4.8 Carat Round Lab Grown Diamond Prices Comparison
As of February 2026, 4.8 carat round lab grown diamonds usually range from $689 to $44,980, with an average price of $1,903.In the last month, prices for these diamonds are down 3.1%.Compare 700 verified listings across 9 retailers tracked by CaratRadar.
4.8 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 700 verified 4.8-carat round lab grown diamonds listed across 9 online retailers. Prices in this segment range from $689 to $44,980, with an average asking price of $1,903 and a median of $1,256.
The price spread of $44,291 (98.5% 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.
700 diamonds tracked in this segment
Price range: $689 to $44,980
Average price: $1,903
Median price: $1,256
Available across 9 retailers
Savings potential: up to 98.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
700
$689
$1,903
$1,256
$44,980
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 64.7%4.75ct | Round | E | VVS2 | Ideal
From $1,454
Compare at $4,120
IGISave 65.1%4.75ct | Round | F | VS1 | Excellent
From $1,259
Compare at $3,610
IGISave 68.5%4.75ct | Round | E | VS1 | Ideal
From $1,287
Compare at $4,085
IGISave 47.1%4.75ct | Round | H | VS2 | Ideal
From $1,666
Compare at $3,151
IGISave 72.3%4.75ct | Round | F | VS2 | Ideal
From $2,718
Compare at $9,810
IGISave 90%4.75ct | Round | F | VS1 | Ideal
From $1,087
Compare at $10,890
IGISave 90%4.75ct | Round | G | VS2 | Ideal
From $729
Compare at $7,290
IGISave 72.9%4.75ct | Round | I | VVS2 | Ideal
From $1,110
Compare at $4,100
IGISave 82.9%4.75ct | Round | E | VS1 | Ideal
From $1,004
Compare at $5,880
IGISave 85%4.75ct | Round | E | VS2 | Excellent
From $1,646
Compare at $10,970
IGISave 65.5%4.75ct | Round | E | VS1 | Excellent
From $1,176
Compare at $3,406
IGISave 91%4.75ct | Round | E | VS2 | Ideal
From $943
Compare at $10,490
IGISave 89%4.75ct | Round | F | VVS2 | Excellent
From $1,338
Compare at $12,130
IGISave 87.7%4.75ct | Round | E | VVS2 | Ideal
From $1,660
Compare at $13,450
IGISave 75.6%4.75ct | Round | D | VVS1 | Ideal
From $12,356
Compare at $50,702
IGISave 87.6%4.75ct | Round | E | VVS2 | Ideal
From $1,454
Compare at $11,730
IGISave 71.8%4.75ct | Round | E | VS1 | Excellent
From $1,110
Compare at $3,940
IGISave 91.5%4.75ct | Round | E | VVS2 | Ideal
From $1,443
Compare at $17,000
IGISave 69.7%4.75ct | Round | F | VS1 | Excellent
From $3,301
Compare at $10,880
IGISave 40.5%4.75ct | Round | G | VS1 | Good
From $2,124
Compare at $3,569
IGISave 55.5%4.75ct | Round | F | SI2 | Excellent
From $982
Compare at $2,206
IGISave 82%4.75ct | Round | H | VVS2 | Ideal
From $768
Compare at $4,260
IGISave 81.2%4.75ct | Round | G | VS2 | Ideal
From $782
Compare at $4,150
IGISave 81.5%4.75ct | Round | H | VS1 | Ideal
From $714
Compare at $3,860
IGISave 81.6%4.75ct | Round | F | SI1 | Ideal
From $722
Compare at $3,920
IGISave 85.1%4.75ct | Round | F | VS1 | Ideal
From $1,265
Compare at $8,510
IGISave 81.4%4.75ct | Round | G | VS2 | Ideal
From $805
Compare at $4,320
IGISave 65.9%4.75ct | Round | E | VVS2 | Excellent
From $1,254
Compare at $3,673
IGISave 83.4%4.75ct | Round | E | VS2 | Ideal
From $1,014
Compare at $6,100
IGISave 89.1%4.75ct | Round | E | VVS2 | Excellent
From $1,468
Compare at $13,500
IGISave 70.3%4.75ct | Round | E | VVS2 | Ideal
From $1,224
Compare at $4,120
IGISave 88%4.75ct | Round | E | VS1 | Ideal
From $1,415
Compare at $11,790
GIASave 71%4.75ct | Round | G | VS2 | Excellent
From $5,035
Compare at $17,370
IGISave 89.2%4.75ct | Round | E | VS1 | Ideal
From $1,465
Compare at $13,600
IGISave 91.3%4.75ct | Round | E | VVS2 | Ideal
From $1,173
Compare at $13,450
IGISave 69.8%4.75ct | Round | F | VS1 | Excellent
From $1,091
Compare at $3,610
IGISave 64.1%4.75ct | Round | F | VS2 | Excellent
From $1,245
Compare at $3,465
IGISave 89.5%4.75ct | Round | E | VVS2 | Ideal
From $1,282
Compare at $12,250
IGISave 91%4.75ct | Round | E | VVS2 | Ideal
From $1,224
Compare at $13,540
IGISave 77.2%4.75ct | Round | D | VVS1 | Excellent
From $3,783
Compare at $16,600
IGISave 67.3%4.75ct | Round | E | VS1 | Excellent
From $1,287
Compare at $3,940
IGISave 73.2%4.75ct | Round | E | VVS2 | Excellent
From $1,351
Compare at $5,035
IGISave 67.3%4.75ct | Round | D | VS1 | Excellent
From $1,523
Compare at $4,655
IGISave 69.6%4.75ct | Round | E | VVS2 | Ideal
From $1,254
Compare at $4,120
IGISave 89.6%4.75ct | Round | E | VVS2 | Ideal
From $1,401
Compare at $13,500
IGISave 88.3%4.75ct | Round | D | VS2 | Ideal
From $1,465
Compare at $12,500
IGISave 88.7%4.75ct | Round | F | VS1 | Excellent
From $1,400
Compare at $12,440
IGISave 17%4.75ct | Round | F | VVS2 | Excellent
From $1,128
Compare at $1,358
IGISave 71.9%4.75ct | Round | F | VS1 | Ideal
From $2,454
Compare at $8,740
IGISave 76.8%4.75ct | Round | E | VVS2 | Ideal
From $1,526
Compare at $6,580
Entry pricing in this category starts around $689.
What to Know When Shopping for 4.8 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $44,291 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 $1,256 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.
- Round brilliants command a premium due to higher rough waste during cutting. If budget matters, consider oval or cushion shapes for similar visual size.
Frequently Asked Questions
We currently track 700 comparable stones in this segment. Prices start around $689 and go up to $44,980.
Based on the latest market data, the average asking price is about $1,903 with a median around $1,256.
The observed spread is roughly $44,291 across tracked listings, which is about 98.5% 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 $1,256, 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 9 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 $44,291 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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