2.6 Carat Cushion Lab Grown Diamond Prices Comparison
As of February 2026, 2.6 carat cushion lab grown diamonds usually range from $557 to $9,750, with an average price of $1,399.In the last month, prices for these diamonds are down 3.2%.Compare 1,673 verified listings across 13 retailers tracked by CaratRadar.
2.6 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,673 verified 2.6-carat cushion lab grown diamonds listed across 13 online retailers. Prices in this segment range from $557 to $9,750, with an average asking price of $1,399 and a median of $1,072.
The price spread of $9,193 (94.3% 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.
1,673 diamonds tracked in this segment
Price range: $557 to $9,750
Average price: $1,399
Median price: $1,072
Available across 13 retailers
Savings potential: up to 94.3%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,673
$557
$1,399
$1,072
$9,750
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 25.3%2.55ct | Cushion | E | VS1 | Good
From $1,559
Compare at $2,086
IGISave 47.3%2.55ct | Cushion | D | VVS1 | Very Good
From $1,714
Compare at $3,249
IGISave 55.9%2.55ct | Cushion | D | IF | Very Good
From $4,175
Compare at $9,470
IGISave 24.9%2.55ct | Cushion | D | VS1 | Excellent
From $1,887
Compare at $2,511
IGISave 82.3%2.55ct | Cushion | E | VVS2 | Ideal
From $1,042
Compare at $5,880
GIASave 52%2.55ct | Cushion | H | VS1 | Excellent
From $3,672
Compare at $7,650
IGISave 81.1%2.55ct | Cushion | E | VVS1 | Very Good
From $1,238
Compare at $6,550
IGISave 49.8%2.55ct | Cushion | G | SI1 | Ideal
From $4,940
Compare at $9,849
IGISave 80.9%2.55ct | Cushion | E | VS1 | Ideal
From $996
Compare at $5,210
IGISave 84.1%2.55ct | Cushion | E | VVS1 | Ideal
From $1,068
Compare at $6,700
IGISave 75.5%2.55ct | Cushion | D | VS1 | Ideal
From $1,408
Compare at $5,750
IGISave 82.4%2.55ct | Cushion | E | VS2 | Ideal
From $842
Compare at $4,790
IGISave 84.1%2.55ct | Cushion | D | VS2 | Ideal
From $823
Compare at $5,180
IGISave 48.4%2.55ct | Cushion | E | VS1 | Ideal
From $823
Compare at $1,594
IGISave 84.6%2.55ct | Cushion | E | VS1 | Ideal
From $823
Compare at $5,330
IGISave 85.7%2.55ct | Cushion | E | VVS2 | Ideal
From $848
Compare at $5,930
IGISave 85.9%2.55ct | Cushion | E | VVS2 | Ideal
From $848
Compare at $6,010
IGISave 48.4%2.55ct | Cushion | E | VS1 | Ideal
From $823
Compare at $1,594
IGISave 48.4%2.55ct | Cushion | E | VS1 | Ideal
From $823
Compare at $1,594
IGISave 84.6%2.55ct | Cushion | E | VS1 | Ideal
From $823
Compare at $5,330
IGISave 81.9%2.55ct | Cushion | E | VVS2 | Ideal
From $1,085
Compare at $6,010
IGISave 34.6%2.55ct | Cushion | E | VS1 | Ideal
From $1,042
Compare at $1,594
IGISave 83%2.55ct | Cushion | E | VS1 | Very Good
From $919
Compare at $5,410
IGISave 76.4%2.55ct | Cushion | D | VVS1 | Ideal
From $1,794
Compare at $7,610
IGISave 48.4%2.55ct | Cushion | E | VS1 | Ideal
From $823
Compare at $1,594
IGISave 48.4%2.55ct | Cushion | E | VS1 | Ideal
From $823
Compare at $1,594
IGISave 81%2.55ct | Cushion | F | VVS2 | Ideal
From $1,042
Compare at $5,490
IGISave 85.7%2.55ct | Cushion | E | VVS2 | Ideal
From $848
Compare at $5,930
IGISave 84.6%2.55ct | Cushion | E | VS1 | Ideal
From $823
Compare at $5,330
IGISave 67.8%2.55ct | Cushion | E | IF | Ideal
From $2,810
Compare at $8,720
IGISave 62%2.55ct | Cushion | E | IF | Ideal
From $3,347
Compare at $8,810
IGISave 83.7%2.55ct | Cushion | E | VVS2 | Excellent
From $1,123
Compare at $6,910
IGISave 85.7%2.55ct | Cushion | E | VVS2 | Ideal
From $848
Compare at $5,930
IGISave 48.4%2.55ct | Cushion | E | VS1 | Ideal
From $823
Compare at $1,594
IGISave 84.8%2.55ct | Cushion | E | VVS2 | Very Good
From $1,399
Compare at $9,200
IGISave 83.7%2.55ct | Cushion | G | VVS2 | Ideal
From $737
Compare at $4,520
IGISave 83%2.55ct | Cushion | E | VS1 | Very Good
From $919
Compare at $5,410
IGISave 74.1%2.55ct | Cushion | D | IF | Very Good
From $2,626
Compare at $10,140
IGISave 77.4%2.55ct | Cushion | F | VS2 | Ideal
From $788
Compare at $3,480
IGISave 78.5%2.55ct | Cushion | E | VVS2 | Ideal
From $760
Compare at $3,530
IGISave 48.9%2.55ct | Cushion | D | VS1 | Very Good
From $848
Compare at $1,659
IGISave 85.5%2.55ct | Cushion | D | VVS1 | Ideal
From $1,112
Compare at $7,660
IGISave 85.5%2.55ct | Cushion | D | VVS1 | Ideal
From $1,112
Compare at $7,660
IGISave 87.1%2.55ct | Cushion | D | VS1 | Ideal
From $739
Compare at $5,720
IGISave 62.5%2.55ct | Cushion | G | VS1 | Very Good
From $953
Compare at $2,538
IGISave 73.9%2.55ct | Cushion | F | VS1 | Ideal
From $1,109
Compare at $4,240
IGISave 70.9%2.55ct | Cushion | F | VS1 | Ideal
From $1,089
Compare at $3,740
IGISave 80%2.55ct | Cushion | E | VS2 | Ideal
From $764
Compare at $3,820
IGISave 87.4%2.55ct | Cushion | D | VVS2 | Ideal
From $829
Compare at $6,580
IGISave 87.4%2.55ct | Cushion | D | VVS2 | Ideal
From $829
Compare at $6,580
Entry pricing in this category starts around $557.
What to Know When Shopping for 2.6 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $9,193 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 $1,072 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 1,673 comparable stones in this segment. Prices start around $557 and go up to $9,750.
Based on the latest market data, the average asking price is about $1,399 with a median around $1,072.
The observed spread is roughly $9,193 across tracked listings, which is about 94.3% 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 $1,072, 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 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 $9,193 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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