4.9 Carat Round Lab Grown Diamond Prices Comparison
As of February 2026, 4.9 carat round lab grown diamonds usually range from $748 to $49,350, with an average price of $1,830.In the last month, prices for these diamonds are down 1.2%.Compare 682 verified listings across 11 retailers tracked by CaratRadar.
4.9 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 682 verified 4.9-carat round lab grown diamonds listed across 11 online retailers. Prices in this segment range from $748 to $49,350, with an average asking price of $1,830 and a median of $1,247.
The price spread of $48,602 (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.
682 diamonds tracked in this segment
Price range: $748 to $49,350
Average price: $1,830
Median price: $1,247
Available across 11 retailers
Savings potential: up to 98.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
682
$748
$1,830
$1,247
$49,350
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 67.3%4.85ct | Round | E | VS1 | Excellent
From $1,314
Compare at $4,025
IGISave 67.3%4.85ct | Round | E | VS1 | Excellent
From $1,314
Compare at $4,025
IGISave 88.3%4.85ct | Round | F | VS2 | Ideal
From $1,151
Compare at $9,810
IGISave 83.5%4.85ct | Round | E | VS1 | Ideal
From $959
Compare at $5,820
IGISave 51%4.85ct | Round | E | VVS2 | Excellent
From $3,410
Compare at $6,960
IGISave 92.2%4.85ct | Round | E | VVS2 | Ideal
From $1,214
Compare at $15,500
IGISave 51%4.85ct | Round | E | VVS2 | Excellent
From $3,410
Compare at $6,960
IGISave 83%4.85ct | Round | F | VS1 | Ideal
From $982
Compare at $5,760
IGISave 51%4.85ct | Round | E | VVS2 | Ideal
From $3,410
Compare at $6,960
IGISave 90.6%4.85ct | Round | F | VVS2 | Excellent
From $1,234
Compare at $13,090
IGISave 90.9%4.85ct | Round | F | VS1 | Ideal
From $989
Compare at $10,920
IGISave 85.1%4.85ct | Round | E | VVS2 | Excellent
From $2,040
Compare at $13,740
IGISave 77.5%4.85ct | Round | E | IF | Ideal
From $4,949
Compare at $21,950
IGISave 88.3%4.85ct | Round | D | VS2 | Ideal
From $1,492
Compare at $12,760
IGISave 78.1%4.85ct | Round | E | VVS2 | Ideal
From $1,166
Compare at $5,335
IGISave 90.8%4.85ct | Round | E | VS1 | Excellent
From $1,108
Compare at $12,030
IGISave 90.9%4.85ct | Round | E | VS1 | Excellent
From $1,098
Compare at $12,030
IGISave 90.8%4.85ct | Round | E | VS1 | Ideal
From $1,108
Compare at $12,030
IGISave 87.8%4.85ct | Round | F | VVS2 | Ideal
From $1,428
Compare at $11,710
IGISave 72%4.85ct | Round | E | VS1 | Excellent
From $1,128
Compare at $4,025
IGISave 76.9%4.85ct | Round | G | VS1 | Excellent
From $1,428
Compare at $6,170
IGISave 82.3%4.85ct | Round | G | VS2 | Ideal
From $748
Compare at $4,230
IGISave 61%4.85ct | Round | F | VS1 | Ideal
From $1,972
Compare at $5,062
IGISave 92%4.85ct | Round | D | VS1 | Excellent
From $1,122
Compare at $14,090
IGISave 83.6%4.85ct | Round | E | VS1 | Ideal
From $966
Compare at $5,880
IGISave 71.9%4.85ct | Round | E | VS1 | Ideal
From $3,371
Compare at $11,980
IGISave 83.6%4.85ct | Round | E | VS1 | Ideal
From $966
Compare at $5,880
IGISave 89.6%4.85ct | Round | F | VS2 | Ideal
From $849
Compare at $8,170
IGISave 88.8%4.85ct | Round | E | VS1 | Ideal
From $1,343
Compare at $12,030
IGISave 84.7%4.85ct | Round | F | VS2 | Excellent
From $1,498
Compare at $9,810
IGISave 78.1%4.85ct | Round | E | VVS2 | Ideal
From $1,166
Compare at $5,335
IGISave 68.5%4.85ct | Round | E | VS1 | Ideal
From $1,314
Compare at $4,170
IGISave 77.3%4.85ct | Round | E | VVS2 | Excellent
From $1,166
Compare at $5,140
IGISave 89%4.85ct | Round | F | VVS2 | Ideal
From $1,236
Compare at $11,230
IGISave 87.8%4.85ct | Round | F | VS1 | Ideal
From $1,343
Compare at $10,990
IGISave 65.1%4.85ct | Round | F | VS1 | Excellent
From $1,285
Compare at $3,685
IGISave 86.2%4.85ct | Round | D | VS1 | Ideal
From $2,132
Compare at $15,480
IGISave 72%4.85ct | Round | F | VVS2 | Excellent
From $1,329
Compare at $4,750
IGISave 51%4.85ct | Round | E | VVS2 | Ideal
From $3,410
Compare at $6,960
IGISave 84.5%4.85ct | Round | E | VS1 | Ideal
From $1,692
Compare at $10,910
IGISave 82.9%4.85ct | Round | E | VS1 | Ideal
From $1,004
Compare at $5,880
IGISave 91.8%4.85ct | Round | E | VS1 | Ideal
From $982
Compare at $11,980
IGISave 83%4.85ct | Round | F | VS1 | Ideal
From $982
Compare at $5,760
IGISave 91.7%4.85ct | Round | D | VS1 | Ideal
From $1,176
Compare at $14,090
IGISave 86.5%4.85ct | Round | E | VVS2 | Ideal
From $1,857
Compare at $13,740
IGISave 84%4.85ct | Round | E | VS1 | Excellent
From $1,043
Compare at $6,520
IGISave 83.1%4.85ct | Round | E | VS2 | Excellent
From $951
Compare at $5,630
IGISave 73%4.85ct | Round | E | VS1 | Ideal
From $1,128
Compare at $4,170
IGISave 73%4.85ct | Round | E | VS1 | Ideal
From $1,128
Compare at $4,170
IGISave 90.6%4.85ct | Round | E | VS1 | Ideal
From $1,128
Compare at $12,060
Entry pricing in this category starts around $748.
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 $48,602 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 $1,247 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 682 comparable stones in this segment. Prices start around $748 and go up to $49,350.
Based on the latest market data, the average asking price is about $1,830 with a median around $1,247.
The observed spread is roughly $48,602 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 $1,247, 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 11 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 $48,602 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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