1.1 Carat Cushion Lab Grown Diamond Prices Comparison
As of February 2026, 1.1 carat cushion lab grown diamonds usually range from $276 to $5,538, with an average price of $489.In the last month, prices for these diamonds are down 3.1%.Compare 4,497 verified listings across 12 retailers tracked by CaratRadar.
1.1 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 4,497 verified 1.1-carat cushion lab grown diamonds listed across 12 online retailers. Prices in this segment range from $276 to $5,538, with an average asking price of $489 and a median of $467.
The price spread of $5,262 (95.0% 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.
4,497 diamonds tracked in this segment
Price range: $276 to $5,538
Average price: $489
Median price: $467
Available across 12 retailers
Savings potential: up to 95.0%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
4,497
$276
$489
$467
$5,538
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 51.5%1.06ct | Cushion | D | SI2 | Very Good
From $572
Compare at $1,178
IGISave 77.6%1.06ct | Cushion | E | VS2 | Ideal
From $405
Compare at $1,810
IGISave 55.1%1.06ct | Cushion | D | VVS1 | Ideal
From $546
Compare at $1,216
IGISave 73.9%1.06ct | Cushion | G | VS1 | Very Good
From $368
Compare at $1,410
IGISave 72.8%1.06ct | Cushion | D | VVS2 | Ideal
From $489
Compare at $1,800
IGISave 73.7%1.06ct | Cushion | E | VS1 | Ideal
From $626
Compare at $2,380
IGISave 73.7%1.06ct | Cushion | F | VVS2 | Ideal
From $628
Compare at $2,390
IGISave 71.8%1.06ct | Cushion | E | VS2 | Ideal
From $646
Compare at $2,290
IGISave 50.2%1.06ct | Cushion | D | VS1 | Ideal
From $481
Compare at $966
IGISave 45.6%1.06ct | Cushion | E | VS1 | Excellent
From $356
Compare at $655
IGISave 73.7%1.06ct | Cushion | E | VS1 | Ideal
From $626
Compare at $2,380
IGISave 22.1%1.06ct | Cushion | E | VS1 | Ideal
From $352
Compare at $452
IGISave 73.9%1.06ct | Cushion | G | VS1 | Very Good
From $368
Compare at $1,410
IGISave 73.3%1.06ct | Cushion | G | VS1 | Very Good
From $424
Compare at $1,590
IGISave 22.1%1.06ct | Cushion | E | VS1 | Ideal
From $352
Compare at $452
IGISave 72.2%1.06ct | Cushion | F | VVS2 | Ideal
From $405
Compare at $1,460
IGISave 73.7%1.06ct | Cushion | F | VS2 | Very Good
From $394
Compare at $1,500
IGISave 65.3%1.06ct | Cushion | E | IF | Excellent
From $840
Compare at $2,420
IGISave 68.1%1.06ct | Cushion | E | VVS2 | Excellent
From $402
Compare at $1,260
IGISave 28.1%1.06ct | Cushion | D | VS1 | Very Good
From $377
Compare at $524
IGISave 77.7%1.06ct | Cushion | E | VS2 | Ideal
From $386
Compare at $1,730
IGISave 73.5%1.06ct | Cushion | F | VS1 | Ideal
From $411
Compare at $1,550
IGISave 73.9%1.06ct | Cushion | G | VS1 | Very Good
From $368
Compare at $1,410
IGISave 73.9%1.06ct | Cushion | G | VS1 | Very Good
From $368
Compare at $1,410
IGISave 73.7%1.06ct | Cushion | F | VS2 | Very Good
From $394
Compare at $1,500
IGISave 73.7%1.06ct | Cushion | F | VS1 | Excellent
From $394
Compare at $1,500
IGISave 77.8%1.06ct | Cushion | F | VS2 | Ideal
From $369
Compare at $1,660
IGISave 77.7%1.06ct | Cushion | F | VS1 | Ideal
From $390
Compare at $1,750
IGISave 22.1%1.06ct | Cushion | E | VS1 | Ideal
From $352
Compare at $452
IGISave 22.1%1.06ct | Cushion | E | VS1 | Ideal
From $352
Compare at $452
GIASave 46.5%1.06ct | Cushion | E | VS2 | Ideal
From $830
Compare at $1,550
GIASave 77.8%1.06ct | Cushion | D | VVS1 | Excellent
From $541
Compare at $2,440
GIASave 72.8%1.06ct | Cushion | D | VVS2 | Excellent
From $728
Compare at $2,680
GIASave 77.4%1.06ct | Cushion | D | VVS1 | Excellent
From $734
Compare at $3,250
GIASave 78.5%1.06ct | Cushion | D | VVS2 | Excellent
From $507
Compare at $2,360
GIASave 77.3%1.06ct | Cushion | E | VS1 | Excellent
From $580
Compare at $2,550
GIASave 62%1.06ct | Cushion | D | VVS2 | Excellent
From $900
Compare at $2,366
GIASave 80.3%1.06ct | Cushion | D | VVS2 | Ideal
From $639
Compare at $3,240
GIASave 80%1.06ct | Cushion | E | VVS2 | Excellent
From $619
Compare at $3,090
GIASave 73.6%1.06ct | Cushion | D | VVS2 | Excellent
From $809
Compare at $3,060
GIASave 77.9%1.06ct | Cushion | D | VS1 | Excellent
From $610
Compare at $2,760
GIASave 63.5%1.06ct | Cushion | E | VVS2 | Excellent
From $645
Compare at $1,768
GIASave 80%1.06ct | Cushion | E | VVS2 | Excellent
From $619
Compare at $3,090
GIASave 73.6%1.06ct | Cushion | E | VS1 | Excellent
From $743
Compare at $2,820
GIASave 78.3%1.06ct | Cushion | E | VVS2 | Excellent
From $498
Compare at $2,300
IGISave 73.5%1.06ct | Cushion | F | VS1 | Ideal
From $411
Compare at $1,550
IGISave 74.7%1.06ct | Cushion | D | VVS2 | Ideal
From $465
Compare at $1,840
IGISave 73.9%1.06ct | Cushion | G | VS1 | Very Good
From $368
Compare at $1,410
IGISave 73.3%1.06ct | Cushion | G | VS1 | Very Good
From $424
Compare at $1,590
1.06ct | Cushion | F | VS1 | Ideal
From $388
Compare at $850
Entry pricing in this category starts around $276.
What to Know When Shopping for 1.1 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $5,262 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 $467 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 4,497 comparable stones in this segment. Prices start around $276 and go up to $5,538.
Based on the latest market data, the average asking price is about $489 with a median around $467.
The observed spread is roughly $5,262 across tracked listings, which is about 95.0% 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 $467, 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 12 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 $5,262 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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