4.8 Carat Marquise Lab Grown Diamond Prices Comparison
As of February 2026, 4.8 carat marquise lab grown diamonds usually range from $830 to $5,677, with an average price of $1,584.In the last month, prices for these diamonds are down 1.6%.Compare 264 verified listings across 5 retailers tracked by CaratRadar.
4.8 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 264 verified 4.8-carat marquise lab grown diamonds listed across 5 online retailers. Prices in this segment range from $830 to $5,677, with an average asking price of $1,584 and a median of $1,327.
The price spread of $4,847 (85.4% 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.
264 diamonds tracked in this segment
Price range: $830 to $5,677
Average price: $1,584
Median price: $1,327
Available across 5 retailers
Savings potential: up to 85.4%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
264
$830
$1,584
$1,327
$5,677
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 83.1%4.75ct | Marquise | F | VS1 | Excellent
From $1,176
Compare at $6,960
IGISave 65%4.75ct | Marquise | F | VS1 | Ideal
From $1,263
Compare at $3,610
IGISave 65%4.75ct | Marquise | F | VS1 | Ideal
From $1,263
Compare at $3,610
IGISave 67.2%4.75ct | Marquise | E | VS2 | Ideal
From $1,263
Compare at $3,845
IGISave 66.4%4.75ct | Marquise | E | VS1 | Ideal
From $1,323
Compare at $3,940
IGISave 71.2%4.75ct | Marquise | F | VVS2 | Very Good
From $2,562
Compare at $8,910
IGISave 67.2%4.75ct | Marquise | E | VS2 | Ideal
From $1,263
Compare at $3,845
IGISave 66.3%4.75ct | Marquise | F | VS1 | Ideal
From $1,263
Compare at $3,750
IGISave 66.8%4.75ct | Marquise | E | VS1 | Ideal
From $1,308
Compare at $3,940
IGISave 75.5%4.75ct | Marquise | G | VS2 | Very Good
From $1,425
Compare at $5,820
IGISave 75.5%4.75ct | Marquise | G | VS2 | Very Good
From $1,425
Compare at $5,820
IGISave 50.1%4.75ct | Marquise | G | VS2 | Excellent
From $2,620
Compare at $5,250
IGISave 50.1%4.75ct | Marquise | G | VS2 | Excellent
From $2,620
Compare at $5,250
IGISave 65.9%4.75ct | Marquise | F | VS2 | Ideal
From $1,232
Compare at $3,610
IGISave 66.4%4.75ct | Marquise | E | VS1 | Ideal
From $1,323
Compare at $3,940
IGISave 65.5%4.75ct | Marquise | F | VS1 | Ideal
From $1,294
Compare at $3,750
IGISave 64%4.75ct | Marquise | F | VS2 | Ideal
From $1,247
Compare at $3,465
IGISave 50.1%4.75ct | Marquise | G | VS1 | Excellent
From $2,847
Compare at $5,710
IGISave 75.6%4.76ct | Marquise | G | SI1 | Very Good
From $1,267
Compare at $5,200
IGISave 65%4.76ct | Marquise | F | VS1 | Ideal
From $1,265
Compare at $3,615
IGISave 66.8%4.76ct | Marquise | E | VS1 | Ideal
From $1,311
Compare at $3,950
IGISave 65.5%4.76ct | Marquise | F | VS1 | Ideal
From $1,296
Compare at $3,760
IGISave 59%4.76ct | Marquise | F | VS1 | Ideal
From $2,593
Compare at $6,320
IGISave 80.3%4.76ct | Marquise | F | VVS2 | Ideal
From $2,100
Compare at $10,650
IGISave 66.8%4.76ct | Marquise | E | VS1 | Ideal
From $1,311
Compare at $3,950
IGISave 66.8%4.76ct | Marquise | E | VS1 | Ideal
From $1,311
Compare at $3,950
IGISave 69%4.76ct | Marquise | D | VS1 | Ideal
From $1,442
Compare at $4,660
IGISave 66.8%4.76ct | Marquise | E | VS1 | Ideal
From $1,311
Compare at $3,950
IGISave 67.2%4.76ct | Marquise | E | VVS2 | Ideal
From $1,653
Compare at $5,045
IGISave 66.8%4.76ct | Marquise | E | VS1 | Ideal
From $1,311
Compare at $3,950
IGISave 66.8%4.76ct | Marquise | E | VS1 | Ideal
From $1,311
Compare at $3,950
IGISave 88.7%4.76ct | Marquise | E | VVS2 | Excellent
From $1,365
Compare at $12,060
IGISave 87.7%4.76ct | Marquise | E | VS1 | Ideal
From $1,445
Compare at $11,710
IGISave 70.3%4.76ct | Marquise | F | VVS2 | Ideal
From $1,442
Compare at $4,855
IGISave 66.9%4.76ct | Marquise | E | VVS2 | Ideal
From $1,667
Compare at $5,045
IGISave 57.8%4.76ct | Marquise | FANCY | VS1 | Excellent
From $4,624
Compare at $10,963
IGISave 58%4.76ct | Marquise | F | VS1 | Very Good
From $1,640
Compare at $3,904
IGISave 70.2%4.76ct | Marquise | F | VS1 | Very Good
From $1,121
Compare at $3,760
IGISave 83.9%4.76ct | Marquise | F | VS1 | Ideal
From $1,014
Compare at $6,320
IGISave 79.2%4.76ct | Marquise | F | VVS2 | Excellent
From $2,219
Compare at $10,650
IGISave 66.9%4.76ct | Marquise | E | VVS2 | Ideal
From $1,667
Compare at $5,045
IGISave 75.5%4.77ct | Marquise | G | VS2 | Very Good
From $1,431
Compare at $5,840
IGISave 50.1%4.77ct | Marquise | G | VS1 | Excellent
From $2,859
Compare at $5,730
IGISave 65%4.77ct | Marquise | F | VS1 | Ideal
From $1,268
Compare at $3,625
IGISave 64.6%4.77ct | Marquise | F | VS1 | Ideal
From $1,284
Compare at $3,625
IGISave 67.6%4.77ct | Marquise | E | VS1 | Ideal
From $1,328
Compare at $4,100
IGISave 81.8%4.77ct | Marquise | E | VS1 | Excellent
From $1,591
Compare at $8,720
IGISave 56.5%4.77ct | Marquise | G | VS1 | Ideal
From $2,362
Compare at $5,430
IGISave 68.3%4.77ct | Marquise | E | VS1 | Ideal
From $1,299
Compare at $4,100
IGISave 57.5%4.77ct | Marquise | F | VS1 | Very Good
From $1,799
Compare at $4,236
Entry pricing in this category starts around $830.
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 $4,847 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 $1,327 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 264 comparable stones in this segment. Prices start around $830 and go up to $5,677.
Based on the latest market data, the average asking price is about $1,584 with a median around $1,327.
The observed spread is roughly $4,847 across tracked listings, which is about 85.4% 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 $1,327, 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 5 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 $4,847 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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