4.8 Carat Marquise Lab Grown Diamond Prices Comparison
As of April 2026, 4.8 carat marquise lab grown diamonds usually range from $620 to $16,193, with an average price of $3,731.In the last month, prices for these diamonds are up 0.4%.Compare 267 verified listings across 7 retailers tracked by CaratRadar.
4.8 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 267 verified 4.8-carat marquise lab grown diamonds listed across 7 online retailers. Prices in this segment range from $620 to $16,193, with an average asking price of $3,731 and a median of $2,760.
The price spread of $15,573 (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.
267 diamonds tracked in this segment
Price range: $620 to $16,193
Average price: $3,731
Median price: $2,760
Available across 7 retailers
Savings potential: up to 96.2%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
267
$620
$3,731
$2,760
$16,193
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 50.2%IGI | 4.8ct | Marquise | G | VS1 | Excellent
From $2,790
Compare at $5,600
Save 40.2%IGI | 4.8ct | Marquise | I | VVS2 | Ideal
From $1,055
Compare at $1,763
Save 86.1%IGI | 4.8ct | Marquise | F | VS2 | Ideal
From $1,167
Compare at $8,380
Save 81%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $2,252
Compare at $11,870
Save 77.1%IGI | 4.8ct | Marquise | E | VVS2 | Ideal
From $2,239
Compare at $9,780
Save 71.5%IGI | 4.8ct | Marquise | D | VS1 | Ideal
From $2,549
Compare at $8,930
Save 69.6%IGI | 4.8ct | Marquise | F | VS1 | Ideal
From $1,151
Compare at $3,790
Save 68.7%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $1,291
Compare at $4,125
Save 72.6%IGI | 4.8ct | Marquise | D | VS2 | Ideal
From $1,277
Compare at $4,655
Save 68.7%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $1,291
Compare at $4,125
Save 74.8%IGI | 4.8ct | Marquise | E | VVS2 | Ideal
From $2,961
Compare at $11,730
Save 67.6%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $1,291
Compare at $3,980
Save 68.7%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $1,291
Compare at $4,125
Save 87.2%IGI | 4.8ct | Marquise | E | VS2 | Ideal
From $1,213
Compare at $9,480
Save 76.1%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $1,654
Compare at $6,930
Save 68.7%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $1,291
Compare at $4,125
Save 69.2%IGI | 4.8ct | Marquise | E | VS2 | Ideal
From $1,198
Compare at $3,885
Save 72.6%IGI | 4.8ct | Marquise | D | VS2 | Ideal
From $1,277
Compare at $4,655
Save 68%IGI | 4.8ct | Marquise | F | VS1 | Ideal
From $1,213
Compare at $3,790
Save 65.8%IGI | 4.8ct | Marquise | F | VS2 | Ideal
From $1,198
Compare at $3,500
Save 89%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $1,291
Compare at $11,780
Save 68%IGI | 4.8ct | Marquise | F | VS1 | Ideal
From $1,213
Compare at $3,790
Save 68.8%IGI | 4.8ct | Marquise | E | VS2 | Ideal
From $1,213
Compare at $3,885
Save 68.7%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $1,291
Compare at $4,125
Save 68.7%IGI | 4.8ct | Marquise | E | VS1 | Ideal
From $1,291
Compare at $4,125
Save 79.8%IGI | 4.8ct | Marquise | F | VS1 | Ideal
From $1,213
Compare at $6,010
Save 86.8%IGI | 4.8ct | Marquise | F | VVS2 | Ideal
From $1,428
Compare at $10,800
Save 83.4%IGI | 4.8ct | Marquise | F | VVS2 | Ideal
From $1,796
Compare at $10,840
Save 85.7%IGI | 4.8ct | Marquise | F | VVS2 | Excellent
From $1,550
Compare at $10,870
Save 75.5%IGI | 4.81ct | Marquise | G | VS1 | Very Good
From $1,428
Compare at $5,830
Save 50.2%IGI | 4.81ct | Marquise | G | VS1 | Excellent
From $2,796
Compare at $5,610
Save 71.4%IGI | 4.81ct | Marquise | F | VS1 | Ideal
From $2,031
Compare at $7,110
Save 69.2%IGI | 4.81ct | Marquise | E | VS2 | Ideal
From $1,200
Compare at $3,895
Save 67.2%IGI | 4.81ct | Marquise | F | VS1 | Ideal
From $1,200
Compare at $3,655
Save 68.8%IGI | 4.81ct | Marquise | F | VS1 | Ideal
From $1,185
Compare at $3,795
Save 70%IGI | 4.81ct | Marquise | E | VVS2 | Ideal
From $1,586
Compare at $5,290
Save 68.7%IGI | 4.81ct | Marquise | E | VS1 | Ideal
From $1,294
Compare at $4,135
Save 67.6%IGI | 4.81ct | Marquise | E | VS1 | Ideal
From $1,294
Compare at $3,990
Save 67.6%IGI | 4.81ct | Marquise | E | VS1 | Ideal
From $1,294
Compare at $3,990
Save 67.6%IGI | 4.81ct | Marquise | E | VS1 | Ideal
From $1,294
Compare at $3,990
Save 68.9%IGI | 4.81ct | Marquise | E | VVS2 | Ideal
From $1,586
Compare at $5,095
Save 68%IGI | 4.81ct | Marquise | E | VS2 | Ideal
From $1,200
Compare at $3,750
Save 81%IGI | 4.81ct | Marquise | E | VS1 | Excellent
From $2,257
Compare at $11,900
Save 67.6%IGI | 4.81ct | Marquise | E | VS1 | Ideal
From $1,294
Compare at $3,990
Save 69.2%IGI | 4.81ct | Marquise | E | VS2 | Ideal
From $1,200
Compare at $3,895
Save 68.4%IGI | 4.81ct | Marquise | F | VS1 | Ideal
From $1,200
Compare at $3,795
Save 68%IGI | 4.81ct | Marquise | F | VS1 | Ideal
From $1,216
Compare at $3,795
Save 65.8%IGI | 4.81ct | Marquise | F | VS2 | Ideal
From $1,200
Compare at $3,510
Save 71.3%IGI | 4.81ct | Marquise | F | VVS2 | Ideal
From $1,354
Compare at $4,710
Save 69.7%IGI | 4.81ct | Marquise | E | VVS2 | Ideal
From $1,600
Compare at $5,290
Entry pricing in this category starts around $620.
What to Know When Shopping for 4.8 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $15,573 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 $2,760 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 267 comparable stones in this segment. Prices start around $620 and go up to $16,193.
Based on the latest market data, the average asking price is about $3,731 with a median around $2,760.
The observed spread is roughly $15,573 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 $2,760, 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 7 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 $15,573 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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