5.8 Carat Marquise Lab Grown Diamond Prices Comparison
As of February 2026, 5.8 carat marquise lab grown diamonds usually range from $908 to $4,864, with an average price of $1,647.In the last month, prices for these diamonds are down 2.3%.Compare 56 verified listings across 4 retailers tracked by CaratRadar.
5.8 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 56 verified 5.8-carat marquise lab grown diamonds listed across 4 online retailers. Prices in this segment range from $908 to $4,864, with an average asking price of $1,647 and a median of $1,349.
The price spread of $3,956 (81.3% 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.
56 diamonds tracked in this segment
Price range: $908 to $4,864
Average price: $1,647
Median price: $1,349
Available across 4 retailers
Savings potential: up to 81.3%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
56
$908
$1,647
$1,349
$4,864
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 84.2%5.75ct | Marquise | E | VVS2 | Ideal
From $2,240
Compare at $14,180
IGISave 70.2%5.75ct | Marquise | F | VS2 | Ideal
From $1,302
Compare at $4,370
IGISave 72%5.75ct | Marquise | E | VS2 | Ideal
From $1,302
Compare at $4,655
IGISave 72.8%5.75ct | Marquise | E | VS1 | Ideal
From $1,299
Compare at $4,770
IGISave 77.1%5.76ct | Marquise | G | VS1 | Excellent
From $1,507
Compare at $6,570
IGISave 72.8%5.76ct | Marquise | E | VS1 | Ideal
From $1,301
Compare at $4,780
IGISave 81.4%5.76ct | Marquise | D | VVS2 | Very Good
From $2,294
Compare at $12,330
IGISave 42.4%5.76ct | Marquise | G | VS2 | Excellent
From $2,162
Compare at $3,754
IGISave 72%5.76ct | Marquise | E | VS2 | Ideal
From $1,304
Compare at $4,665
IGISave 87.4%5.76ct | Marquise | F | VS1 | Ideal
From $1,731
Compare at $13,690
IGISave 92.3%5.76ct | Marquise | E | VS1 | Ideal
From $1,096
Compare at $14,300
IGISave 76.3%5.78ct | Marquise | F | SI1 | Ideal
From $2,197
Compare at $9,270
IGISave 71%5.78ct | Marquise | E | VS2 | Ideal
From $1,309
Compare at $4,505
IGISave 72.2%5.78ct | Marquise | E | VVS2 | Very Good
From $3,200
Compare at $11,530
IGISave 73.7%5.78ct | Marquise | E | VS1 | Ideal
From $1,306
Compare at $4,970
IGISave 71.5%5.78ct | Marquise | F | VS2 | Ideal
From $1,252
Compare at $4,390
IGISave 84%5.78ct | Marquise | G | VS2 | Ideal
From $970
Compare at $6,080
IGISave 78.2%5.79ct | Marquise | G | VS1 | Excellent
From $1,514
Compare at $6,950
IGISave 92.3%5.79ct | Marquise | E | VS1 | Ideal
From $1,105
Compare at $14,370
IGISave 71.8%5.79ct | Marquise | E | VS2 | Ideal
From $1,273
Compare at $4,515
IGISave 81%5.79ct | Marquise | G | VS1 | Very Good
From $1,923
Compare at $10,110
IGISave 79.2%5.79ct | Marquise | G | VS1 | Excellent
From $1,514
Compare at $7,290
IGISave 86.9%5.79ct | Marquise | D | VS1 | Ideal
From $1,938
Compare at $14,740
IGISave 86.1%5.79ct | Marquise | F | VS1 | Ideal
From $1,077
Compare at $7,720
IGISave 91.1%5.79ct | Marquise | F | VS2 | Ideal
From $908
Compare at $10,160
IGISave 71%5.79ct | Marquise | E | VS2 | Ideal
From $1,311
Compare at $4,515
IGISave 71.5%5.8ct | Marquise | F | VS2 | Ideal
From $1,257
Compare at $4,405
IGISave 73.4%5.8ct | Marquise | E | VS1 | Ideal
From $1,328
Compare at $4,985
IGISave 81.3%5.8ct | Marquise | E | VS1 | Very Good
From $2,113
Compare at $11,270
IGISave 71.5%5.8ct | Marquise | F | VS1 | Ideal
From $1,257
Compare at $4,405
IGISave 48.6%5.8ct | Marquise | E | VS1 | Ideal
From $2,145
Compare at $4,175
IGISave 77.2%5.81ct | Marquise | F | VVS2 | Ideal
From $1,348
Compare at $5,925
IGISave 71.5%5.81ct | Marquise | F | VS1 | Ideal
From $1,259
Compare at $4,415
IGISave 91.7%5.81ct | Marquise | E | VS1 | Excellent
From $1,297
Compare at $15,700
IGISave 67%5.81ct | Marquise | F | VVS2 | Excellent
From $1,878
Compare at $5,690
IGISave 71.5%5.81ct | Marquise | F | VS1 | Very Good
From $2,435
Compare at $8,540
IGISave 72.4%5.81ct | Marquise | E | VS1 | Ideal
From $1,330
Compare at $4,820
IGISave 85.2%5.82ct | Marquise | G | VVS2 | Excellent
From $1,709
Compare at $11,560
IGISave 92%5.82ct | Marquise | E | VS2 | Ideal
From $921
Compare at $11,460
IGISave 72%5.82ct | Marquise | E | VS1 | Ideal
From $1,350
Compare at $4,830
5.82ct | Marquise | F | VS1 | Excellent
From $1,472
Compare at $13,530
IGISave 88.2%5.82ct | Marquise | D | VVS2 | Ideal
From $2,009
Compare at $17,080
IGISave 72.8%5.82ct | Marquise | E | VS1 | Ideal
From $1,314
Compare at $4,830
IGISave 72.6%5.82ct | Marquise | F | VS1 | Ideal
From $1,261
Compare at $4,595
IGISave 77.2%5.82ct | Marquise | F | VVS2 | Ideal
From $1,350
Compare at $5,935
IGISave 78.6%5.82ct | Marquise | E | VVS2 | Ideal
From $3,071
Compare at $14,360
IGISave 81.3%5.83ct | Marquise | E | VS1 | Very Good
From $2,122
Compare at $11,330
IGISave 87.7%5.83ct | Marquise | D | VS2 | Ideal
From $1,552
Compare at $12,600
IGISave 73.4%5.83ct | Marquise | E | VS1 | Ideal
From $1,335
Compare at $5,010
IGISave 72.4%5.83ct | Marquise | E | VS1 | Ideal
From $1,335
Compare at $4,835
Entry pricing in this category starts around $908.
What to Know When Shopping for 5.8 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $3,956 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 $1,349 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 56 comparable stones in this segment. Prices start around $908 and go up to $4,864.
Based on the latest market data, the average asking price is about $1,647 with a median around $1,349.
The observed spread is roughly $3,956 across tracked listings, which is about 81.3% 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 $1,349, 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 4 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 $3,956 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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