1 Carat Round Natural Diamond Prices Comparison
As of July 2026, 1 carat round natural diamonds usually range from $450 to $13,211, with an average price of $4,089.In the last month, prices for these diamonds are down 0.1%.Compare 22,900 verified listings across 11 retailers tracked by CaratRadar.
1 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 22,900 verified 1-carat round natural diamonds listed across 11 online retailers. Prices in this segment range from $450 to $13,211, with an average asking price of $4,089 and a median of $3,710.
The price spread of $12,761 (96.6% 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.
22,900 diamonds tracked in this segment
Price range: $450 to $13,211
Average price: $4,089
Median price: $3,710
Available across 11 retailers
Savings potential: up to 96.6%
Price Range Overview
As of Jul 13, 2026Real market range for this carat, shape, and diamond type.
22,900
$450
$4,089
$3,710
$13,211
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 15.1%IGI | 1ct | Round | G | I1 | Good
From $629
Compare at $741
Save 23.5%IGI | 1.01ct | Round | G | I1 | Very Good
From $672
Compare at $879
IGI | 1.02ct | Round | F | I1 | Very Good
From $768
Compare at $790
IGI | 1ct | Round | L | SI2 | Very Good
From $782
Compare at $814
IGI | 1.03ct | Round | K | SI2 | Excellent
From $810
Compare at $899
IGI | 1ct | Round | L | SI2 | Excellent
From $811
Compare at $845
IGI | 1ct | Round | L | I1 | Very Good
From $812
Compare at $847
Save 12.1%IGI | 1.01ct | Round | K | I1 | Ideal
From $853
Compare at $970
IGI | 1ct | Round | J | I1 | Very Good
From $887
Compare at $930
HRD | 1.01ct | Round | H | I1 | Very Good
From $889
Compare at $979
IGI | 1.02ct | Round | L | I1 | Ideal
From $890
Compare at $933
IGI | 1.05ct | Round | K | I1 | Excellent
From $910
Compare at $937
IGI | 1ct | Round | L | SI1 | Excellent
From $929
Compare at $1,020
IGI | 1.01ct | Round | H | SI2 | Ideal
From $953
Compare at $1,001
GIA | 1.01ct | Round | L | SI1 | Good
From $957
Compare at $1,022
IGI | 1.06ct | Round | L | SI2 | Ideal
From $961
Compare at $992
Save 29%GIA | 1ct | Round | L | SI2 | Good
From $964
Compare at $1,358
IGI | 1.01ct | Round | L | SI2 | Ideal
From $965
Compare at $1,052
IGI | 1ct | Round | K | SI1 | Excellent
From $976
Compare at $980
IGI | 1.03ct | Round | J | SI2 | Ideal
From $978
Compare at $1,028
Save 31.2%GIA | 1ct | Round | L | SI2 | Very Good
From $981
Compare at $1,426
IGI | 1.08ct | Round | L | I1 | Ideal
From $983
Compare at $1,070
IGI | 1.01ct | Round | K | SI1 | Ideal
From $984
Compare at $985
Save 24.6%GIA | 1ct | Round | L | SI2 | Excellent
From $986
Compare at $1,308
Save 29%GIA | 1ct | Round | K | I1 | Very Good
From $989
Compare at $1,392
IGI | 1ct | Round | H | SI2 | Very Good
From $989
Compare at $1,057
Save 20.9%GIA | 1ct | Round | L | SI1 | Very Good
From $992
Compare at $1,254
IGI | 1ct | Round | K | SI2 | Ideal
From $1,000
Compare at $1,092
Save 32.7%GIA | 1ct | Round | K | SI2 | Good
From $1,001
Compare at $1,487
GIA | 1.02ct | Round | I | I1 | Very Good
From $1,002
Compare at $1,094
GIA | 1ct | Round | J | I1 | Very Good
From $1,004
Compare at $1,073
IGI | 1.09ct | Round | J | SI2 | Ideal
From $1,009
Compare at $1,060
Save 24%IGI | 1ct | Round | J | SI2 | Ideal
From $1,018
Compare at $1,340
Save 30.9%GIA | 1ct | Round | J | I1 | Ideal
From $1,020
Compare at $1,476
Save 10.4%IGI | 1.07ct | Round | L | I1 | Ideal
From $1,021
Compare at $1,139
Save 14%IGI | 1ct | Round | K | SI1 | Ideal
From $1,023
Compare at $1,190
Save 24.5%GIA | 1.01ct | Round | L | SI1 | Good
From $1,025
Compare at $1,357
IGI | 1ct | Round | K | SI1 | Very Good
From $1,027
Compare at $1,030
Save 32%GIA | 1ct | Round | K | SI2 | Very Good
From $1,031
Compare at $1,517
IGI | 1.01ct | Round | L | SI1 | Excellent
From $1,037
Compare at $1,133
IGI | 1.01ct | Round | L | SI1 | Excellent
From $1,037
Compare at $1,133
IGI | 1.01ct | Round | J | SI2 | Very Good
From $1,037
Compare at $1,133
GIA | 1ct | Round | J | I1 | Ideal
From $1,042
Compare at $1,138
Save 10.4%IGI | 1.02ct | Round | K | I1 | Ideal
From $1,044
Compare at $1,165
Save 32.5%GIA | 1.01ct | Round | J | SI1 | Very Good
From $1,046
Compare at $1,550
IGI | 1ct | Round | K | SI1 | Very Good
From $1,060
Save 10.5%IGI | 1.01ct | Round | J | I1 | Ideal
From $1,068
Compare at $1,193
Save 32.1%GIA | 1ct | Round | L | SI2 | Excellent
From $1,070
Compare at $1,575
Save 18.2%GIA | 1.01ct | Round | L | SI2 | Ideal
From $1,081
Compare at $1,321
Save 13%IGI | 1.01ct | Round | L | SI2 | Ideal
From $1,081
Compare at $1,242
Entry pricing in this category starts around $450.
What to Know When Shopping for 1 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $12,761 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 $3,710 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 22,900 comparable stones in this segment. Prices start around $450 and go up to $13,211.
Based on the latest market data, the average asking price is about $4,089 with a median around $3,710.
The observed spread is roughly $12,761 across tracked listings, which is about 96.6% 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 $4,089. The median price is $3,710, 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 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 $12,761 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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Tracking Natural inventory for 1 carat Round diamonds.