3 Carat Marquise Lab Grown Diamond Prices Comparison
As of February 2026, 3 carat marquise lab grown diamonds usually range from $636 to $16,745, with an average price of $1,179.In the last month, prices for these diamonds are down 1.4%.Compare 6,817 verified listings across 13 retailers tracked by CaratRadar.
3 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 6,817 verified 3-carat marquise lab grown diamonds listed across 13 online retailers. Prices in this segment range from $636 to $16,745, with an average asking price of $1,179 and a median of $1,075.
The price spread of $16,109 (96.2% 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.
6,817 diamonds tracked in this segment
Price range: $636 to $16,745
Average price: $1,179
Median price: $1,075
Available across 13 retailers
Savings potential: up to 96.2%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
6,817
$636
$1,179
$1,075
$16,745
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 83.5%2.96ct | Marquise | E | VS2 | Excellent
From $930
Compare at $5,650
IGISave 65.2%2.96ct | Marquise | D | VS2 | Ideal
From $1,039
Compare at $2,985
IGISave 79.8%2.96ct | Marquise | F | VS1 | Excellent
From $888
Compare at $4,400
IGISave 84.1%2.96ct | Marquise | F | VS1 | Excellent
From $888
Compare at $5,590
IGISave 85.2%2.96ct | Marquise | F | VVS2 | Excellent
From $909
Compare at $6,160
IGISave 84.2%2.96ct | Marquise | E | VVS2 | Ideal
From $1,116
Compare at $7,080
IGISave 77.7%2.96ct | Marquise | D | VVS1 | Excellent
From $2,158
Compare at $9,660
IGISave 76.4%2.96ct | Marquise | F | VS1 | Very Good
From $867
Compare at $3,680
IGISave 87.2%2.96ct | Marquise | E | VS1 | Excellent
From $815
Compare at $6,350
IGISave 87.2%2.96ct | Marquise | E | VS1 | Ideal
From $815
Compare at $6,350
IGISave 81.4%2.96ct | Marquise | G | VS1 | Ideal
From $683
Compare at $3,680
IGISave 79.8%2.96ct | Marquise | E | VS1 | Very Good
From $971
Compare at $4,800
IGISave 84.2%2.96ct | Marquise | E | VS1 | Ideal
From $1,116
Compare at $7,070
IGISave 84.2%2.96ct | Marquise | E | VS1 | Ideal
From $1,116
Compare at $7,070
IGISave 84.2%2.96ct | Marquise | E | VS1 | Ideal
From $1,116
Compare at $7,070
IGISave 60.4%2.96ct | Marquise | F | VS1 | Excellent
From $890
Compare at $2,245
IGISave 76.2%2.96ct | Marquise | E | VS1 | Excellent
From $1,464
Compare at $6,160
IGISave 80.6%2.96ct | Marquise | F | VS1 | Excellent
From $888
Compare at $4,580
2.96ct | Marquise | F | VS1 | Excellent
From $878
Compare at $3,860
IGISave 80.6%2.96ct | Marquise | F | VS1 | Ideal
From $785
Compare at $4,040
IGISave 63%2.96ct | Marquise | G | VVS2 | Very Good
From $746
Compare at $2,014
IGISave 14.8%2.96ct | Marquise | G | VVS2 | Excellent
From $867
Compare at $1,017
IGISave 66.7%2.96ct | Marquise | E | VVS2 | Excellent
From $1,044
Compare at $3,135
IGISave 83.9%2.96ct | Marquise | F | VS1 | Excellent
From $898
Compare at $5,590
IGISave 81.8%2.96ct | Marquise | D | VVS2 | Excellent
From $991
Compare at $5,430
IGISave 62.4%2.96ct | Marquise | F | VS1 | Ideal
From $878
Compare at $2,335
IGISave 87.3%2.96ct | Marquise | E | VS1 | Excellent
From $809
Compare at $6,350
IGISave 87.8%2.96ct | Marquise | E | VVS2 | Very Good
From $868
Compare at $7,110
IGISave 26.6%2.96ct | Marquise | D | VVS2 | Ideal
From $6,020
Compare at $8,200
IGISave 61.9%2.96ct | Marquise | E | VS1 | Excellent
From $936
Compare at $2,455
IGISave 87.1%2.96ct | Marquise | F | VVS2 | Ideal
From $797
Compare at $6,190
IGISave 60.1%2.96ct | Marquise | E | VS2 | Ideal
From $957
Compare at $2,395
IGISave 83%2.96ct | Marquise | D | VS2 | Excellent
From $1,002
Compare at $5,880
IGISave 84.6%2.96ct | Marquise | E | VS1 | Excellent
From $971
Compare at $6,320
IGISave 83.6%2.96ct | Marquise | E | VS2 | Excellent
From $930
Compare at $5,680
IGISave 83.8%2.96ct | Marquise | F | VS1 | Excellent
From $898
Compare at $5,560
IGISave 66.7%2.96ct | Marquise | E | VVS2 | Excellent
From $1,044
Compare at $3,135
IGISave 84%2.96ct | Marquise | D | VS1 | Excellent
From $1,106
Compare at $6,915
IGISave 76.2%2.96ct | Marquise | F | VS1 | Ideal
From $1,544
Compare at $6,480
IGISave 84.4%2.96ct | Marquise | G | VVS2 | Ideal
From $844
Compare at $5,400
IGISave 84.2%2.96ct | Marquise | E | VS1 | Ideal
From $1,116
Compare at $7,070
IGISave 62.5%2.96ct | Marquise | E | VS2 | Ideal
From $898
Compare at $2,395
IGISave 85.1%2.96ct | Marquise | E | VVS2 | Excellent
From $1,186
Compare at $7,980
IGISave 76.3%2.96ct | Marquise | D | VVS1 | Ideal
From $2,271
Compare at $9,580
IGISave 68.1%2.96ct | Marquise | E | VVS2 | Ideal
From $1,643
Compare at $5,150
IGISave 81%2.97ct | Marquise | G | VS2 | Very Good
From $881
Compare at $4,630
IGISave 83.7%2.97ct | Marquise | F | VS1 | Very Good
From $912
Compare at $5,580
IGISave 14.8%2.97ct | Marquise | H | VVS2 | Excellent
From $789
Compare at $926
IGISave 14.8%2.97ct | Marquise | G | VVS2 | Very Good
From $893
Compare at $1,048
IGISave 82.3%2.97ct | Marquise | G | VS1 | Very Good
From $847
Compare at $4,790
Entry pricing in this category starts around $636.
What to Know When Shopping for 3 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $16,109 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 $1,075 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 6,817 comparable stones in this segment. Prices start around $636 and go up to $16,745.
Based on the latest market data, the average asking price is about $1,179 with a median around $1,075.
The observed spread is roughly $16,109 across tracked listings, which is about 96.2% 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 $1,075, 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 13 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 $16,109 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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