2.8 Carat Cushion Lab Grown Diamond Prices Comparison
As of July 2026, 2.8 carat cushion lab grown diamonds usually range from $334 to $13,433, with an average price of $2,611.In the last month, prices for these diamonds are down 2.4%.Compare 542 verified listings across 11 retailers tracked by CaratRadar.
2.8 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 542 verified 2.8-carat cushion lab grown diamonds listed across 11 online retailers. Prices in this segment range from $334 to $13,433, with an average asking price of $2,611 and a median of $1,859.
The price spread of $13,099 (97.5% 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.
542 diamonds tracked in this segment
Price range: $334 to $13,433
Average price: $2,611
Median price: $1,859
Available across 11 retailers
Savings potential: up to 97.5%
Price Range Overview
As of Jul 11, 2026Real market range for this carat, shape, and diamond type.
542
$334
$2,611
$1,859
$13,433
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGI | 2.84ct | Cushion | F | VS1 | Ideal
From $500
Compare at $526
IGI | 2.88ct | Cushion | F | VS1 | Ideal
From $507
Compare at $533
IGI | 2.86ct | Cushion | F | VS1 | Very Good
From $509
Compare at $536
Save 68.1%IGI | 2.89ct | Cushion | F | VS1 | Excellent
From $514
Compare at $1,613
Save 67.9%IGI | 2.89ct | Cushion | F | VS1 | Very Good
From $524
Compare at $1,633
Save 69.5%IGI | 2.83ct | Cushion | F | VS2 | Very Good
From $526
Compare at $1,725
Save 65.8%IGI | 2.85ct | Cushion | F | VS1 | Excellent
From $529
Compare at $1,547
Save 66.1%IGI | 2.87ct | Cushion | F | VS1 | Very Good
From $532
Compare at $1,568
Save 65.4%IGI | 2.84ct | Cushion | F | VS1 | Excellent
From $532
Compare at $1,539
Save 65.4%IGI | 2.84ct | Cushion | F | VS1 | Excellent
From $532
Compare at $1,539
Save 69%IGI | 2.89ct | Cushion | F | VVS2 | Ideal
From $532
Compare at $1,714
Save 73.8%IGI | 2.8ct | Cushion | F | VS2 | Very Good
From $534
Compare at $2,038
Save 65.5%IGI | 2.85ct | Cushion | F | VS1 | Excellent
From $534
Compare at $1,548
Save 65.5%IGI | 2.85ct | Cushion | F | VS1 | Very Good
From $534
Compare at $1,548
Save 66.2%IGI | 2.88ct | Cushion | F | VS1 | Ideal
From $534
Compare at $1,578
Save 65.6%IGI | 2.86ct | Cushion | F | VS1 | Excellent
From $536
Compare at $1,559
Save 69.5%IGI | 2.89ct | Cushion | F | VS2 | Very Good
From $537
Compare at $1,760
Save 60.4%IGI | 2.89ct | Cushion | G | VS1 | Ideal
From $538
Compare at $1,357
Save 70.5%IGI | 2.88ct | Cushion | F | VS1 | Very Good
From $542
Compare at $1,840
Save 65.9%IGI | 2.89ct | Cushion | F | VS1 | Very Good
From $542
Compare at $1,590
Save 65.6%IGI | 2.8ct | Cushion | E | VS1 | Very Good
From $545
Compare at $1,584
Save 58%IGI | 2.82ct | Cushion | G | VS1 | Very Good
From $547
Compare at $1,303
Save 65.7%IGI | 2.81ct | Cushion | E | VS1 | Excellent
From $547
Compare at $1,595
Save 65.7%IGI | 2.81ct | Cushion | E | VS1 | Very Good
From $547
Compare at $1,595
Save 65.7%IGI | 2.81ct | Cushion | E | VS1 | Excellent
From $547
Compare at $1,595
Save 65.6%IGI | 2.89ct | Cushion | F | VS1 | Excellent
From $547
Compare at $1,591
Save 70.9%IGI | 2.87ct | Cushion | G | VS1 | Very Good
From $550
Compare at $1,893
Save 63.6%IGI | 2.85ct | Cushion | E | VS2 | Very Good
From $550
Compare at $1,512
Save 65.3%IGI | 2.8ct | Cushion | E | VS1 | Excellent
From $551
Compare at $1,586
Save 65.8%IGI | 2.83ct | Cushion | E | VS1 | Very Good
From $552
Compare at $1,616
Save 65.4%IGI | 2.81ct | Cushion | E | VS1 | Very Good
From $553
Compare at $1,596
Save 16.2%IGI | 2.83ct | Cushion | E | VS1 | Excellent
From $553
Compare at $660
Save 65.4%IGI | 2.81ct | Cushion | E | VS1 | Very Good
From $553
Compare at $1,596
Save 65.4%IGI | 2.81ct | Cushion | E | VS1 | Very Good
From $553
Compare at $1,596
Save 70.5%IGI | 2.83ct | Cushion | G | VS1 | Ideal
From $554
Compare at $1,880
Save 65.9%IGI | 2.84ct | Cushion | E | VS1 | Excellent
From $554
Compare at $1,627
Save 66.1%IGI | 2.85ct | Cushion | E | VS1 | Very Good
From $555
Compare at $1,637
Save 65.4%IGI | 2.82ct | Cushion | E | VS1 | Excellent
From $555
Compare at $1,606
Save 68.6%IGI | 2.82ct | Cushion | E | VS1 | Excellent
From $555
Compare at $1,770
Save 69%IGI | 2.82ct | Cushion | E | VVS2 | Very Good
From $556
Compare at $1,793
Save 65%IGI | 2.85ct | Cushion | F | VS1 | Very Good
From $557
Compare at $1,593
Save 65.6%IGI | 2.83ct | Cushion | E | VS1 | Very Good
From $557
Compare at $1,618
Save 65.6%IGI | 2.83ct | Cushion | E | VS1 | Excellent
From $557
Compare at $1,618
IGI | 2.89ct | Cushion | E | VS1 | Very Good
From $559
Compare at $1,795
IGI | 2.89ct | Cushion | E | VS1 | Very Good
From $559
Compare at $1,795
Save 66.3%IGI | 2.87ct | Cushion | E | VS1 | Excellent
From $559
Compare at $1,659
Save 66.8%IGI | 2.89ct | Cushion | E | VS1 | Excellent
From $559
Compare at $1,683
Save 66.8%IGI | 2.89ct | Cushion | E | VS1 | Ideal
From $559
Compare at $1,683
Save 66.8%IGI | 2.89ct | Cushion | E | VS1 | Excellent
From $559
Compare at $1,683
Save 68.9%IGI | 2.89ct | Cushion | E | VS1 | Excellent
From $559
Compare at $1,795
Entry pricing in this category starts around $334.
What to Know When Shopping for 2.8 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $13,099 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 $1,859 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 542 comparable stones in this segment. Prices start around $334 and go up to $13,433.
Based on the latest market data, the average asking price is about $2,611 with a median around $1,859.
The observed spread is roughly $13,099 across tracked listings, which is about 97.5% 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 $2,611. The median price is $1,859, 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 $13,099 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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