2.5 Carat Cushion Lab Grown Diamond Prices Comparison
As of February 2026, 2.5 carat cushion lab grown diamonds usually range from $569 to $9,390, with an average price of $1,414.In the last month, prices for these diamonds are down 3.7%.Compare 1,777 verified listings across 10 retailers tracked by CaratRadar.
2.5 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,777 verified 2.5-carat cushion lab grown diamonds listed across 10 online retailers. Prices in this segment range from $569 to $9,390, with an average asking price of $1,414 and a median of $1,047.
The price spread of $8,821 (93.9% 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.
1,777 diamonds tracked in this segment
Price range: $569 to $9,390
Average price: $1,414
Median price: $1,047
Available across 10 retailers
Savings potential: up to 93.9%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,777
$569
$1,414
$1,047
$9,390
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIASave 72.5%2.46ct | Cushion | D | IF | Good
From $3,939
Compare at $14,300
GIASave 80.9%2.46ct | Cushion | D | VVS2 | Excellent
From $1,696
Compare at $8,870
GIASave 69.9%2.46ct | Cushion | E | IF | Excellent
From $3,717
Compare at $12,340
GIASave 84.4%2.46ct | Cushion | D | VVS1 | Good
From $1,202
Compare at $7,720
IGISave 73.3%2.46ct | Cushion | H | VVS2 | Ideal
From $588
Compare at $2,200
IGISave 61.9%2.46ct | Cushion | F | VS2 | Very Good
From $679
Compare at $1,784
IGISave 81.9%2.46ct | Cushion | F | VVS2 | Very Good
From $641
Compare at $3,540
IGISave 32%2.46ct | Cushion | D | VVS2 | Very Good
From $1,535
Compare at $2,258
IGISave 80.2%2.46ct | Cushion | D | IF | Good
From $2,220
Compare at $11,221
IGISave 78.6%2.46ct | Cushion | D | VVS1 | Ideal
From $1,468
Compare at $6,850
IGISave 49.7%2.46ct | Cushion | E | VS1 | Very Good
From $792
Compare at $1,575
IGISave 82%2.46ct | Cushion | G | VS1 | Ideal
From $686
Compare at $3,820
IGISave 82.2%2.46ct | Cushion | F | VVS1 | Very Good
From $1,000
Compare at $5,600
IGISave 71.7%2.46ct | Cushion | D | VS1 | Ideal
From $709
Compare at $2,505
IGISave 86.8%2.46ct | Cushion | D | VVS1 | Very Good
From $830
Compare at $6,278
IGISave 83.1%2.46ct | Cushion | D | VVS1 | Good
From $830
Compare at $4,910
IGISave 71.8%2.46ct | Cushion | F | VS1 | Very Good
From $864
Compare at $3,060
IGISave 24.1%2.46ct | Cushion | E | VS1 | Very Good
From $847
Compare at $1,116
IGISave 71.5%2.46ct | Cushion | E | VS1 | Ideal
From $922
Compare at $3,230
IGISave 20.3%2.46ct | Cushion | D | VVS2 | Very Good
From $1,051
Compare at $1,318
IGISave 54.1%2.46ct | Cushion | D | VS2 | Very Good
From $914
Compare at $1,991
IGISave 58.4%2.46ct | Cushion | E | VVS2 | Very Good
From $907
Compare at $2,178
IGISave 16.3%2.46ct | Cushion | E | SI1 | Very Good
From $764
Compare at $913
2.46ct | Cushion | E | VS1 | Very Good
From $922
Compare at $3,070
IGISave 54.2%2.46ct | Cushion | E | VS2 | Excellent
From $876
Compare at $1,915
IGISave 56.1%2.46ct | Cushion | E | VS1 | Excellent
From $895
Compare at $2,040
IGISave 51.7%2.46ct | Cushion | FANCY | VS2 | Excellent
From $1,842
Compare at $3,810
IGISave 83.2%2.46ct | Cushion | D | SI1 | Ideal
From $674
Compare at $4,020
IGISave 64%2.46ct | Cushion | E | VVS2 | Very Good
From $783
Compare at $2,178
IGISave 82.9%2.46ct | Cushion | E | VS1 | Ideal
From $801
Compare at $4,690
IGISave 52.4%2.46ct | Cushion | FANCY | VS2 | Very Good
From $1,038
Compare at $2,183
IGISave 75.3%2.46ct | Cushion | D | VS1 | Very Good
From $1,332
Compare at $5,400
IGISave 66.2%2.46ct | Cushion | E | VS2 | Ideal
From $672
Compare at $1,990
GIASave 44.8%2.46ct | Cushion | D | IF | Excellent
From $8,800
Compare at $15,950
GIASave 77.1%2.46ct | Cushion | D | VVS1 | Good
From $1,546
Compare at $6,740
GIASave 32.4%2.46ct | Cushion | D | VS1 | Excellent
From $1,733
Compare at $2,563
IGISave 64.2%2.46ct | Cushion | F | VS2 | Very Good
From $679
Compare at $1,897
IGISave 82.7%2.46ct | Cushion | D | VVS1 | Ideal
From $1,060
Compare at $6,140
IGISave 44.8%2.46ct | Cushion | D | VVS1 | Ideal
From $1,407
Compare at $2,548
IGISave 64.9%2.46ct | Cushion | D | VVS2 | Very Good
From $863
Compare at $2,458
IGISave 16.4%2.46ct | Cushion | E | VS2 | Very Good
From $886
Compare at $1,060
IGISave 49.3%2.46ct | Cushion | D | VS2 | Ideal
From $2,442
Compare at $4,815
IGISave 85.1%2.47ct | Cushion | E | VS2 | Ideal
From $626
Compare at $4,190
IGISave 79.1%2.47ct | Cushion | E | VVS2 | Ideal
From $717
Compare at $3,430
IGISave 69.6%2.47ct | Cushion | F | VVS2 | Ideal
From $899
Compare at $2,960
IGISave 16.9%2.47ct | Cushion | D | VVS2 | Very Good
From $820
Compare at $987
IGISave 66.8%2.47ct | Cushion | E | VS1 | Ideal
From $970
Compare at $2,920
IGISave 83.2%2.47ct | Cushion | D | VVS1 | Ideal
From $833
Compare at $4,950
IGISave 85.2%2.47ct | Cushion | D | VVS1 | Ideal
From $805
Compare at $5,430
IGISave 64.1%2.47ct | Cushion | E | VVS2 | Excellent
From $786
Compare at $2,187
Entry pricing in this category starts around $569.
What to Know When Shopping for 2.5 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $8,821 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 $1,047 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.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- 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 1,777 comparable stones in this segment. Prices start around $569 and go up to $9,390.
Based on the latest market data, the average asking price is about $1,414 with a median around $1,047.
The observed spread is roughly $8,821 across tracked listings, which is about 93.9% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $1,047, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
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 $8,821 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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