1 Carat Radiant Natural Diamond Prices Comparison
As of October 2026, 1 carat radiant natural diamonds in the 1.00–1.24 carat benchmark range usually range from $585 to $63,084, with an average price of $3,377.In the last month, prices for these diamonds are down 0.6%.Compare 3,940 verified listings across 14 retailers tracked by CaratRadar.
1 Carat Radiant Natural Diamond Market Overview
CaratRadar currently tracks 3,940 verified 1-carat radiant natural diamonds in the 1.00–1.24 carat benchmark range, listed across 14 online retailers. Prices in this segment range from $585 to $63,084, with an average asking price of $3,377 and a median of $3,159.
The price spread of $62,499 (99.1% 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 use the same benchmark range throughout the page and 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.
3,940 diamonds tracked in the 1.00–1.24 carat benchmark
Price range: $585 to $63,084
Average price: $3,377
Median price: $3,159
Available across 14 retailers
Savings potential: up to 99.1%
Price Range Overview
As of Oct 14, 2026Real market range for this carat, shape, and diamond type.
3,940
$585
$3,377
$3,159
$63,084
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 15.3%HRD | 1ct | Radiant | G | SI2 | Ideal
From $677
Compare at $799
Save 11.9%IGI | 1ct | Radiant | K | SI1 | Very Good
From $712
Compare at $808
Save 21.2%GIA | 1.01ct | Radiant | L | SI2 | Ideal
From $753
Compare at $956
Save 21.3%GIA | 1.01ct | Radiant | L | SI2 | Excellent
From $781
Compare at $992
Save 21.3%GIA | 1.02ct | Radiant | L | SI2 | Ideal
From $788
Compare at $1,002
Save 21.4%GIA | 1ct | Radiant | L | SI2 | Ideal
From $801
Compare at $1,018
Save 21.4%GIA | 1ct | Radiant | L | SI2 | Ideal
From $801
Compare at $1,018
Save 21.3%GIA | 1.01ct | Radiant | L | SI2 | Ideal
From $809
Compare at $1,029
Save 21.3%GIA | 1ct | Radiant | L | SI1 | Excellent
From $813
Compare at $1,034
Save 21.3%GIA | 1.02ct | Radiant | L | SI2 | Ideal
From $817
Compare at $1,039
Save 21.3%GIA | 1.01ct | Radiant | L | SI1 | Excellent
From $821
Compare at $1,044
Save 19.2%GIA | 1ct | Radiant | L | SI2 | Ideal
From $829
Compare at $1,026
Save 19.3%GIA | 1.03ct | Radiant | L | SI2 | Excellent
From $853
Compare at $1,057
Save 19.3%GIA | 1.02ct | Radiant | L | SI1 | Ideal
From $858
Compare at $1,063
GIA | 1ct | Radiant | L | VVS2 | Good
From $874
Compare at $953
Save 19.3%GIA | 1.02ct | Radiant | K | SI2 | Ideal
From $876
Compare at $1,086
Save 40.6%GIA | 1.01ct | Radiant | L | SI2 | Very Good
From $877
Compare at $1,477
Save 19.4%GIA | 1ct | Radiant | L | SI2 | Excellent
From $884
Compare at $1,096
Save 12.3%HRD | 1ct | Radiant | I | SI2 | Excellent
From $886
Compare at $1,010
Save 10.4%IGI | 1.06ct | Radiant | I | SI2 | Ideal
From $887
Compare at $990
Save 19.4%GIA | 1.01ct | Radiant | K | SI2 | Ideal
From $900
Compare at $1,116
Save 19.5%GIA | 1.02ct | Radiant | K | SI2 | Ideal
From $908
Compare at $1,127
Save 19.5%GIA | 1.02ct | Radiant | K | SI2 | Ideal
From $908
Compare at $1,127
Save 19.4%GIA | 1.01ct | Radiant | L | SI1 | Very Good
From $909
Compare at $1,128
Save 27.5%GIA | 1.01ct | Radiant | K | I1 | Ideal
From $924
Compare at $1,275
Save 12.4%IGI | 1.01ct | Radiant | L | SI1 | Excellent
From $924
Compare at $1,055
Save 19.5%GIA | 1.01ct | Radiant | K | SI2 | Ideal
From $932
Compare at $1,157
Save 19.5%GIA | 1.01ct | Radiant | K | SI2 | Ideal
From $932
Compare at $1,157
GIA | 1ct | Radiant | VS2
From $948
Compare at $1,027
Save 34.4%GIA | 1.01ct | Radiant | J | SI1 | Excellent
From $949
Compare at $1,447
Save 20.2%IGI | 1.01ct | Radiant | K | VS2 | Very Good
From $961
Compare at $1,205
Save 19.6%GIA | 1.01ct | Radiant | L | VS2 | Ideal
From $964
Compare at $1,198
Save 13.3%GIA | 1.02ct | Radiant | FANCY | VS2
From $966
Compare at $1,114
Save 15.2%GIA | 1ct | Radiant | L | SI1 | Ideal
From $972
Compare at $1,146
Save 19.5%GIA | 1.02ct | Radiant | K | SI2 | Very Good
From $974
Compare at $1,210
Save 19.5%GIA | 1.02ct | Radiant | K | SI2 | Ideal
From $974
Compare at $1,210
Save 19.5%GIA | 1.1ct | Radiant | K | SI2 | Ideal
From $978
Compare at $1,215
Save 34.4%GIA | 1.03ct | Radiant | H | SI2 | Very Good
From $986
Compare at $1,503
Save 20%GIA | 1.01ct | Radiant | I | SI2 | Very Good
From $994
Compare at $1,242
Save 20%GIA | 1.01ct | Radiant | K | SI2 | Excellent
From $997
Compare at $1,246
Save 20%GIA | 1.01ct | Radiant | L | SI1 | Ideal
From $997
Compare at $1,246
Save 20%GIA | 1.01ct | Radiant | K | SI2 | Ideal
From $997
Compare at $1,246
IGI | 1ct | Radiant | J | SI2 | Ideal
From $1,005
Compare at $1,087
Save 20%GIA | 1.02ct | Radiant | L | SI1 | Very Good
From $1,006
Compare at $1,258
Save 17%IGI | 1.03ct | Radiant | L | VS2 | Excellent
From $1,012
Compare at $1,219
Save 20.2%GIA | 1.01ct | Radiant | K | SI1 | Ideal
From $1,014
Compare at $1,270
Save 20.2%GIA | 1.01ct | Radiant | K | SI1 | Ideal
From $1,014
Compare at $1,270
Save 20.1%GIA | 1.01ct | Radiant | K | SI1 | Ideal
From $1,014
Compare at $1,268
Save 20%GIA | 1.03ct | Radiant | K | SI2 | Ideal
From $1,016
Compare at $1,270
Save 20%GIA | 1.01ct | Radiant | J | SI2 | Ideal
From $1,019
Compare at $1,274
Entry pricing in this benchmark range starts around $585.
What to Know When Shopping for 1 Carat Radiant Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $62,499 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 $3,159 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.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 3,940 comparable stones in the 1.00–1.24 carat benchmark range. Prices start around $585 and go up to $63,084.
Based on the latest market data, the average asking price is about $3,377 with a median around $3,159.
The observed spread is roughly $62,499 across tracked listings, which is about 99.1% from highest to lowest offer in the 1.00–1.24 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $3,377. The median price is $3,159, 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 14 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 $62,499 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.
Related Price Categories
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Tracking Natural inventory for the 1.00–1.24 carat Radiant diamond benchmark.