1 Carat Round Natural Diamond Prices Comparison
As of May 2026, 1 carat round natural diamonds usually range from $450 to $13,290, with an average price of $4,118.In the last month, prices for these diamonds are up 0.3%.Compare 22,136 verified listings across 11 retailers tracked by CaratRadar.
1 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 22,136 verified 1-carat round natural diamonds listed across 11 online retailers. Prices in this segment range from $450 to $13,290, with an average asking price of $4,118 and a median of $3,739.
The price spread of $12,840 (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.
22,136 diamonds tracked in this segment
Price range: $450 to $13,290
Average price: $4,118
Median price: $3,739
Available across 11 retailers
Savings potential: up to 96.6%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
22,136
$450
$4,118
$3,739
$13,290
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 13.8%GIA | 1ct | Round | L | SI2 | Very Good
From $891
Compare at $1,034
Save 38.5%GIA | 1ct | Round | L | SI2 | Very Good
From $987
Compare at $1,606
Save 15%IGI | 1ct | Round | K | SI1 | Excellent
From $1,005
Compare at $1,182
Save 20.2%IGI | 1.01ct | Round | K | SI1 | Excellent
From $1,010
Compare at $1,266
Save 13.6%GIA | 1ct | Round | L | SI2 | Ideal
From $1,013
Compare at $1,172
Save 29.1%GIA | 1ct | Round | L | SI2 | Excellent
From $1,016
Compare at $1,433
Save 29.1%GIA | 1.04ct | Round | L | SI2 | Ideal
From $1,056
Compare at $1,489
Save 31%GIA | 1.01ct | Round | L | SI2 | Excellent
From $1,077
Compare at $1,562
Save 19.3%IGI | 1.01ct | Round | K | SI1 | Excellent
From $1,105
Compare at $1,369
Save 28.7%GIA | 1ct | Round | L | SI2 | Very Good
From $1,106
Compare at $1,550
Save 38.5%GIA | 1.01ct | Round | L | SI2 | Very Good
From $1,107
Compare at $1,800
Save 29%IGI | 1.01ct | Round | K | SI1 | Excellent
From $1,110
Compare at $1,563
Save 29.4%GIA | 1.03ct | Round | L | SI2 | Excellent
From $1,112
Compare at $1,575
Save 25.8%GIA | 1ct | Round | L | SI2 | Good
From $1,113
Compare at $1,501
Save 16.5%IGI | 1.01ct | Round | K | SI1 | Ideal
From $1,115
Compare at $1,336
Save 27.8%GIA | 1ct | Round | L | SI1 | Very Good
From $1,116
Compare at $1,545
Save 32.5%GIA | 1ct | Round | L | SI1 | Very Good
From $1,120
Compare at $1,660
Save 29%IGI | 1.05ct | Round | K | SI1 | Excellent
From $1,124
Compare at $1,583
Save 16.6%IGI | 1ct | Round | K | SI1 | Very Good
From $1,130
Compare at $1,355
Save 16.1%GIA | 1ct | Round | L | SI2 | Very Good
From $1,139
Compare at $1,358
Save 42.2%GIA | 1ct | Round | L | SI2 | Ideal
From $1,140
Compare at $1,973
Save 19.2%IGI | 1ct | Round | J | SI1 | Very Good
From $1,140
Compare at $1,412
Save 29%IGI | 1.01ct | Round | K | SI1 | Excellent
From $1,143
Compare at $1,609
Save 23.1%GIA | 1.01ct | Round | L | SI2 | Ideal
From $1,155
Compare at $1,502
Save 32.7%GIA | 1ct | Round | K | SI1 | Very Good
From $1,160
Compare at $1,723
Save 16.1%GIA | 1ct | Round | L | SI1 | Very Good
From $1,166
Compare at $1,390
Save 27.6%IGI | 1.02ct | Round | K | VS2 | Excellent
From $1,171
Compare at $1,617
Save 16.1%GIA | 1ct | Round | L | SI2 | Good
From $1,172
Compare at $1,396
Save 16.1%GIA | 1ct | Round | L | SI2 | Good
From $1,172
Compare at $1,396
Save 41.3%GIA | 1.1ct | Round | L | SI2 | Ideal
From $1,175
Compare at $2,002
Save 24.3%GIA | 1ct | Round | L | VS2 | Good
From $1,178
Compare at $1,556
Save 20%GIA | 1ct | Round | K | SI2 | Ideal
From $1,178
Compare at $1,472
Save 36.9%GIA | 1ct | Round | L | SI1 | Very Good
From $1,178
Compare at $1,868
Save 29.1%GIA | 1.03ct | Round | L | SI1 | Excellent
From $1,179
Compare at $1,662
Save 27.9%GIA | 1ct | Round | K | SI2 | Ideal
From $1,179
Compare at $1,635
Save 27.5%IGI | 1.08ct | Round | K | SI1 | Excellent
From $1,187
Compare at $1,638
GIA | 1ct | Round | L | SI2 | Excellent
From $1,189
Compare at $1,278
Save 14.6%IGI | 1ct | Round | K | SI1 | Ideal
From $1,190
Compare at $1,393
Save 27.9%GIA | 1.01ct | Round | K | SI2 | Excellent
From $1,191
Compare at $1,651
Save 18.9%IGI | 1.01ct | Round | J | SI2 | Ideal
From $1,192
Compare at $1,470
IGI | 1ct | Round | K | VS1 | Very Good
From $1,195
Compare at $1,265
Save 19.1%IGI | 1ct | Round | K | SI1 | Excellent
From $1,195
Compare at $1,477
Save 22%IGI | 1.01ct | Round | K | VS2 | Excellent
From $1,195
Compare at $1,532
Save 21.9%IGI | 1ct | Round | J | SI1 | Very Good
From $1,195
Compare at $1,530
Save 27.5%IGI | 1.01ct | Round | K | VS2 | Very Good
From $1,198
Compare at $1,653
Save 25.6%GIA | 1ct | Round | K | SI1 | Good
From $1,200
Compare at $1,613
Save 37.8%IGI | 1.04ct | Round | K | VS2 | Very Good
From $1,201
Compare at $1,932
Save 25.8%GIA | 1ct | Round | L | SI1 | Good
From $1,202
Compare at $1,619
GIA | 1.01ct | Round | L | SI1 | Good
From $1,202
Compare at $1,264
Save 27.5%IGI | 1.01ct | Round | K | VS2 | Very Good
From $1,202
Compare at $1,659
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 $12,840 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 $3,739 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 22,136 comparable stones in this segment. Prices start around $450 and go up to $13,290.
Based on the latest market data, the average asking price is about $4,118 with a median around $3,739.
The observed spread is roughly $12,840 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 $4,118. The median price is $3,739, 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 $12,840 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.