2.5 Carat Round Natural Diamond Prices Comparison
As of October 2026, 2.5 carat round natural diamonds in the 2.50–2.74 carat benchmark range usually range from $716 to $88,955, with an average price of $28,074.In the last month, prices for these diamonds are down 1.1%.Compare 2,365 verified listings across 13 retailers tracked by CaratRadar.
2.5 Carat Round Natural Diamond Market Overview
CaratRadar currently tracks 2,365 verified 2.5-carat round natural diamonds in the 2.50–2.74 carat benchmark range, listed across 13 online retailers. Prices in this segment range from $716 to $88,954, with an average asking price of $28,074 and a median of $26,528.
The price spread of $88,239 (99.2% 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.
2,365 diamonds tracked in the 2.50–2.74 carat benchmark
Price range: $716 to $88,954
Average price: $28,074
Median price: $26,528
Available across 13 retailers
Savings potential: up to 99.2%
Price Range Overview
As of Oct 15, 2026Real market range for this carat, shape, and diamond type.
2,365
$716
$28,074
$26,528
$88,955
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 22.4%IGI | 2.51ct | Round | M | SI2 | Excellent
From $2,309
Compare at $2,975
Save 13.7%IGI | 2.5ct | Round | L | SI2 | Good
From $2,685
Compare at $3,111
IGI | 2.51ct | Round | L | I1 | Good
From $2,744
Compare at $2,848
Save 23.1%IGI | 2.5ct | Round | M | SI2 | Ideal
From $3,266
Compare at $4,245
Save 23.7%IGI | 2.63ct | Round | L | SI2 | Excellent
From $3,726
Compare at $4,885
Save 23.7%IGI | 2.55ct | Round | M | SI2 | Excellent
From $3,729
Compare at $4,889
Save 20.2%IGI | 2.5ct | Round | I | SI2 | Good
From $4,883
Compare at $6,120
Save 12.2%IGI | 2.51ct | Round | K | SI2 | Ideal
From $5,109
Compare at $5,821
Save 24.4%IGI | 2.7ct | Round | K | SI2 | Excellent
From $5,117
Compare at $6,771
Save 24.4%IGI | 2.5ct | Round | J | SI2 | Excellent
From $5,215
Compare at $6,899
Save 24.4%IGI | 2.59ct | Round | K | SI2 | Excellent
From $5,272
Compare at $6,975
Save 12.3%IGI | 2.71ct | Round | L | SI2 | Excellent
From $5,283
Compare at $6,022
Save 24.4%IGI | 2.5ct | Round | L | SI2 | Excellent
From $5,324
Compare at $7,044
IGI | 2.65ct | Round | K | SI2 | Excellent
From $5,621
Compare at $5,750
Save 12.3%IGI | 2.74ct | Round | K | I1 | Excellent
From $5,966
Compare at $6,799
Save 23.7%HRD | 2.51ct | Round | I | SI2 | Good
From $6,282
Compare at $8,232
Save 12.3%IGI | 2.5ct | Round | L | SI2 | Ideal
From $6,543
Compare at $7,459
Save 24.4%IGI | 2.63ct | Round | M | VS2 | Excellent
From $6,674
Compare at $8,830
Save 38.6%GIA | 2.51ct | Round | L | SI2 | Ideal
From $6,885
Compare at $11,213
Save 10.5%GIA | 2.5ct | Round | L | SI2 | Excellent
From $6,893
Compare at $7,700
HRD | 2.51ct | Round | H | I1 | Ideal
From $7,014
Compare at $7,124
Save 12.8%GIA | 2.69ct | Round | L | SI2 | Excellent
From $7,449
Compare at $8,542
Save 16.8%GIA | 2.5ct | Round | L | SI1 | Very Good
From $7,677
Compare at $9,224
IGI | 2.5ct | Round | G | SI2 | Excellent
From $7,800
Compare at $7,908
Save 25.1%IGI | 2.51ct | Round | M | VS2 | Ideal
From $7,868
Compare at $10,503
Save 38.6%GIA | 2.5ct | Round | L | SI2 | Very Good
From $7,953
Compare at $12,952
Save 13.1%GIA | 2.5ct | Round | L | SI1 | Very Good
From $7,995
Compare at $9,195
Save 25.1%IGI | 2.5ct | Round | K | VS1 | Excellent
From $7,995
Compare at $10,675
Save 20.2%GIA | 2.51ct | Round | K | SI2 | Excellent
From $8,005
Compare at $10,026
Save 13.5%IGI | 2.5ct | Round | L | VS1 | Ideal
From $8,048
Compare at $9,305
Save 25.1%IGI | 2.5ct | Round | L | SI1 | Ideal
From $8,155
Compare at $10,887
Save 25.1%IGI | 2.7ct | Round | J | SI2 | Ideal
From $8,211
Compare at $10,962
GIA | 2.5ct | Round | K | SI2 | Very Good
From $8,333
Compare at $8,854
Save 14.3%IGI | 2.5ct | Round | K | VVS2 | Excellent
From $8,423
Compare at $9,829
Save 15.9%GIA | 2.5ct | Round | L | VS2 | Very Good
From $8,448
Compare at $10,047
Save 23.3%GIA | 2.51ct | Round | M | SI2 | Excellent
From $8,453
Compare at $11,015
IGI | 2.5ct | Round | I | SI1 | Very Good
From $8,460
IGI | 2.55ct | Round | K | SI1 | Excellent
From $8,587
Compare at $9,178
Save 38.6%GIA | 2.5ct | Round | L | SI1 | Excellent
From $8,679
Compare at $14,135
Save 11.4%GIA | 2.55ct | Round | L | VS2 | Ideal
From $8,701
Compare at $9,816
GIA | 2.51ct | Round | K | SI2 | Very Good
From $8,748
Compare at $8,855
Save 25.1%EGL | 2.71ct | Round | K | VS2 | Ideal
From $8,776
Compare at $11,717
Save 25.1%IGI | 2.5ct | Round | M | VS1 | Ideal
From $8,792
Compare at $11,738
Save 16.8%GIA | 2.5ct | Round | K | SI2 | Excellent
From $8,802
Compare at $10,576
Save 25.8%IGI | 2.7ct | Round | L | VS2 | Excellent
From $8,819
Compare at $11,880
Save 25.8%IGI | 2.51ct | Round | K | VS1 | Excellent
From $8,842
Compare at $11,912
Save 25.1%GIA | 2.52ct | Round | M | SI2 | Ideal
From $8,848
Compare at $11,813
Save 25.1%GIA | 2.74ct | Round | L | SI2 | Excellent
From $8,863
Compare at $11,834
Save 13.3%HRD | 2.5ct | Round | J | SI1 | Very Good
From $8,868
Compare at $10,232
IGI | 2.73ct | Round | H | SI2 | Ideal
From $8,900
Compare at $8,941
Entry pricing in this benchmark range starts around $716.
What to Know When Shopping for 2.5 Carat Round Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $88,239 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 $26,528 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 2,365 comparable stones in the 2.50–2.74 carat benchmark range. Prices start around $716 and go up to $88,954.
Based on the latest market data, the average asking price is about $28,074 with a median around $26,528.
The observed spread is roughly $88,239 across tracked listings, which is about 99.2% 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 $28,074. The median price is $26,528, 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 13 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 $88,239 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
Explore adjacent carat ranges and shapes to compare market shifts.
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Tracking Natural inventory for the 2.50–2.74 carat Round diamond benchmark.