ct | Marquise | G | VVS2 | Ideal
From $2,595
Compare at $20,510
Save 77.3%IGI | 10.22ct | Marquise | E | VVS2 | Ideal
From $4,996
Compare at $21,961
Save 67.6%IGI | 10.23ct | Marquise | F | VVS2 | Very Good
From $4,011
Compare at $12,375
Save 68.9%IGI | 10.24ct | Marquise | F | VVS2 | Ideal
From $4,015
Compare at $12,900
Save 46.5%IGI | 10.24ct | Marquise | F | VVS2 | Excellent
From $12,390
Compare at $23,170
Save 85.6%IGI | 10.24ct | Marquise | F | VS2 | Ideal
From $2,612
Compare at $18,150
Save 50.4%IGI | 10.25ct | Marquise | F | VS1 | Ideal
From $4,908
Compare at $9,900
Save 46.5%IGI | 10.26ct | Marquise | F | VVS2 | Ideal
From $12,410
Compare at $23,210
Save 75.7%IGI | 10.26ct | Marquise | F | VVS2 | Excellent
From $5,631
Compare at $23,160
Save 86.3%IGI | 10.26ct | Marquise | F | VS1 | Ideal
From $2,901
Compare at $21,210
Save 82.4%IGI | 10.26ct | Marquise | E | VVS2 | Ideal
From $4,543
Compare at $25,820
Save 57.3%IGI | 10.27ct | Marquise | E | VS1 | Ideal
From $10,934
Compare at $25,580
Save 75.7%IGI | 10.27ct | Marquise | F | VVS2 | Excellent
From $5,636
Compare at $23,180
Save 67.6%IGI | 10.27ct | Marquise | F | VVS2 | Very Good
From $4,026
Compare at $12,425
Save 42%IGI | 10.27ct | Marquise | E | VVS2 | Ideal
From $14,990
Compare at $25,850
Save 49.6%IGI | 10.27ct | Marquise | F | VS2 | Ideal
From $9,130
Compare at $18,110
Save 80.4%IGI | 10.28ct | Marquise | F | VVS2 | Ideal
From $4,562
Compare at $23,260
Save 51.6%IGI | 10.28ct | Marquise | F | VS1 | Ideal
From $10,280
Compare at $21,240
Save 88.1%IGI | 10.29ct | Marquise | F | VVS2 | Ideal
From $2,773
Compare at $23,290
Save 87.3%IGI | 10.3ct | Marquise | E | VVS2 | Excellent
From $3,285
Compare at $25,920
Save 67.6%IGI | 10.3ct | Marquise | F | VVS2 | Excellent
From $4,038
Compare at $12,460
Save 68.9%IGI | 10.3ct | Marquise | F | VVS2 | Ideal
From $4,038
Compare at $12,975
Save 67.6%IGI | 10.3ct | Marquise | F | VVS2 | Excellent
From $4,038
Compare at $12,460
Entry pricing in this category starts around $1,870.
What to Know When Shopping for 10.2 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $33,298 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 $5,730 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 $1,870 and go up to $35,168.
Based on the latest market data, the average asking price is about $8,874 with a median around $5,730.
The observed spread is roughly $33,298 across tracked listings, which is about 94.7% 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 $5,730, 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 $33,298 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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