4.8 Carat Round Lab Grown Diamond Prices Comparison
As of May 2026, 4.8 carat round lab grown diamonds usually range from $660 to $35,387, with an average price of $3,802.In the last month, prices for these diamonds are down 4.8%.Compare 326 verified listings across 10 retailers tracked by CaratRadar.
4.8 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 326 verified 4.8-carat round lab grown diamonds listed across 10 online retailers. Prices in this segment range from $660 to $35,387, with an average asking price of $3,802 and a median of $2,694.
The price spread of $34,727 (98.1% 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.
326 diamonds tracked in this segment
Price range: $660 to $35,387
Average price: $3,802
Median price: $2,694
Available across 10 retailers
Savings potential: up to 98.1%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
326
$660
$3,802
$2,694
$35,387
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 52%IGI | 4.9ct | Round | F | VS2 | Ideal
From $798
Compare at $1,661
Save 78.5%IGI | 4.81ct | Round | H | VS2 | Ideal
From $806
Compare at $3,750
Save 76.7%IGI | 4.82ct | Round | E | VS2 | Excellent
From $819
Compare at $3,515
Save 67.3%IGI | 4.8ct | Round | F | VS1 | Ideal
From $830
Compare at $2,536
Save 28.3%IGI | 4.81ct | Round | E | VS1 | Ideal
From $833
Compare at $1,163
Save 77.4%IGI | 4.82ct | Round | E | VS1 | Excellent
From $850
Compare at $3,755
Save 75.8%IGI | 4.84ct | Round | E | VS2 | Excellent
From $853
Compare at $3,530
IGI | 4.9ct | Round | F | VS1 | Ideal
From $853
Compare at $2,276
Save 77.4%IGI | 4.85ct | Round | E | VS1 | Excellent
From $855
Compare at $3,780
Save 77.4%IGI | 4.86ct | Round | E | VS1 | Excellent
From $857
Compare at $3,790
Save 75.9%IGI | 4.88ct | Round | E | VS2 | Excellent
From $858
Compare at $3,560
Save 77.4%IGI | 4.87ct | Round | E | VS1 | Excellent
From $858
Compare at $3,795
Save 75.9%IGI | 4.87ct | Round | E | VS2 | Excellent
From $858
Compare at $3,555
Save 75.9%IGI | 4.87ct | Round | E | VS2 | Excellent
From $858
Compare at $3,555
Save 77.4%IGI | 4.89ct | Round | E | VS1 | Ideal
From $862
Compare at $3,810
Save 77.4%IGI | 4.89ct | Round | E | VS1 | Excellent
From $862
Compare at $3,810
Save 76.5%IGI | 4.8ct | Round | E | VS1 | Excellent
From $878
Compare at $3,740
Save 76.5%IGI | 4.82ct | Round | E | VS1 | Excellent
From $881
Compare at $3,755
Save 76.6%IGI | 4.84ct | Round | E | VS1 | Excellent
From $885
Compare at $3,775
Save 76.5%IGI | 4.85ct | Round | E | VS1 | Excellent
From $887
Compare at $3,780
Save 76.5%IGI | 4.85ct | Round | E | VS1 | Excellent
From $887
Compare at $3,780
Save 76.6%IGI | 4.86ct | Round | E | VS1 | Excellent
From $888
Compare at $3,790
Save 76.6%IGI | 4.86ct | Round | E | VS1 | Excellent
From $888
Compare at $3,790
Save 76.6%IGI | 4.86ct | Round | E | VS1 | Excellent
From $888
Compare at $3,790
Save 76.6%IGI | 4.86ct | Round | E | VS1 | Excellent
From $888
Compare at $3,790
Save 76.3%IGI | 4.81ct | Round | E | VS1 | Excellent
From $890
Compare at $3,750
Save 76.6%IGI | 4.88ct | Round | E | VS1 | Excellent
From $892
Compare at $3,805
Save 76.6%IGI | 4.88ct | Round | E | VS1 | Excellent
From $892
Compare at $3,805
Save 76.2%IGI | 4.82ct | Round | E | VS1 | Excellent
From $892
Compare at $3,755
Save 24.9%IGI | 4.81ct | Round | E | VVS2 | Ideal
From $898
Compare at $1,196
Save 76.2%IGI | 4.85ct | Round | E | VS1 | Excellent
From $898
Compare at $3,780
Save 76.2%IGI | 4.85ct | Round | E | VS1 | Excellent
From $898
Compare at $3,780
Save 13.7%IGI | 4.87ct | Round | E | VS1 | Ideal
From $922
Compare at $1,068
Save 13.6%IGI | 4.88ct | Round | E | VS1 | Ideal
From $924
Compare at $1,070
Save 80%IGI | 4.87ct | Round | G | VS2 | Ideal
From $925
Compare at $4,620
Save 67.2%IGI | 4.8ct | Round | E | VVS2 | Excellent
From $960
Compare at $2,926
Save 68%IGI | 4.88ct | Round | E | VVS2 | Excellent
From $966
Compare at $3,016
Save 79.9%IGI | 4.9ct | Round | G | VVS2 | Excellent
From $968
Compare at $4,810
Save 67.3%IGI | 4.84ct | Round | E | VVS2 | Excellent
From $971
Compare at $2,972
Save 70.5%IGI | 4.88ct | Round | G | VS2 | Ideal
From $972
Compare at $3,294
Save 62.3%IGI | 4.8ct | Round | E | VS1 | Ideal
From $990
Compare at $2,627
Save 70.5%IGI | 4.86ct | Round | E | VS2 | Excellent
From $990
Compare at $3,356
Save 62.4%IGI | 4.82ct | Round | E | VS1 | Ideal
From $994
Compare at $2,646
Save 72.7%IGI | 4.9ct | Round | E | VVS2 | Excellent
From $998
Compare at $3,659
Save 62.7%IGI | 4.86ct | Round | E | VS1 | Excellent
From $1,002
Compare at $2,688
Save 63.1%IGI | 4.89ct | Round | E | VS1 | Ideal
From $1,003
Compare at $2,719
Save 70.5%IGI | 4.83ct | Round | G | VVS2 | Ideal
From $1,007
Compare at $3,412
Save 60.6%IGI | 4.8ct | Round | F | VS1 | Ideal
From $1,012
Compare at $2,572
Save 60.7%IGI | 4.81ct | Round | F | VS1 | Ideal
From $1,014
Compare at $2,577
Save 60.7%IGI | 4.82ct | Round | F | VS1 | Ideal
From $1,016
Compare at $2,582
Entry pricing in this category starts around $660.
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 $34,727 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 $2,694 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 326 comparable stones in this segment. Prices start around $660 and go up to $35,387.
Based on the latest market data, the average asking price is about $3,802 with a median around $2,694.
The observed spread is roughly $34,727 across tracked listings, which is about 98.1% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $3,802. The median price is $2,694, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
We currently track this stone category across 10 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 $34,727 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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