3.3 Carat Marquise Lab Grown Diamond Prices Comparison
As of May 2026, 3.3 carat marquise lab grown diamonds usually range from $501 to $20,089, with an average price of $3,170.In the last month, prices for these diamonds are down 5.8%.Compare 61 verified listings across 8 retailers tracked by CaratRadar.
3.3 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 61 verified 3.3-carat marquise lab grown diamonds listed across 8 online retailers. Prices in this segment range from $501 to $20,089, with an average asking price of $3,170 and a median of $2,234.
The price spread of $19,588 (97.5% 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.
61 diamonds tracked in this segment
Price range: $501 to $20,089
Average price: $3,170
Median price: $2,234
Available across 8 retailers
Savings potential: up to 97.5%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
61
$501
$3,170
$2,234
$20,089
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 62.9%IGI | 3.38ct | Marquise | F | SI1 | Excellent
From $563
Compare at $1,517
Save 74.1%IGI | 3.37ct | Marquise | F | VS1 | Excellent
From $662
Compare at $2,560
Save 74.1%IGI | 3.39ct | Marquise | F | VS1 | Excellent
From $666
Compare at $2,575
Save 78.4%IGI | 3.36ct | Marquise | H | VS1 | Excellent
From $666
Compare at $3,090
Save 55.1%IGI | 3.32ct | Marquise | G | VS1 | Excellent
From $688
Compare at $1,534
Save 54.3%IGI | 3.32ct | Marquise | G | VS1 | Very Good
From $720
Compare at $1,576
Save 48.4%IGI | 3.33ct | Marquise | E | VS1 | Excellent
From $745
Compare at $1,445
Save 58.5%IGI | 3.31ct | Marquise | F | VVS2 | Very Good
From $753
Compare at $1,814
Save 54.3%IGI | 3.3ct | Marquise | E | VS2 | Very Good
From $779
Compare at $1,705
Save 60%IGI | 3.33ct | Marquise | E | VVS2 | Excellent
From $794
Compare at $1,987
Save 78.8%IGI | 3.35ct | Marquise | F | VS2 | Ideal
From $799
Compare at $3,770
Save 52.5%IGI | 3.39ct | Marquise | G | VS1 | Ideal
From $834
Compare at $1,754
Save 57.5%IGI | 3.32ct | Marquise | E | VVS2 | Very Good
From $847
Compare at $1,994
Save 50.6%IGI | 3.34ct | Marquise | F | VS1 | Very Good
From $873
Compare at $1,766
Save 49.8%IGI | 3.32ct | Marquise | F | VS1 | Excellent
From $877
Compare at $1,747
Save 51.2%IGI | 3.39ct | Marquise | F | VS1 | Excellent
From $886
Compare at $1,816
Save 16.4%IGI | 3.32ct | Marquise | F | VS1 | Ideal
From $929
Compare at $1,111
Save 28.8%IGI | 3.33ct | Marquise | F | VS1 | Excellent
From $979
Compare at $1,375
Save 39.7%IGI | 3.36ct | Marquise | E | VS1 | Ideal
From $989
Compare at $1,641
Save 78.1%IGI | 3.3ct | Marquise | E | VS1 | Ideal
From $1,013
Compare at $4,620
Save 36.2%IGI | 3.32ct | Marquise | E | VS1 | Very Good
From $1,184
Compare at $1,857
Save 78.3%IGI | 3.36ct | Marquise | E | VS1 | Very Good
From $1,184
Compare at $5,450
Save 71%IGI | 3.3ct | Marquise | H | VS2 | Ideal
From $1,223
Compare at $4,210
IGI | 3.38ct | Marquise | E | VVS2 | Very Good
From $1,263
Compare at $5,310
Save 31.1%IGI | 3.35ct | Marquise | E | VVS2 | Very Good
From $1,284
Compare at $1,864
Save 31.1%IGI | 3.37ct | Marquise | E | VVS2 | Very Good
From $1,291
Compare at $1,875
Save 77.1%IGI | 3.33ct | Marquise | F | VS2 | Ideal
From $1,312
Compare at $5,730
Save 69.1%IGI | 3.34ct | Marquise | F | VS1 | Very Good
From $1,321
Compare at $4,270
Save 70.6%IGI | 3.36ct | Marquise | F | VS1 | Very Good
From $1,327
Compare at $4,510
Save 72%IGI | 3.38ct | Marquise | F | VS1 | Very Good
From $1,336
Compare at $4,770
Save 72.9%IGI | 3.31ct | Marquise | FANCY | VVS2 | Very Good
From $1,453
Compare at $5,353
Save 75.5%IGI | 3.33ct | Marquise | F | VS1 | Very Good
From $1,470
Compare at $5,990
Save 76%IGI | 3.3ct | Marquise | F | VVS2 | Very Good
From $1,509
Compare at $6,280
Save 76.2%IGI | 3.35ct | Marquise | F | VVS2 | Very Good
From $1,520
Compare at $6,380
Save 73.9%IGI | 3.35ct | Marquise | F | VVS2 | Ideal
From $1,596
Compare at $6,109
Save 49.2%IGI | 3.38ct | Marquise | E | VVS1 | Ideal
From $1,615
Compare at $3,180
Save 33.5%IGI | 3.31ct | Marquise | D | VVS2 | Very Good
From $1,650
Compare at $2,483
IGI | 3.3ct | Marquise | F | VS1 | Very Good
From $1,749
Compare at $1,873
IGI | 3.32ct | Marquise | F | VS1 | Very Good
From $1,760
Compare at $1,884
Save 72.7%GIA | 3.3ct | Marquise | E | VS1 | Ideal
From $1,963
Compare at $7,180
Save 38.5%GIA | 3.32ct | Marquise | E | VS1 | Excellent
From $1,978
Compare at $3,215
Save 70.3%IGI | 3.32ct | Marquise | FANCY | VVS2 | Very Good
From $2,190
Compare at $7,383
Save 78.8%IGI | 3.36ct | Marquise | F | VVS2 | Very Good
From $2,233
Compare at $10,530
Save 76.5%IGI | 3.34ct | Marquise | D | VVS1 | Ideal
From $2,540
Compare at $10,810
Save 76.5%IGI | 3.37ct | Marquise | D | VVS1 | Ideal
From $2,565
Compare at $10,900
Save 70.7%IGI | 3.33ct | Marquise | E | VVS1 | Ideal
From $2,692
Compare at $9,200
Save 40.9%IGI | 3.32ct | Marquise | D | VVS1 | Very Good
From $3,108
Compare at $5,262
Save 34.3%GCAL | 3.31ct | Marquise | E | VVS2 | Excellent
From $3,185
Compare at $4,849
Save 34.4%GCAL | 3.35ct | Marquise | E | VVS2 | Excellent
From $3,223
Compare at $4,911
Save 34.4%GCAL | 3.33ct | Marquise | D | VVS2 | Excellent
From $3,612
Compare at $5,505
Entry pricing in this category starts around $501.
What to Know When Shopping for 3.3 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $19,588 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 $2,234 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 61 comparable stones in this segment. Prices start around $501 and go up to $20,089.
Based on the latest market data, the average asking price is about $3,170 with a median around $2,234.
The observed spread is roughly $19,588 across tracked listings, which is about 97.5% 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 $3,170. The median price is $2,234, 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 8 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 $19,588 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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