4 Carat Round Natural Diamond Prices Comparison
As of May 2026, 4 carat round natural diamonds usually range from $2,373 to $230,287, with an average price of $69,974.In the last month, prices for these diamonds are up 0.8%.Compare 530 verified listings across 9 retailers tracked by CaratRadar.
4 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 530 verified 4-carat round natural diamonds listed across 9 online retailers. Prices in this segment range from $2,373 to $230,287, with an average asking price of $69,974 and a median of $64,627.
The price spread of $227,914 (99.0% 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.
530 diamonds tracked in this segment
Price range: $2,373 to $230,287
Average price: $69,974
Median price: $64,627
Available across 9 retailers
Savings potential: up to 99.0%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
530
$2,373
$69,974
$64,627
$230,287
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIA | 4.01ct | Round | L | SI2 | Ideal
From $16,084
Compare at $17,107
Save 14.2%IGI | 4.02ct | Round | K | SI1 | Excellent
From $17,315
Compare at $20,183
IGI | 4.02ct | Round | K | VS2 | Ideal
From $20,290
Compare at $22,537
Save 10.1%IGI | 4ct | Round | K | SI1 | Excellent
From $21,010
Compare at $23,379
Save 10.4%IGI | 4.01ct | Round | K | SI1 | Excellent
From $21,325
Compare at $23,802
IGI | 4.01ct | Round | K | SI1 | Excellent
From $22,690
Compare at $22,695
Save 19.7%GIA | 4.01ct | Round | L | VS1 | Excellent
From $24,945
Compare at $31,071
IGI | 4.01ct | Round | K | SI1 | Excellent
From $25,324
Compare at $25,325
Save 19.7%GIA | 4.02ct | Round | L | SI2 | Excellent
From $25,471
Compare at $31,724
GIA | 4.01ct | Round | L | SI1 | Excellent
From $25,831
Compare at $26,403
GIA | 4.01ct | Round | L | VS2 | Excellent
From $26,403
Compare at $27,198
Save 36.3%GIA | 4.03ct | Round | L | SI1 | Excellent
From $26,615
Compare at $41,805
GIA | 4.01ct | Round | L | SI2 | Ideal
From $26,848
Compare at $28,475
IGI | 4.01ct | Round | K | VS2 | Excellent
From $26,970
Compare at $27,979
IGI | 4.01ct | Round | K | IF | Excellent
From $27,485
Compare at $30,469
IGI | 4.01ct | Round | J | SI1 | Excellent
From $28,165
Compare at $29,236
Save 37.4%GIA | 4.03ct | Round | L | SI2 | Excellent
From $28,371
Compare at $45,319
GIA | 4.08ct | Round | K | SI2 | Excellent
From $28,765
Compare at $28,794
GIA | 4.02ct | Round | K | SI2 | Excellent
From $28,898
Compare at $30,006
IGI | 4.01ct | Round | J | VS2 | Excellent
From $28,910
Compare at $32,060
Save 34.7%GIA | 4.03ct | Round | K | SI2 | Excellent
From $29,054
Compare at $44,492
IGI | 4.02ct | Round | J | SI1 | Excellent
From $29,220
Compare at $31,742
IGI | 4ct | Round | J | VS2 | Excellent
From $29,260
Compare at $32,449
Save 19.1%GIA | 4.01ct | Round | L | SI2 | Excellent
From $30,027
Compare at $37,118
Save 16.2%GIA | 4.01ct | Round | K | VS1 | Excellent
From $30,500
Compare at $36,382
Save 22.5%GIA | 4.01ct | Round | L | SI2 | Excellent
From $30,791
Compare at $39,736
GIA | 4.01ct | Round | L | VVS2 | Ideal
From $31,010
Compare at $32,877
Save 29.8%GIA | 4.01ct | Round | K | SI1 | Excellent
From $31,062
Compare at $44,245
GIA | 4ct | Round | K | SI1 | Very Good
From $31,111
Compare at $33,400
GIA | 4.01ct | Round | K | SI1 | Excellent
From $31,188
Compare at $33,483
Save 29.1%GIA | 4.01ct | Round | L | SI1 | Excellent
From $31,321
Compare at $44,174
Save 29.8%GIA | 4.02ct | Round | K | SI2 | Excellent
From $31,551
Compare at $44,939
Save 16.9%IGI | 4.03ct | Round | I | VS2 | Excellent
From $31,650
Compare at $38,096
IGI | 4.01ct | Round | K | VVS1 | Excellent
From $31,745
Compare at $33,000
GIA | 4.01ct | Round | K | SI1 | Excellent
From $31,963
Compare at $32,635
Save 14.5%GIA | 4.01ct | Round | L | SI1 | Excellent
From $32,013
Compare at $37,423
Save 19.1%GIA | 4.05ct | Round | L | VS2 | Excellent
From $32,193
Compare at $39,791
IGI | 4.01ct | Round | I | SI1 | Excellent
From $32,290
Compare at $35,319
Save 19.1%GIA | 4.01ct | Round | K | VS2 | Very Good
From $32,337
Compare at $39,968
IGI | 4ct | Round | J | VS1 | Excellent
From $32,380
Compare at $33,774
GIA | 4.01ct | Round | K | VS2 | Ideal
From $32,475
Compare at $35,536
GIA | 4.02ct | Round | K | VS2 | Ideal
From $32,556
Compare at $35,624
Save 29.1%GIA | 4ct | Round | L | SI1 | Excellent
From $32,700
Compare at $46,110
Save 29.8%GIA | 4.02ct | Round | L | SI2 | Excellent
From $32,863
Compare at $46,800
IGI | 4.01ct | Round | J | SI1 | Excellent
From $33,055
Compare at $34,384
IGI | 4.02ct | Round | J | SI1 | Excellent
From $33,140
Compare at $34,470
IGI | 4ct | Round | J | VVS2 | Ideal
From $33,195
Compare at $35,120
GIA | 4.07ct | Round | K | VS2 | Excellent
From $33,393
Compare at $36,805
Save 29.8%GIA | 4.03ct | Round | L | VVS2 | Excellent
From $33,576
Compare at $47,811
Save 35.9%GIA | 4.01ct | Round | L | VS2 | Excellent
From $33,768
Compare at $52,643
Entry pricing in this category starts around $2,373.
What to Know When Shopping for 4 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $227,914 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 $64,627 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.
- Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
- 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 530 comparable stones in this segment. Prices start around $2,373 and go up to $230,287.
Based on the latest market data, the average asking price is about $69,974 with a median around $64,627.
The observed spread is roughly $227,914 across tracked listings, which is about 99.0% 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 $69,974. The median price is $64,627, 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 9 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 $227,914 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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