1 Carat Cushion Natural Diamond Prices Comparison
As of October 2026, 1 carat cushion natural diamonds in the 1.00–1.24 carat benchmark range usually range from $504 to $25,215, with an average price of $2,972.In the last month, prices for these diamonds are down 0.9%.Compare 6,924 verified listings across 15 retailers tracked by CaratRadar.
1 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 6,924 verified 1-carat cushion natural diamonds in the 1.00–1.24 carat benchmark range, listed across 15 online retailers. Prices in this segment range from $504 to $25,215, with an average asking price of $2,972 and a median of $2,723.
The price spread of $24,711 (98.0% 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 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.
6,924 diamonds tracked in the 1.00–1.24 carat benchmark
Price range: $504 to $25,215
Average price: $2,972
Median price: $2,723
Available across 15 retailers
Savings potential: up to 98.0%
Price Range Overview
As of Oct 15, 2026Real market range for this carat, shape, and diamond type.
6,924
$504
$2,972
$2,723
$25,215
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.
IGI | 1.05ct | Cushion | I | I1 | Excellent
From $774
Compare at $782
GIA | 1.02ct | Cushion | L | SI1 | Very Good
From $795
Compare at $812
IGI | 1ct | Cushion | H | I1 | Very Good
From $802
Compare at $811
IGI | 1ct | Cushion | H | I1 | Ideal
From $802
Compare at $811
IGI | 1ct | Cushion | H | I1 | Excellent
From $802
Compare at $811
IGI | 1ct | Cushion | J | SI2 | Excellent
From $811
Compare at $822
IGI | 1ct | Cushion | K | SI1 | Excellent
From $838
Compare at $851
Save 16.6%GIA | 1.12ct | Cushion | L | SI1 | Good
From $842
Compare at $1,010
Save 16.6%GIA | 1ct | Cushion | L | SI1 | Very Good
From $842
Compare at $1,010
IGI | 1.01ct | Cushion | H | I1 | Ideal
From $846
Compare at $860
IGI | 1.01ct | Cushion | H | I1 | Ideal
From $846
Compare at $860
IGI | 1.02ct | Cushion | H | I1 | Ideal
From $854
Compare at $868
Save 34.4%GIA | 1.01ct | Cushion | K | SI1 | Excellent
From $862
Compare at $1,314
IGI | 1.01ct | Cushion | G | SI2 | Excellent
From $867
Compare at $961
Save 13.4%GIA | 1.01ct | Cushion | K | SI1 | Excellent
From $869
Compare at $1,004
Save 23.3%GIA | 1.01ct | Cushion | I | SI2 | Ideal
From $875
Compare at $1,141
IGI | 1.05ct | Cushion | H | I1 | Excellent
From $877
Compare at $894
Save 13.6%GIA | 1.01ct | Cushion | K | SI1 | Very Good
From $880
Compare at $1,018
IGI | 1.01ct | Cushion | J | SI2 | Ideal
From $881
Compare at $896
Save 37.5%GIA | 1.02ct | Cushion | K | SI1 | Very Good
From $882
Compare at $1,411
GIA | 1.01ct | Cushion | K | SI1 | Excellent
From $887
Compare at $944
Save 26.8%GIA | 1.21ct | Cushion | L | SI1 | Excellent
From $887
Compare at $1,211
GIA | 1.02ct | Cushion | K | SI1 | Good
From $890
Compare at $945
IGI | 1.07ct | Cushion | L | VVS2 | Ideal
From $899
Compare at $915
IGI | 1ct | Cushion | H | I1 | Excellent
From $903
Compare at $919
IGI | 1ct | Cushion | G | I1 | Ideal
From $904
Compare at $922
GIA | 1.01ct | Cushion | K | SI2 | Very Good
From $907
Compare at $964
IGI | 1.01ct | Cushion | I | SI2 | Ideal
From $912
Compare at $928
IGI | 1.01ct | Cushion | G | I1 | Ideal
From $913
Compare at $931
Save 34.4%GIA | 1.01ct | Cushion | J | SI1 | Excellent
From $920
Compare at $1,403
HRD | 1.01ct | Cushion | E | SI2 | Excellent
From $929
Compare at $997
Save 14.2%GIA | 1ct | Cushion | K | SI2 | Very Good
From $939
Compare at $1,094
Save 20.7%GIA | 1ct | Cushion | K | SI1 | Good
From $940
Compare at $1,185
Save 12.4%GIA | 1ct | Cushion | L | VS1 | Excellent
From $943
Compare at $1,076
IGI | 1.03ct | Cushion | H | I1 | Ideal
From $943
Compare at $995
Save 42.2%GIA | 1.01ct | Cushion | K | SI1 | Ideal
From $944
Compare at $1,633
GIA | 1.01ct | Cushion | K | SI1 | Excellent
From $944
Compare at $1,002
GIA | 1.2ct | Cushion | K | SI1 | Excellent
From $945
Compare at $1,026
IGI | 1ct | Cushion | H | I1 | Very Good
From $946
Compare at $966
IGI | 1.01ct | Cushion | K | VS1 | Ideal
From $949
Compare at $1,002
IGI | 1.01ct | Cushion | G | I1 | Excellent
From $952
Compare at $973
Save 29.8%GIA | 1.01ct | Cushion | I | SI2 | Very Good
From $953
Compare at $1,358
GIA | 1ct | Cushion | K | SI1 | Excellent
From $956
Compare at $977
GIA | 1ct | Cushion | K | SI1 | Excellent
From $956
Compare at $971
GIA | 1ct | Cushion | K | SI1 | Excellent
From $956
Compare at $971
Save 26.8%GIA | 1.01ct | Cushion | I | SI2 | Ideal
From $960
Compare at $1,311
Save 34.4%GIA | 1.03ct | Cushion | H | SI2 | Excellent
From $961
Compare at $1,465
Save 38.5%GIA | 1.2ct | Cushion | K | SI2 | Excellent
From $965
Compare at $1,570
IGI | 1ct | Cushion | F | SI2 | Good
From $967
Compare at $1,009
Save 10.4%IGI | 1.02ct | Cushion | G | SI2 | Ideal
From $968
Compare at $1,080
Entry pricing in this benchmark range starts around $504.
What to Know When Shopping for 1 Carat Cushion Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $24,711 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 $2,723 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.
- Cushion cuts come in standard and modified brilliant varieties. Modified brilliants tend to show more fire, while standard cushions have broader facets.
Frequently Asked Questions
We currently track 6,924 comparable stones in the 1.00–1.24 carat benchmark range. Prices start around $504 and go up to $25,215.
Based on the latest market data, the average asking price is about $2,972 with a median around $2,723.
The observed spread is roughly $24,711 across tracked listings, which is about 98.0% 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 $2,972. The median price is $2,723, 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 15 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 $24,711 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 Cushion diamond benchmark.