1.1 Carat Cushion Lab Grown Diamond Prices Comparison
As of April 2026, 1.1 carat cushion lab grown diamonds usually range from $259 to $2,910, with an average price of $840.In the last month, prices for these diamonds are down 0.5%.Compare 942 verified listings across 8 retailers tracked by CaratRadar.
1.1 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 942 verified 1.1-carat cushion lab grown diamonds listed across 8 online retailers. Prices in this segment range from $259 to $2,910, with an average asking price of $840 and a median of $698.
The price spread of $2,651 (91.1% 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.
942 diamonds tracked in this segment
Price range: $259 to $2,910
Average price: $840
Median price: $698
Available across 8 retailers
Savings potential: up to 91.1%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
942
$259
$840
$698
$2,910
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 68%GCAL | 1.11ct | Cushion | E | VS2 | Excellent
From $554
Compare at $1,730
Save 75.2%GIA | 1.11ct | Cushion | D | IF | Excellent
From $1,404
Compare at $5,660
Save 75.6%GIA | 1.11ct | Cushion | D | VVS2 | Very Good
From $824
Compare at $3,380
Save 71.5%GIA | 1.11ct | Cushion | D | VVS2 | Excellent
From $934
Compare at $3,280
Save 70.7%GIA | 1.11ct | Cushion | E | VS1 | Excellent
From $764
Compare at $2,610
Save 75.2%GIA | 1.11ct | Cushion | D | IF | Excellent
From $1,404
Compare at $5,660
Save 71.4%GIA | 1.11ct | Cushion | E | VS1 | Excellent
From $764
Compare at $2,670
Save 78.5%GIA | 1.11ct | Cushion | E | VVS1 | Excellent
From $823
Compare at $3,820
Save 73.5%GIA | 1.11ct | Cushion | D | VS1 | Ideal
From $821
Compare at $3,100
Save 75.2%GIA | 1.11ct | Cushion | D | IF | Excellent
From $1,404
Compare at $5,660
Save 75.3%IGI | 1.11ct | Cushion | G | VS1 | Very Good
From $402
Compare at $1,630
Save 13.5%IGI | 1.11ct | Cushion | G | VS2 | Excellent
From $399
Compare at $461
Save 74.3%IGI | 1.11ct | Cushion | G | VS1 | Ideal
From $344
Compare at $1,340
Save 45.5%IGI | 1.11ct | Cushion | D | VS1 | Excellent
From $408
Compare at $749
Save 74.7%IGI | 1.11ct | Cushion | H | VVS1 | Ideal
From $474
Compare at $1,870
Save 71.9%IGI | 1.11ct | Cushion | G | VVS2 | Ideal
From $603
Compare at $2,150
Save 71.4%IGI | 1.11ct | Cushion | F | VVS2 | Ideal
From $658
Compare at $2,300
Save 79.1%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $339
Compare at $1,620
Save 73.6%IGI | 1.11ct | Cushion | F | VS2 | Ideal
From $403
Compare at $1,530
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.6%IGI | 1.11ct | Cushion | F | VS2 | Ideal
From $403
Compare at $1,530
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 76%IGI | 1.11ct | Cushion | G | VVS2 | Ideal
From $331
Compare at $1,380
Save 57%IGI | 1.11ct | Cushion | E | VVS2 | Very Good
From $508
Compare at $1,180
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 70.6%IGI | 1.11ct | Cushion | E | VS2 | Ideal
From $409
Compare at $1,390
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 73.8%IGI | 1.11ct | Cushion | G | VS1 | Ideal
From $385
Compare at $1,470
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 68.8%IGI | 1.11ct | Cushion | E | VS2 | Very Good
From $549
Compare at $1,760
Save 62.1%IGI | 1.11ct | Cushion | E | VS1 | Very Good
From $486
Compare at $1,280
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 34%IGI | 1.11ct | Cushion | D | VVS2 | Ideal
From $569
Compare at $861
Save 59.3%IGI | 1.11ct | Cushion | D | SI1 | Ideal
From $464
Compare at $1,140
Save 73.3%IGI | 1.11ct | Cushion | F | VS1 | Ideal
From $431
Compare at $1,610
Save 62.1%IGI | 1.11ct | Cushion | E | VS1 | Very Good
From $486
Compare at $1,280
Save 26.2%IGI | 1.11ct | Cushion | E | VVS2 | Very Good
From $508
Compare at $688
Save 26.2%IGI | 1.11ct | Cushion | E | VVS2 | Ideal
From $508
Compare at $688
Save 70.5%IGI | 1.11ct | Cushion | E | VS2 | Ideal
From $357
Compare at $1,210
Save 26.2%IGI | 1.11ct | Cushion | E | VVS2 | Very Good
From $508
Compare at $688
Save 26.2%IGI | 1.11ct | Cushion | E | VVS2 | Very Good
From $508
Compare at $688
Entry pricing in this category starts around $259.
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 $2,651 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 $698 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 942 comparable stones in this segment. Prices start around $259 and go up to $2,910.
Based on the latest market data, the average asking price is about $840 with a median around $698.
The observed spread is roughly $2,651 across tracked listings, which is about 91.1% 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 $698, 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 8 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 $2,651 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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