2.5 Carat Cushion Natural Diamond Prices Comparison
As of October 2026, 2.5 carat cushion natural diamonds in the 2.50–2.74 carat benchmark range usually range from $1,167 to $62,716, with an average price of $23,502.In the last month, prices for these diamonds are down 0.5%.Compare 795 verified listings across 11 retailers tracked by CaratRadar.
2.5 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 795 verified 2.5-carat cushion natural diamonds in the 2.50–2.74 carat benchmark range, listed across 11 online retailers. Prices in this segment range from $1,167 to $62,716, with an average asking price of $23,502 and a median of $23,030.
The price spread of $61,549 (98.1% 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.
795 diamonds tracked in the 2.50–2.74 carat benchmark
Price range: $1,167 to $62,716
Average price: $23,502
Median price: $23,030
Available across 11 retailers
Savings potential: up to 98.1%
Price Range Overview
As of Oct 14, 2026Real market range for this carat, shape, and diamond type.
795
$1,167
$23,502
$23,030
$62,716
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 22.7%GIA | 2.51ct | Cushion | L | SI2 | Excellent
From $4,938
Compare at $6,386
Save 27.7%GIA | 2.5ct | Cushion | L | SI1 | Excellent
From $5,225
Compare at $7,223
Save 16.3%IGI | 2.5ct | Cushion | J | SI1 | Very Good
From $5,330
Compare at $6,370
IGI | 2.52ct | Cushion | K | SI2 | Very Good
From $5,394
Compare at $5,465
Save 12.1%IGI | 2.5ct | Cushion | H | SI2 | Excellent
From $5,554
Compare at $6,320
Save 11.8%IGI | 2.51ct | Cushion | F | SI2 | Ideal
From $5,832
Compare at $6,610
Save 23.1%GIA | 2.52ct | Cushion | K | SI1 | Excellent
From $5,978
Compare at $7,777
Save 28.2%GIA | 2.52ct | Cushion | K | SI1 | Very Good
From $6,085
Compare at $8,470
Save 22.7%GIA | 2.61ct | Cushion | K | SI1 | Excellent
From $6,384
Compare at $8,259
GIA | 2.5ct | Cushion | K | SI2 | Ideal
From $6,408
Compare at $6,919
Save 23.1%GIA | 2.5ct | Cushion | K | SI1 | Very Good
From $6,605
Compare at $8,592
Save 16.8%GIA | 2.51ct | Cushion | L | VVS2 | Excellent
From $6,930
Compare at $8,326
GIA | 2.52ct | Cushion | K | SI2 | Excellent
From $7,010
Compare at $7,467
IGI | 2.5ct | Cushion | F | SI2 | Excellent
From $7,195
Compare at $7,294
GIA | 2.51ct | Cushion | K | SI1 | Excellent
From $7,343
Compare at $8,051
GIA | 2.51ct | Cushion | K | SI1 | Excellent
From $7,343
Compare at $8,051
GIA | 2.51ct | Cushion | L | SI2 | Excellent
From $7,345
Compare at $7,823
GIA | 2.5ct | Cushion | L | VS1 | Excellent
From $7,522
Compare at $8,013
Save 21.8%GIA | 2.51ct | Cushion | I | SI1 | Very Good
From $7,530
Compare at $9,631
Save 15.4%GIA | 2.51ct | Cushion | L | SI2 | Excellent
From $7,640
Compare at $9,031
Save 13.6%GIA | 2.52ct | Cushion | K | SI1 | Ideal
From $7,873
Compare at $9,114
GIA | 2.52ct | Cushion | K | VS2 | Excellent
From $7,890
Compare at $7,890
Save 32.5%GIA | 2.5ct | Cushion | I | SI2 | Very Good
From $8,197
Compare at $12,140
Save 14.3%HRD | 2.7ct | Cushion | J | VVS2 | Very Good
From $8,412
Compare at $9,816
Save 15%GIA | 2.52ct | Cushion | K | VS2 | Excellent
From $8,447
Compare at $9,938
Save 33.4%GIA | 2.52ct | Cushion | J | VS2 | Good
From $8,462
Compare at $12,710
Save 13.7%GIA | 2.52ct | Cushion | J | VS2 | Excellent
From $8,508
Compare at $9,863
Save 14.3%HRD | 2.5ct | Cushion | E | SI1 | Excellent
From $8,554
Compare at $9,984
GIA | 2.5ct | Cushion | K | SI2 | Excellent
From $8,568
Compare at $9,059
Save 25.8%GIA | 2.57ct | Cushion | L | VS2 | Excellent
From $8,725
Compare at $11,760
Save 37.1%GIA | 2.51ct | Cushion | J | SI1 | Excellent
From $8,814
Compare at $14,017
Save 38.3%GIA | 2.67ct | Cushion | K | SI2 | Very Good
From $8,987
Compare at $14,570
Save 14.4%GIA | 2.7ct | Cushion | J | SI1 | Excellent
From $9,147
Compare at $10,683
Save 15.4%GIA | 2.51ct | Cushion | K | SI2 | Very Good
From $9,185
Compare at $10,853
Save 25.9%GIA | 2.5ct | Cushion | L | SI2 | Excellent
From $9,260
Compare at $12,503
Save 13.3%GIA | 2.5ct | Cushion | J | SI2 | Good
From $9,338
Compare at $10,777
GIA | 2.51ct | Cushion | J | SI2 | Excellent
From $9,393
Compare at $10,375
Save 11.5%GIA | 2.51ct | Cushion | L | VVS1 | Excellent
From $9,437
Compare at $10,662
GIA | 2.73ct | Cushion | L | VVS1 | Ideal
From $9,454
Compare at $9,946
Save 23.5%GIA | 2.52ct | Cushion | L | VS2 | Excellent
From $9,502
Compare at $12,414
Save 13.4%GIA | 2.51ct | Cushion | J | SI2 | Good
From $9,574
Compare at $11,053
Save 30%GIA | 2.51ct | Cushion | K | SI2 | Excellent
From $9,625
Compare at $13,742
Save 29.5%GIA | 2.51ct | Cushion | F | SI2 | Ideal
From $9,709
Compare at $13,767
GIA | 2.51ct | Cushion | K | SI1 | Excellent
From $9,758
Compare at $10,270
Save 14.5%GIA | 2.52ct | Cushion | K | VS1 | Very Good
From $9,807
Compare at $11,466
Save 20.9%GIA | 2.5ct | Cushion | J | VS1 | Excellent
From $9,850
Compare at $12,456
Save 13.4%GIA | 2.5ct | Cushion | J | SI2 | Ideal
From $9,935
Compare at $11,475
Save 36.9%GIA | 2.51ct | Cushion | J | SI1 | Good
From $9,965
Compare at $15,792
Save 30.1%GIA | 2.51ct | Cushion | G | SI1 | Good
From $9,981
Compare at $14,286
GIA | 2.55ct | Cushion | K | SI1 | Excellent
From $10,018
Compare at $10,020
Entry pricing in this benchmark range 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 $61,549 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 $23,030 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 795 comparable stones in the 2.50–2.74 carat benchmark range. Prices start around $1,167 and go up to $62,716.
Based on the latest market data, the average asking price is about $23,502 with a median around $23,030.
The observed spread is roughly $61,549 across tracked listings, which is about 98.1% from highest to lowest offer in the 2.50–2.74 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 $23,502. The median price is $23,030, 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 $61,549 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 2.50–2.74 carat Cushion diamond benchmark.