3 Carat Round Lab Grown Diamond Prices Comparison
As of July 2026, 3 carat round lab grown diamonds usually range from $174 to $11,130, with an average price of $2,204.In the last month, prices for these diamonds are down 1.3%.Compare 18,635 verified listings across 15 retailers tracked by CaratRadar.
3 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 18,635 verified 3-carat round lab grown diamonds listed across 15 online retailers. Prices in this segment range from $174 to $11,130, with an average asking price of $2,204 and a median of $1,728.
The price spread of $10,956 (98.4% 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.
18,635 diamonds tracked in this segment
Price range: $174 to $11,130
Average price: $2,204
Median price: $1,728
Available across 15 retailers
Savings potential: up to 98.4%
Price Range Overview
As of Jul 12, 2026Real market range for this carat, shape, and diamond type.
18,635
$174
$2,204
$1,728
$11,130
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 79.2%IGI | 3.04ct | Round | E | SI2 | Ideal
From $435
Compare at $2,090
Save 79.9%IGI | 3ct | Round | G | SI1 | Ideal
From $437
Compare at $2,170
Save 70.3%IGI | 3.08ct | Round | H | VS1 | Ideal
From $443
Compare at $1,493
Save 70%IGI | 3.06ct | Round | H | VS1 | Ideal
From $445
Compare at $1,484
Save 70.3%IGI | 3.09ct | Round | H | VS1 | Ideal
From $445
Compare at $1,498
Save 49.4%IGI | 3.03ct | Round | H | VS1 | Ideal
From $445
Compare at $880
Save 70%IGI | 3.06ct | Round | H | VS1 | Ideal
From $445
Compare at $1,484
Save 50.5%IGI | 3.07ct | Round | H | VS1 | Ideal
From $446
Compare at $901
Save 50.5%IGI | 3.07ct | Round | H | VS1 | Ideal
From $446
Compare at $901
Save 70.3%IGI | 3.1ct | Round | H | VS1 | Ideal
From $446
Compare at $1,503
Save 50.5%IGI | 3.07ct | Round | H | VS1 | Ideal
From $446
Compare at $901
Save 51.4%IGI | 3.1ct | Round | H | VS1 | Ideal
From $446
Compare at $917
Save 50.5%IGI | 3.07ct | Round | H | VS1 | Ideal
From $446
Compare at $901
Save 59.4%IGI | 3.03ct | Round | F | SI1 | Ideal
From $446
Compare at $1,098
Save 50.7%IGI | 3.08ct | Round | H | VS1 | Ideal
From $447
Compare at $907
Save 70.1%IGI | 3.04ct | Round | H | VS1 | Excellent
From $447
Compare at $1,495
Save 70%IGI | 3.05ct | Round | H | VS1 | Ideal
From $449
Compare at $1,499
Save 50.8%IGI | 3.09ct | Round | H | VS1 | Ideal
From $449
Compare at $912
Save 70.1%IGI | 3.06ct | Round | H | VS1 | Ideal
From $450
Compare at $1,504
Save 70.1%IGI | 3.06ct | Round | H | VS1 | Ideal
From $450
Compare at $1,504
Save 70.1%IGI | 3.06ct | Round | H | VS1 | Ideal
From $450
Compare at $1,504
Save 70.1%IGI | 3.06ct | Round | H | VS1 | Ideal
From $450
Compare at $1,504
Save 70.1%IGI | 3.07ct | Round | H | VS1 | Ideal
From $451
Compare at $1,510
Save 76.3%IGI | 3ct | Round | G | VS1 | Excellent
From $452
Compare at $1,909
Save 50.1%IGI | 3.08ct | Round | H | VS1 | Ideal
From $453
Compare at $908
Save 70.1%IGI | 3.08ct | Round | H | VS1 | Ideal
From $453
Compare at $1,515
Save 70.1%IGI | 3.09ct | Round | H | VS1 | Ideal
From $454
Compare at $1,520
Save 50.3%IGI | 3.09ct | Round | H | VS1 | Ideal
From $454
Compare at $913
Save 50.4%IGI | 3.1ct | Round | H | VS1 | Ideal
From $455
Compare at $918
Save 75.9%IGI | 3.02ct | Round | G | VS2 | Excellent
From $456
Compare at $1,895
Save 75.6%IGI | 3ct | Round | G | VS1 | Excellent
From $459
Compare at $1,882
Save 75.9%IGI | 3.04ct | Round | G | VS1 | Excellent
From $459
Compare at $1,907
Save 76.6%IGI | 3.02ct | Round | G | VVS2 | Excellent
From $462
Compare at $1,975
Save 76%IGI | 3.03ct | Round | G | VVS2 | Excellent
From $463
Compare at $1,928
Save 76%IGI | 3.03ct | Round | G | VS1 | Excellent
From $463
Compare at $1,928
Save 76%IGI | 3.03ct | Round | G | VVS2 | Excellent
From $463
Compare at $1,928
Save 76%IGI | 3.04ct | Round | G | VS1 | Excellent
From $465
Compare at $1,934
Save 76%IGI | 3.04ct | Round | G | VS1 | Excellent
From $465
Compare at $1,934
Save 75.9%IGI | 3.07ct | Round | G | VS1 | Excellent
From $470
Compare at $1,953
Save 76%IGI | 3.03ct | Round | H | VVS2 | Excellent
From $470
Compare at $1,955
Save 75.3%IGI | 3ct | Round | G | VVS2 | Excellent
From $472
Compare at $1,909
Save 15.4%IGI | 3ct | Round | I | VS1 | Ideal
From $474
Compare at $560
Save 48.9%IGI | 3.01ct | Round | H | VVS2 | Ideal
From $475
Compare at $930
Save 75.9%IGI | 3.02ct | Round | G | VVS2 | Excellent
From $475
Compare at $1,975
Save 75.9%IGI | 3.02ct | Round | G | VVS2 | Excellent
From $475
Compare at $1,975
Save 79%IGI | 3ct | Round | F | SI1 | Excellent
From $477
Compare at $2,270
Save 75.3%IGI | 3.03ct | Round | G | VVS2 | Excellent
From $477
Compare at $1,928
Save 75.9%IGI | 3.03ct | Round | G | VVS2 | Excellent
From $477
Compare at $1,981
Save 75.9%IGI | 3.03ct | Round | G | VVS2 | Ideal
From $477
Compare at $1,981
Save 76%IGI | 3.05ct | Round | G | VVS2 | Ideal
From $479
Compare at $1,995
Entry pricing in this category starts around $174.
What to Know When Shopping for 3 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $10,956 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 $1,728 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 18,635 comparable stones in this segment. Prices start around $174 and go up to $11,130.
Based on the latest market data, the average asking price is about $2,204 with a median around $1,728.
The observed spread is roughly $10,956 across tracked listings, which is about 98.4% 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 $2,204. The median price is $1,728, 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 15 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 $10,956 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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