2.5 Carat Cushion Natural Diamond Prices Comparison
As of May 2026, 2.5 carat cushion natural diamonds usually range from $1,167 to $54,129, with an average price of $24,300.In the last month, prices for these diamonds are up 1.2%.Compare 625 verified listings across 10 retailers tracked by CaratRadar.
2.5 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 625 verified 2.5-carat cushion natural diamonds listed across 10 online retailers. Prices in this segment range from $1,167 to $54,129, with an average asking price of $24,300 and a median of $23,891.
The price spread of $52,963 (97.8% 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.
625 diamonds tracked in this segment
Price range: $1,167 to $54,129
Average price: $24,300
Median price: $23,891
Available across 10 retailers
Savings potential: up to 97.8%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
625
$1,167
$24,300
$23,891
$54,129
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 22.4%GIA | 2.51ct | Cushion | L | SI2 | Excellent
From $5,446
Compare at $7,021
Save 38.7%GIA | 2.52ct | Cushion | K | VS2 | Ideal
From $5,594
Compare at $9,121
HRD | 2.51ct | Cushion | J | SI1 | Excellent
From $5,720
Compare at $5,790
Save 39.3%GIA | 2.55ct | Cushion | K | VS2 | Excellent
From $6,311
Compare at $10,396
Save 40.4%GIA | 2.5ct | Cushion | J | VS1 | Very Good
From $6,443
Compare at $10,812
Save 37.4%GIA | 2.5ct | Cushion | K | SI1 | Very Good
From $6,605
Compare at $10,559
Save 22.3%GIA | 2.52ct | Cushion | K | SI1 | Excellent
From $6,803
Compare at $8,761
Save 14%IGI | 2.5ct | Cushion | H | SI2 | Excellent
From $7,004
Compare at $8,140
Save 21.7%GIA | 2.52ct | Cushion | K | SI1 | Very Good
From $7,055
Compare at $9,011
Save 21.7%GIA | 2.53ct | Cushion | K | SI1 | Excellent
From $7,245
Compare at $9,256
Save 38.1%GIA | 2.51ct | Cushion | J | SI2 | Very Good
From $7,295
Compare at $11,781
Save 21.8%GIA | 2.52ct | Cushion | K | SI1 | Very Good
From $7,375
Compare at $9,428
Save 37.5%GIA | 2.51ct | Cushion | K | SI1 | Excellent
From $7,505
Compare at $12,008
Save 37.5%GIA | 2.51ct | Cushion | K | SI1 | Excellent
From $7,505
Compare at $12,008
Save 40.4%GIA | 2.5ct | Cushion | J | SI1 | Very Good
From $7,767
Compare at $13,037
Save 13.6%GIA | 2.51ct | Cushion | K | VS2 | Very Good
From $7,985
Compare at $9,243
Save 26.4%GIA | 2.52ct | Cushion | J | SI2 | Excellent
From $8,047
Compare at $10,930
HRD | 2.51ct | Cushion | I | VS1 | Ideal
From $8,260
Compare at $8,414
Save 26.3%GIA | 2.51ct | Cushion | J | SI2 | Excellent
From $8,431
Compare at $11,440
Save 41%GIA | 2.51ct | Cushion | J | VS1 | Excellent
From $8,614
Compare at $14,612
Save 19.4%GIA | 2.51ct | Cushion | L | SI2 | Excellent
From $8,769
Compare at $10,880
Save 27%GIA | 2.51ct | Cushion | L | VVS2 | Excellent
From $8,788
Compare at $12,034
Save 41.5%GIA | 2.5ct | Cushion | J | VS1 | Very Good
From $8,815
Compare at $15,080
Save 27%GIA | 2.51ct | Cushion | I | SI2 | Excellent
From $8,886
Compare at $12,166
Save 21.6%GIA | 2.51ct | Cushion | I | SI1 | Very Good
From $9,005
Compare at $11,482
Save 26.9%GIA | 2.5ct | Cushion | L | VS1 | Excellent
From $9,053
Compare at $12,390
Save 34.9%GIA | 2.51ct | Cushion | J | SI1 | Good
From $9,272
Compare at $14,251
Save 13%GIA | 2.5ct | Cushion | I | SI1 | Good
From $9,323
Compare at $10,718
Save 20.8%GIA | 2.51ct | Cushion | J | SI1 | Very Good
From $9,390
Compare at $11,854
Save 23.5%GIA | 2.52ct | Cushion | L | VS2 | Excellent
From $9,502
Compare at $12,415
Save 37.2%GIA | 2.5ct | Cushion | L | SI2 | Excellent
From $9,604
Compare at $15,285
Save 26%GIA | 2.51ct | Cushion | L | SI2 | Excellent
From $9,625
Compare at $13,010
Save 21.4%GIA | 2.51ct | Cushion | K | SI2 | Excellent
From $9,625
Compare at $12,239
Save 26%GIA | 2.5ct | Cushion | K | VS2 | Excellent
From $9,771
Compare at $13,204
Save 26%GIA | 2.5ct | Cushion | I | SI2 | Ideal
From $9,773
Compare at $13,206
GIA | 2.5ct | Cushion | L | VS2 | Excellent
From $9,859
Compare at $10,356
Save 26%GIA | 2.52ct | Cushion | J | VS2 | Excellent
From $9,864
Compare at $13,327
Save 36.2%GIA | 2.5ct | Cushion | I | VVS2 | Good
From $9,885
Compare at $15,491
Save 19%GIA | 2.51ct | Cushion | I | SI1 | Good
From $9,989
Compare at $12,327
Save 20.8%GIA | 2.51ct | Cushion | J | SI1 | Excellent
From $10,025
Compare at $12,661
Save 19%GIA | 2.57ct | Cushion | J | SI1 | Excellent
From $10,057
Compare at $12,410
Save 31.8%GIA | 2.6ct | Cushion | I | SI2 | Excellent
From $10,089
Compare at $14,803
Save 21.8%GIA | 2.56ct | Cushion | J | SI1 | Excellent
From $10,304
Compare at $13,174
Save 39.8%GIA | 2.5ct | Cushion | J | SI1 | Excellent
From $10,307
Compare at $17,108
Save 13.2%GIA | 2.5ct | Cushion | L | SI1 | Excellent
From $10,318
Compare at $11,885
Save 27%GIA | 2.5ct | Cushion | J | VS1 | Excellent
From $10,459
Compare at $14,331
Save 27%GIA | 2.5ct | Cushion | K | VVS2 | Excellent
From $10,505
Compare at $14,393
Save 36.7%GIA | 2.51ct | Cushion | K | SI1 | Excellent
From $10,650
Compare at $16,833
Save 21.8%GIA | 2.51ct | Cushion | K | VS2 | Excellent
From $10,716
Compare at $13,697
Save 37.1%GIA | 2.51ct | Cushion | J | VS1 | Excellent
From $10,836
Compare at $17,221
Entry pricing in this category starts around $1,167.
What to Know When Shopping for 2.5 Carat Cushion Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $52,963 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 $23,891 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 625 comparable stones in this segment. Prices start around $1,167 and go up to $54,129.
Based on the latest market data, the average asking price is about $24,300 with a median around $23,891.
The observed spread is roughly $52,963 across tracked listings, which is about 97.8% 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 $24,300. The median price is $23,891, 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 10 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 $52,963 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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