4 Carat Lab Grown Diamond Prices Comparison
As of March 2026, the average price of a 4 carat lab grown diamond is $3,719.4 carat diamonds can cost anywhere from $131 to $37,213 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are down 1.3%.Compare 35,411 verified listings across 13 retailers in the tables below.
4 Carat Lab Grown Diamond Market Overview
CaratRadar currently tracks 35,411 verified 4-carat lab grown diamonds listed across 13 online retailers. Prices in this segment range from $131 to $37,213, with an average asking price of $3,719 and a median of $2,705.
The price spread of $37,082 (99.6% 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.
35,411 diamonds tracked in this segment
Price range: $131 to $37,213
Average price: $3,719
Median price: $2,705
Available across 13 retailers
Savings potential: up to 99.6%
Price Range Overview
As of Mar 29, 2026Real market range for this carat, shape, and diamond type.
35,411
$131
$3,719
$2,705
$37,213
Price History
Price Comparison Matrix
4 Carat Lab Grown Diamond Prices by Shape
Shape-level averages for this carat and type. Open each shape page for full market detail.
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 62.8%IGI | 4ct | Antique | FANCY | VS1 | Ideal
From $2,938
Compare at $7,900
Save 69.8%IGI | 4ct | Antique | E | VVS1 | Ideal
From $4,307
Compare at $14,240
Save 59.3%IGI | 4.01ct | Antique | FANCY | VVS2 | Good
From $8,406
Compare at $20,660
Save 62.8%IGI | 4.02ct | Antique | FANCY | VVS2 | Ideal
From $3,451
Compare at $9,280
Save 60.6%IGI | 4.07ct | Antique | E | VVS2 | Ideal
From $3,866
Compare at $9,820
Save 44.8%GIA | 4ct | Asscher | F | VS2 | Excellent
From $3,805
Compare at $6,890
Save 72.9%GIA | 4ct | Asscher | D | VVS1 | Excellent
From $8,445
Compare at $31,212
Save 13.1%GIA | 4ct | Asscher | G | VS1 | Ideal
From $5,040
Compare at $5,800
Save 13.1%GIA | 4ct | Asscher | F | VS2 | Ideal
From $6,260
Compare at $7,200
Save 80.2%GIA | 4ct | Asscher | D | VVS1 | Excellent
From $8,095
Compare at $40,930
Save 55.4%IGI | 4ct | Asscher | G | VS2 | Ideal
From $1,238
Compare at $2,773
Save 37.5%IGI | 4ct | Asscher | H | VS1 | Ideal
From $1,568
Compare at $2,508
IGI | 4ct | Asscher | K | SI1 | Very Good
From $1,301
Compare at $1,324
Save 79%IGI | 4ct | Asscher | D | VS2 | Ideal
From $1,873
Compare at $8,900
Save 79%IGI | 4ct | Asscher | D | VS2 | Ideal
From $1,873
Compare at $8,900
Save 84.7%IGI | 4ct | Asscher | E | VS1 | Ideal
From $1,439
Compare at $9,410
Save 84.2%IGI | 4ct | Asscher | E | VS1 | Ideal
From $1,561
Compare at $9,900
Save 78.9%IGI | 4ct | Asscher | F | VVS2 | Excellent
From $2,231
Compare at $10,560
Save 83.8%IGI | 4ct | Asscher | D | SI1 | Ideal
From $1,097
Compare at $6,790
Save 83.5%IGI | 4ct | Asscher | F | VS1 | Ideal
From $1,299
Compare at $7,860
Save 40.5%IGI | 4ct | Asscher | E | VS1 | Ideal
From $1,561
Compare at $2,622
Save 80.1%IGI | 4ct | Asscher | D | VS1 | Ideal
From $1,361
Compare at $6,830
Save 77.8%IGI | 4ct | Asscher | G | VS1 | Ideal
From $1,832
Compare at $8,250
Save 84.2%IGI | 4ct | Asscher | E | VS1 | Ideal
From $1,561
Compare at $9,900
Save 84.2%IGI | 4ct | Asscher | E | VS1 | Ideal
From $1,561
Compare at $9,900
Save 84.7%IGI | 4ct | Asscher | E | VS1 | Ideal
From $1,439
Compare at $9,410
Save 75.5%IGI | 4ct | Asscher | D | VVS2 | Ideal
From $4,840
Compare at $19,770
Save 83%IGI | 4ct | Asscher | F | VS2 | Ideal
From $1,168
Compare at $6,890
Save 31.6%IGI | 4ct | Asscher | D | IF | Very Good
From $17,955
Compare at $26,256
Save 84.2%IGI | 4ct | Asscher | E | VS1 | Ideal
From $1,561
Compare at $9,900
Save 81.1%IGI | 4ct | Asscher | D | VS1 | Ideal
From $1,839
Compare at $9,720
Save 70.6%IGI | 4ct | Asscher | D | IF | Ideal
From $14,640
Compare at $49,870
Save 69.4%IGI | 4ct | Asscher | G | VVS2 | Ideal
From $1,439
Compare at $4,710
Save 40.5%IGI | 4ct | Asscher | E | VS1 | Ideal
From $1,561
Compare at $2,622
Save 40.5%IGI | 4ct | Asscher | E | VS1 | Ideal
From $1,561
Compare at $2,622
Save 71.8%IGI | 4ct | Asscher | D | IF | Ideal
From $14,040
Compare at $49,870
Save 70.6%IGI | 4ct | Asscher | D | IF | Ideal
From $14,640
Compare at $49,870
Save 70.6%IGI | 4ct | Asscher | D | IF | Ideal
From $14,640
Compare at $49,870
Save 71.8%IGI | 4ct | Asscher | D | IF | Ideal
From $14,040
Compare at $49,870
Save 71.8%IGI | 4ct | Asscher | D | IF | Ideal
From $14,040
Compare at $49,870
Save 70.6%IGI | 4ct | Asscher | D | IF | Ideal
From $14,640
Compare at $49,870
Save 87.3%IGI | 4ct | Asscher | D | VS1 | Ideal
From $1,238
Compare at $9,770
Save 79.1%IGI | 4ct | Asscher | E | VS2 | Ideal
From $1,599
Compare at $7,640
Save 80.6%IGI | 4ct | Asscher | D | VVS2 | Ideal
From $1,263
Compare at $6,510
Save 56.9%IGI | 4ct | Asscher | FANCY | VVS2 | Very Good
From $3,973
Compare at $9,213
Save 79.8%IGI | 4ct | Asscher | E | VS2 | Ideal
From $1,543
Compare at $7,640
Save 50.5%IGI | 4ct | Asscher | D | IF | Excellent
From $14,450
Compare at $29,198
Save 83.3%IGI | 4ct | Asscher | F | VS1 | Ideal
From $1,244
Compare at $7,470
Save 64.9%IGI | 4ct | Asscher | D | VVS1 | Excellent
From $5,563
Compare at $15,845
Save 76.1%IGI | 4ct | Asscher | D | VVS2 | Very Good
From $1,737
Compare at $7,270
Entry pricing in this category starts around $131.
What to Know When Shopping for 4 Carat Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $37,082 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 $2,705 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.
Frequently Asked Questions
We currently track 35,411 comparable stones in this segment. Prices start around $131 and go up to $37,213.
Based on the latest market data, the average asking price is about $3,719 with a median around $2,705.
The observed spread is roughly $37,082 across tracked listings, which is about 99.6% 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 $2,705, 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 13 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 $37,082 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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