3 Carat Cushion Lab Grown Diamond Prices Comparison
As of July 2026, 3 carat cushion lab grown diamonds usually range from $396 to $12,500, with an average price of $2,324.In the last month, prices for these diamonds are down 1.7%.Compare 8,931 verified listings across 14 retailers tracked by CaratRadar.
3 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 8,931 verified 3-carat cushion lab grown diamonds listed across 14 online retailers. Prices in this segment range from $396 to $12,500, with an average asking price of $2,324 and a median of $1,585.
The price spread of $12,104 (96.8% 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.
8,931 diamonds tracked in this segment
Price range: $396 to $12,500
Average price: $2,324
Median price: $1,585
Available across 14 retailers
Savings potential: up to 96.8%
Price Range Overview
As of Jul 11, 2026Real market range for this carat, shape, and diamond type.
8,931
$396
$2,324
$1,585
$12,500
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 62.1%IGI | 3ct | Cushion | G | VS2 | Very Good
From $486
Compare at $1,284
Save 78.3%IGI | 3.09ct | Cushion | I | VS1 | Ideal
From $491
Compare at $2,260
Save 11.1%IGI | 3ct | Cushion | F | VS1 | Very Good
From $497
Compare at $559
Save 65.6%IGI | 3.05ct | Cushion | F | VS1 | Ideal
From $506
Compare at $1,470
Save 74.9%IGI | 3.01ct | Cushion | H | SI1 | Ideal
From $507
Compare at $2,018
Save 71.1%IGI | 3.02ct | Cushion | E | SI1 | Very Good
From $510
Compare at $1,764
Save 72.5%IGI | 3ct | Cushion | G | SI1 | Ideal
From $518
Compare at $1,887
Save 72.5%IGI | 3.01ct | Cushion | G | VS2 | Ideal
From $518
Compare at $1,887
Save 70.1%IGI | 3ct | Cushion | G | VS1 | Very Good
From $519
Compare at $1,736
Save 16.4%IGI | 3.01ct | Cushion | G | VS1 | Very Good
From $520
Compare at $622
Save 70.1%IGI | 3.01ct | Cushion | G | VS1 | Very Good
From $520
Compare at $1,742
Save 16.4%IGI | 3.01ct | Cushion | G | VS1 | Very Good
From $520
Compare at $622
Save 65.8%IGI | 3.02ct | Cushion | F | VVS2 | Excellent
From $520
Compare at $1,519
Save 16.3%IGI | 3.02ct | Cushion | G | VS1 | Very Good
From $522
Compare at $624
Save 70.1%IGI | 3.02ct | Cushion | G | VS1 | Very Good
From $522
Compare at $1,748
Save 57.2%IGI | 3.1ct | Cushion | F | VVS2 | Ideal
From $524
Compare at $1,224
Save 69.9%IGI | 3ct | Cushion | G | VS1 | Very Good
From $524
Compare at $1,742
Save 16.3%IGI | 3.03ct | Cushion | G | VS1 | Ideal
From $524
Compare at $626
Save 16.3%IGI | 3ct | Cushion | G | VS1 | Very Good
From $524
Compare at $626
Save 63.6%IGI | 3.01ct | Cushion | F | VS1 | Excellent
From $524
Compare at $1,441
Save 33.2%IGI | 3.01ct | Cushion | F | VS1 | Ideal
From $524
Compare at $785
Save 59.5%IGI | 3.01ct | Cushion | G | VS2 | Ideal
From $525
Compare at $1,295
Save 16.4%IGI | 3.01ct | Cushion | G | VS1 | Ideal
From $526
Compare at $629
Save 16.5%IGI | 3.02ct | Cushion | G | VS1 | Very Good
From $527
Compare at $631
Save 16.5%IGI | 3.02ct | Cushion | G | VS1 | Very Good
From $527
Compare at $631
Save 16.5%IGI | 3.02ct | Cushion | G | VS1 | Very Good
From $527
Compare at $631
Save 16.5%IGI | 3.02ct | Cushion | G | VS1 | Very Good
From $527
Compare at $631
Save 16.3%IGI | 3.05ct | Cushion | G | VS1 | Very Good
From $527
Compare at $630
Save 16.3%IGI | 3.05ct | Cushion | G | VS1 | Very Good
From $527
Compare at $630
Save 69.9%IGI | 3.09ct | Cushion | G | VS1 | Ideal
From $528
Compare at $1,753
Save 69.9%IGI | 3.03ct | Cushion | G | VS1 | Very Good
From $529
Compare at $1,760
IGI | 3.07ct | Cushion | G | VS1 | Ideal
From $529
Compare at $555
Save 69.9%IGI | 3.03ct | Cushion | G | VS1 | Very Good
From $529
Compare at $1,760
IGI | 3.08ct | Cushion | G | VS1 | Very Good
From $530
Compare at $557
IGI | 3.08ct | Cushion | G | VS1 | Very Good
From $530
Compare at $557
IGI | 3.05ct | Cushion | G | VS1 | Very Good
From $531
Compare at $558
Save 69.9%IGI | 3.04ct | Cushion | G | VS1 | Very Good
From $531
Compare at $1,766
Save 16.2%IGI | 3.07ct | Cushion | G | VS1 | Very Good
From $531
Compare at $634
IGI | 3.05ct | Cushion | G | VS1 | Very Good
From $531
Compare at $558
IGI | 3.05ct | Cushion | G | VS1 | Very Good
From $531
Compare at $558
IGI | 3.06ct | Cushion | G | VS1 | Ideal
From $532
Compare at $559
IGI | 3.09ct | Cushion | G | VS1 | Ideal
From $532
Compare at $559
IGI | 3.09ct | Cushion | G | VS1 | Very Good
From $532
Compare at $559
Save 72.6%IGI | 3.01ct | Cushion | G | VS2 | Ideal
From $533
Compare at $1,942
IGI | 3.1ct | Cushion | G | VS1 | Very Good
From $533
Compare at $566
Save 74.1%IGI | 3.03ct | Cushion | E | VS1 | Ideal
From $535
Compare at $2,069
Save 58.1%IGI | 3.1ct | Cushion | H | VS1 | Ideal
From $536
Compare at $1,280
Save 16.4%IGI | 3.01ct | Cushion | G | VVS2 | Very Good
From $536
Compare at $641
IGI | 3.08ct | Cushion | G | VS1 | Very Good
From $536
Compare at $559
Save 16.4%IGI | 3.01ct | Cushion | G | VVS2 | Ideal
From $536
Compare at $641
Entry pricing in this category starts around $396.
What to Know When Shopping for 3 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $12,104 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 $1,585 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 8,931 comparable stones in this segment. Prices start around $396 and go up to $12,500.
Based on the latest market data, the average asking price is about $2,324 with a median around $1,585.
The observed spread is roughly $12,104 across tracked listings, which is about 96.8% 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 $2,324. The median price is $1,585, 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 14 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 $12,104 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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