4.9 Carat Round Lab Grown Diamond Prices Comparison
As of May 2026, 4.9 carat round lab grown diamonds usually range from $595 to $31,705, with an average price of $3,462.In the last month, prices for these diamonds are down 4.3%.Compare 203 verified listings across 7 retailers tracked by CaratRadar.
4.9 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 203 verified 4.9-carat round lab grown diamonds listed across 7 online retailers. Prices in this segment range from $595 to $31,705, with an average asking price of $3,462 and a median of $2,660.
The price spread of $31,110 (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.
203 diamonds tracked in this segment
Price range: $595 to $31,705
Average price: $3,462
Median price: $2,660
Available across 7 retailers
Savings potential: up to 98.1%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
203
$595
$3,462
$2,660
$31,705
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 76.7%IGI | 4.91ct | Round | E | VS2 | Excellent
From $834
Compare at $3,580
Save 76.7%IGI | 4.92ct | Round | E | VS2 | Excellent
From $836
Compare at $3,590
Save 68.3%IGI | 4.92ct | Round | F | VS1 | Excellent
From $840
Compare at $2,654
Save 75.9%IGI | 4.94ct | Round | E | VS2 | Excellent
From $870
Compare at $3,605
Save 75.9%IGI | 4.96ct | Round | E | VS2 | Excellent
From $874
Compare at $3,620
Save 75.8%IGI | 4.97ct | Round | E | VS2 | Excellent
From $876
Compare at $3,625
Save 75.9%IGI | 4.98ct | Round | E | VS2 | Excellent
From $877
Compare at $3,635
Save 67.1%IGI | 4.94ct | Round | F | VS1 | Excellent
From $881
Compare at $2,674
Save 75.6%IGI | 4.96ct | Round | E | VS2 | Excellent
From $882
Compare at $3,620
Save 76.5%IGI | 4.91ct | Round | E | VS1 | Excellent
From $898
Compare at $3,825
Save 76.5%IGI | 4.91ct | Round | E | VS1 | Excellent
From $898
Compare at $3,825
Save 76.6%IGI | 4.93ct | Round | E | VS1 | Excellent
From $901
Compare at $3,845
Save 68.5%IGI | 4.91ct | Round | G | VVS2 | Very Good
From $905
Compare at $2,871
Save 76.6%IGI | 4.96ct | Round | E | VS1 | Excellent
From $906
Compare at $3,865
Save 76.6%IGI | 4.96ct | Round | E | VS1 | Excellent
From $906
Compare at $3,865
Save 76.6%IGI | 4.96ct | Round | E | VS1 | Excellent
From $906
Compare at $3,865
Save 76.6%IGI | 4.97ct | Round | E | VS1 | Excellent
From $908
Compare at $3,875
Save 76.6%IGI | 4.97ct | Round | E | VS1 | Excellent
From $908
Compare at $3,875
Save 76.5%IGI | 4.98ct | Round | E | VS1 | Excellent
From $910
Compare at $3,880
Save 67.2%IGI | 4.99ct | Round | E | VS1 | Excellent
From $927
Compare at $2,826
Save 13.6%IGI | 4.91ct | Round | E | VS1 | Ideal
From $930
Compare at $1,077
Save 13.6%IGI | 4.91ct | Round | E | VS1 | Ideal
From $930
Compare at $1,077
Save 13.6%IGI | 4.92ct | Round | E | VS1 | Ideal
From $932
Compare at $1,079
Save 13.6%IGI | 4.92ct | Round | E | VS1 | Ideal
From $932
Compare at $1,079
Save 68.8%IGI | 4.93ct | Round | E | VVS2 | Excellent
From $958
Compare at $3,072
Save 66.1%IGI | 4.99ct | Round | E | VS1 | Excellent
From $965
Compare at $2,846
Save 68.4%IGI | 4.94ct | Round | E | VVS2 | Excellent
From $977
Compare at $3,088
Save 68.4%IGI | 4.95ct | Round | E | VVS2 | Ideal
From $980
Compare at $3,102
Save 68.4%IGI | 4.95ct | Round | E | VVS2 | Excellent
From $980
Compare at $3,102
Save 64.4%IGI | 4.92ct | Round | E | VS1 | Ideal
From $980
Compare at $2,749
Save 20.8%IGI | 4.99ct | Round | E | VVS2 | Excellent
From $981
Compare at $1,239
Save 68.6%IGI | 4.98ct | Round | E | VVS2 | Excellent
From $985
Compare at $3,139
Save 68.5%IGI | 4.97ct | Round | E | VVS2 | Excellent
From $985
Compare at $3,126
Save 68.7%IGI | 4.99ct | Round | E | VVS2 | Excellent
From $985
Compare at $3,150
Save 68.6%IGI | 4.98ct | Round | E | VVS2 | Ideal
From $985
Compare at $3,139
Save 68.6%IGI | 4.98ct | Round | E | VVS2 | Excellent
From $985
Compare at $3,139
Save 68.6%IGI | 4.98ct | Round | E | VVS2 | Ideal
From $985
Compare at $3,139
Save 73.6%IGI | 4.99ct | Round | E | VVS2 | Ideal
From $985
Compare at $3,726
Save 68%IGI | 4.94ct | Round | E | VVS2 | Excellent
From $988
Compare at $3,090
Save 68.1%IGI | 4.95ct | Round | E | VVS2 | Excellent
From $989
Compare at $3,102
Save 68.2%IGI | 4.96ct | Round | E | VVS2 | Excellent
From $991
Compare at $3,114
Save 12%IGI | 4.91ct | Round | D | VS2 | Ideal
From $993
Compare at $1,129
Save 68.2%IGI | 4.97ct | Round | E | VVS2 | Excellent
From $994
Compare at $3,126
Save 68.2%IGI | 4.97ct | Round | E | VVS2 | Excellent
From $994
Compare at $3,126
Save 68.3%IGI | 4.98ct | Round | E | VVS2 | Excellent
From $995
Compare at $3,139
Save 68.3%IGI | 4.98ct | Round | E | VVS2 | Excellent
From $995
Compare at $3,139
Save 68.3%IGI | 4.98ct | Round | E | VVS2 | Excellent
From $995
Compare at $3,139
Save 68.3%IGI | 4.98ct | Round | E | VVS2 | Excellent
From $995
Compare at $3,139
Save 68.3%IGI | 4.99ct | Round | E | VVS2 | Excellent
From $997
Compare at $3,150
Save 68.3%IGI | 4.99ct | Round | E | VVS2 | Excellent
From $997
Compare at $3,150
Entry pricing in this category starts around $595.
What to Know When Shopping for 4.9 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $31,110 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 $2,660 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 203 comparable stones in this segment. Prices start around $595 and go up to $31,705.
Based on the latest market data, the average asking price is about $3,462 with a median around $2,660.
The observed spread is roughly $31,110 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 $3,462. The median price is $2,660, 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 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 $31,110 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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