5.4 Carat Marquise Lab Grown Diamond Prices Comparison
As of February 2026, 5.4 carat marquise lab grown diamonds usually range from $966 to $37,770, with an average price of $3,183.In the last month, prices for these diamonds are down 1.8%.Compare 42 verified listings across 6 retailers tracked by CaratRadar.
5.4 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 42 verified 5.4-carat marquise lab grown diamonds listed across 6 online retailers. Prices in this segment range from $966 to $37,770, with an average asking price of $3,183 and a median of $1,507.
The price spread of $36,804 (97.4% 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.
42 diamonds tracked in this segment
Price range: $966 to $37,770
Average price: $3,183
Median price: $1,507
Available across 6 retailers
Savings potential: up to 97.4%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
42
$966
$3,183
$1,507
$37,770
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 61.2%5.35ct | Marquise | D | VVS2 | Ideal
From $6,106
Compare at $15,750
IGISave 86%5.35ct | Marquise | G | VVS2 | Excellent
From $1,492
Compare at $10,620
5.35ct | Marquise | F | VS1 | Excellent
From $1,444
Compare at $13,120
IGISave 76.8%5.35ct | Marquise | G | VS1 | Very Good
From $1,415
Compare at $6,100
5.35ct | Marquise | F | VS1 | Excellent
From $1,444
Compare at $13,170
IGISave 17%5.35ct | Marquise | E | VS1 | Very Good
From $5,731
Compare at $6,902
IGISave 44.1%5.36ct | Marquise | E | VS2 | Ideal
From $1,898
Compare at $3,397
IGISave 90%5.36ct | Marquise | F | VVS2 | Excellent
From $1,350
Compare at $13,540
IGISave 78.6%5.36ct | Marquise | F | VS1 | Ideal
From $1,526
Compare at $7,130
5.36ct | Marquise | E | VS2 | Excellent
From $1,790
Compare at $12,070
IGISave 85%5.36ct | Marquise | F | VS1 | Excellent
From $1,506
Compare at $10,010
IGISave 88.4%5.36ct | Marquise | E | VS1 | Excellent
From $1,522
Compare at $13,150
IGISave 83.1%5.36ct | Marquise | F | VVS1 | Excellent
From $5,779
Compare at $34,260
GIASave 42.3%5.36ct | Marquise | E | VVS2 | Excellent
From $4,939
Compare at $8,563
5.37ct | Marquise | E | VS2 | Excellent
From $1,794
Compare at $12,090
IGISave 76.6%5.37ct | Marquise | E | VS1 | Ideal
From $3,088
Compare at $13,170
IGISave 80.3%5.37ct | Marquise | F | VS1 | Good
From $1,478
Compare at $7,510
IGISave 83.7%5.37ct | Marquise | H | VVS2 | Excellent
From $1,443
Compare at $8,850
IGISave 50.1%5.37ct | Marquise | E | VVS1 | Excellent
From $7,503
Compare at $15,030
IGISave 55.6%5.37ct | Marquise | I | VS2 | Excellent
From $1,041
Compare at $2,344
IGISave 81.2%5.38ct | Marquise | F | VS1 | Excellent
From $1,481
Compare at $7,890
IGISave 76.5%5.38ct | Marquise | F | VS2 | Excellent
From $1,431
Compare at $6,080
IGISave 75.5%5.38ct | Marquise | F | VS2 | Very Good
From $1,398
Compare at $5,710
IGISave 53%5.38ct | Marquise | G | SI1 | Ideal
From $2,309
Compare at $4,910
IGISave 90%5.39ct | Marquise | F | VVS2 | Excellent
From $1,356
Compare at $13,610
IGISave 60.7%5.39ct | Marquise | FANCY | VVS2 | Excellent
From $6,734
Compare at $17,123
IGISave 85%5.39ct | Marquise | F | VVS2 | Excellent
From $1,536
Compare at $10,240
IGISave 87.3%5.41ct | Marquise | F | VVS2 | Excellent
From $1,541
Compare at $12,130
5.41ct | Marquise | F | VS1 | Excellent
From $1,460
Compare at $13,270
IGISave 91%5.41ct | Marquise | G | VVS2 | Ideal
From $966
Compare at $10,740
IGISave 75.2%5.41ct | Marquise | G | VS2 | Excellent
From $1,412
Compare at $5,690
IGISave 86%5.42ct | Marquise | G | VVS2 | Excellent
From $1,509
Compare at $10,760
IGISave 87.3%5.42ct | Marquise | F | VVS2 | Excellent
From $1,543
Compare at $12,150
IGISave 58.8%5.42ct | Marquise | E | VVS1 | Excellent
From $6,269
Compare at $15,220
IGISave 76.2%5.42ct | Marquise | E | VS1 | Very Good
From $1,479
Compare at $6,210
IGISave 87.5%5.43ct | Marquise | E | VVS2 | Excellent
From $1,860
Compare at $14,860
IGISave 79.3%5.43ct | Marquise | F | VS1 | Excellent
From $1,492
Compare at $7,220
IGISave 76.2%5.43ct | Marquise | F | VVS2 | Very Good
From $1,497
Compare at $6,290
IGISave 84.7%5.44ct | Marquise | F | VS2 | Excellent
From $1,444
Compare at $9,470
IGISave 85.5%5.44ct | Marquise | F | VS2 | Excellent
From $1,376
Compare at $9,470
IGISave 88.5%5.44ct | Marquise | E | VS1 | Excellent
From $1,545
Compare at $13,440
GIASave 75.1%5.44ct | Marquise | D | IF | Excellent
From $37,770
Compare at $151,860
Entry pricing in this category starts around $966.
What to Know When Shopping for 5.4 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $36,804 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 $1,507 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 42 comparable stones in this segment. Prices start around $966 and go up to $37,770.
Based on the latest market data, the average asking price is about $3,183 with a median around $1,507.
The observed spread is roughly $36,804 across tracked listings, which is about 97.4% 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 $1,507, 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 $36,804 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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