5.8 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 5.8 carat marquise lab grown diamonds usually range from $630 to $16,761, with an average price of $4,140.In the last month, prices for these diamonds are down 0.5%.Compare 36 verified listings across 3 retailers tracked by CaratRadar.
5.8 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 36 verified 5.8-carat marquise lab grown diamonds listed across 3 online retailers. Prices in this segment range from $630 to $16,761, with an average asking price of $4,140 and a median of $2,794.
The price spread of $16,131 (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.
36 diamonds tracked in this segment
Price range: $630 to $16,761
Average price: $4,140
Median price: $2,794
Available across 3 retailers
Savings potential: up to 96.2%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
36
$630
$4,140
$2,794
$16,761
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 74.8%IGI | 5.8ct | Marquise | E | VS1 | Ideal
From $1,257
Compare at $4,985
Save 81.2%IGI | 5.8ct | Marquise | F | VS1 | Ideal
From $1,363
Compare at $7,250
Save 82.6%IGI | 5.81ct | Marquise | F | VS1 | Ideal
From $2,083
Compare at $12,000
Save 74.7%IGI | 5.81ct | Marquise | E | VS1 | Ideal
From $1,419
Compare at $5,600
Save 89.1%IGI | 5.81ct | Marquise | E | VS1 | Excellent
From $1,571
Compare at $14,440
Save 75.9%IGI | 5.81ct | Marquise | F | VVS2 | Ideal
From $1,438
Compare at $5,960
Save 52.1%IGI | 5.81ct | Marquise | F | VVS2 | Excellent
From $1,878
Compare at $3,921
Save 63.4%IGI | 5.81ct | Marquise | F | VS1 | Very Good
From $3,020
Compare at $8,250
IGI | 5.82ct | Marquise | F | VS1 | Excellent
From $1,483
Compare at $7,770
Save 84%IGI | 5.82ct | Marquise | G | VVS2 | Excellent
From $1,855
Compare at $11,560
Save 88.8%IGI | 5.82ct | Marquise | E | VS2 | Ideal
From $1,279
Compare at $11,460
Save 74.7%IGI | 5.82ct | Marquise | E | VS1 | Ideal
From $1,422
Compare at $5,610
Save 75.9%IGI | 5.82ct | Marquise | F | VVS2 | Ideal
From $1,440
Compare at $5,970
Save 78.6%IGI | 5.82ct | Marquise | E | VVS2 | Ideal
From $3,071
Compare at $14,360
Save 74.7%IGI | 5.82ct | Marquise | E | VS1 | Ideal
From $1,440
Compare at $5,680
Save 75.5%IGI | 5.83ct | Marquise | F | VS1 | Very Good
From $1,442
Compare at $5,890
Save 82.4%IGI | 5.83ct | Marquise | D | VS2 | Ideal
From $2,239
Compare at $12,720
Save 74.7%IGI | 5.83ct | Marquise | E | VS1 | Ideal
From $1,424
Compare at $5,620
Save 74.6%IGI | 5.83ct | Marquise | E | VS1 | Excellent
From $2,631
Compare at $10,350
Save 74.7%IGI | 5.83ct | Marquise | E | VS1 | Ideal
From $1,424
Compare at $5,620
Save 70.2%IGI | 5.83ct | Marquise | E | VS1 | Very Good
From $2,783
Compare at $9,330
Save 77.9%IGI | 5.84ct | Marquise | G | VS2 | Very Good
From $2,352
Compare at $10,650
IGI | 5.84ct | Marquise | F | VS2 | Excellent
From $1,444
Compare at $10,310
Save 89%IGI | 5.84ct | Marquise | E | VS2 | Ideal
From $1,265
Compare at $11,500
Save 38.5%IGI | 5.84ct | Marquise | E | VVS1 | Excellent
From $5,871
Compare at $9,543
Save 82.4%IGI | 5.85ct | Marquise | D | VS2 | Ideal
From $2,246
Compare at $12,760
Save 85.5%IGI | 5.86ct | Marquise | E | VVS2 | Good
From $2,103
Compare at $14,540
Save 82.5%IGI | 5.86ct | Marquise | F | VVS2 | Excellent
From $1,962
Compare at $11,213
Save 89%IGI | 5.87ct | Marquise | E | VS2 | Ideal
From $1,272
Compare at $11,560
Save 74.6%IGI | 5.87ct | Marquise | F | VS2 | Ideal
From $2,236
Compare at $8,814
Save 45.8%IGI | 5.87ct | Marquise | D | VVS1 | Ideal
From $10,525
Compare at $19,410
IGI | 5.88ct | Marquise | F | VS2 | Excellent
From $1,454
Compare at $10,380
Save 87.8%IGI | 5.88ct | Marquise | F | VS2 | Ideal
From $1,256
Compare at $10,320
Save 68.1%IGI | 5.89ct | Marquise | D | VS1 | Ideal
From $3,051
Compare at $9,570
Save 84.9%IGI | 5.89ct | Marquise | E | VVS2 | Excellent
From $2,212
Compare at $14,620
Save 82.2%IGI | 5.89ct | Marquise | F | VS1 | Ideal
From $1,312
Compare at $7,360
Entry pricing in this category starts around $630.
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 $16,131 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 $2,794 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 36 comparable stones in this segment. Prices start around $630 and go up to $16,761.
Based on the latest market data, the average asking price is about $4,140 with a median around $2,794.
The observed spread is roughly $16,131 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 $2,794, 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 3 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 $16,131 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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