11 Carat Cushion Lab Grown Diamond Prices Comparison
As of March 2026, 11 carat cushion lab grown diamonds usually range from $2,096 to $12,237, with an average price of $5,041.In the last month, prices for these diamonds are down 3%.Compare 35 verified listings across 5 retailers tracked by CaratRadar.
11 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 35 verified 11-carat cushion lab grown diamonds listed across 5 online retailers. Prices in this segment range from $2,096 to $12,237, with an average asking price of $5,041 and a median of $4,478.
The price spread of $10,141 (82.9% 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.
35 diamonds tracked in this segment
Price range: $2,096 to $12,237
Average price: $5,041
Median price: $4,478
Available across 5 retailers
Savings potential: up to 82.9%
Price Range Overview
As of Mar 1, 2026Real market range for this carat, shape, and diamond type.
35
$2,096
$5,041
$4,478
$12,237
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 83.6%10.95ct | Cushion | F | VVS2 | Excellent
From $2,176
Compare at $13,245
IGISave 81.4%10.97ct | Cushion | G | VS1 | Ideal
From $3,602
Compare at $19,380
IGISave 81.5%10.97ct | Cushion | F | VVS2 | Excellent
From $4,553
Compare at $24,560
IGISave 56.5%11ct | Cushion | F | VS1 | Ideal
From $9,864
Compare at $22,680
IGISave 65.1%11ct | Cushion | E | VVS2 | Excellent
From $5,371
Compare at $15,400
IGISave 83.7%11ct | Cushion | F | VVS2 | Excellent
From $2,166
Compare at $13,310
IGISave 50.2%11ct | Cushion | F | VVS2 | Very Good
From $12,237
Compare at $24,570
IGISave 91.2%11.02ct | Cushion | F | VVS2 | Excellent
From $2,169
Compare at $24,680
IGISave 76.4%11.02ct | Cushion | G | VVS2 | Excellent
From $5,125
Compare at $21,760
IGISave 85.3%11.02ct | Cushion | G | VVS2 | Excellent
From $3,204
Compare at $21,810
IGISave 82.9%11.02ct | Cushion | E | VS2 | Excellent
From $3,734
Compare at $21,840
IGISave 82.8%11.02ct | Cushion | F | VVS2 | Excellent
From $7,064
Compare at $41,040
IGISave 79.5%11.03ct | Cushion | F | VS2 | Ideal
From $3,346
Compare at $16,340
IGISave 77.4%11.03ct | Cushion | FANCY | VVS2 | Good
From $5,964
Compare at $26,368
IGISave 76.4%11.03ct | Cushion | G | VVS2 | Excellent
From $5,130
Compare at $21,780
IGISave 87.2%11.03ct | Cushion | E | VS1 | Ideal
From $3,346
Compare at $26,050
IGISave 68.7%11.03ct | Cushion | F | VVS2 | Excellent
From $4,175
Compare at $13,345
IGISave 89.2%11.03ct | Cushion | F | VVS2 | Ideal
From $2,670
Compare at $24,630
IGISave 88%11.03ct | Cushion | E | VVS2 | Excellent
From $3,332
Compare at $27,740
IGISave 86.5%11.03ct | Cushion | E | VVS2 | Ideal
From $3,737
Compare at $27,740
IGISave 45.9%11.04ct | Cushion | G | VS1 | Ideal
From $9,610
Compare at $17,770
IGISave 75.7%11.04ct | Cushion | F | VVS2 | Ideal
From $5,977
Compare at $24,610
IGISave 76.4%11.04ct | Cushion | F | VS1 | Ideal
From $5,386
Compare at $22,820
IGISave 69%11.04ct | Cushion | F | VVS2 | Excellent
From $4,478
Compare at $14,468
IGISave 81.5%11.04ct | Cushion | F | VVS2 | Excellent
From $4,582
Compare at $24,730
IGISave 80.6%11.04ct | Cushion | E | VVS2 | Excellent
From $5,390
Compare at $27,770
IGISave 81.5%11.04ct | Cushion | F | VVS2 | Excellent
From $4,582
Compare at $24,730
IGISave 85.3%11.04ct | Cushion | F | VS1 | Ideal
From $3,348
Compare at $22,760
IGISave 48%11.04ct | Cushion | FANCY | VS2 | Very Good
From $3,957
Compare at $7,615
IGISave 66.5%11.04ct | Cushion | D | VS1 | Ideal
From $11,862
Compare at $35,460
IGISave 83.1%11.05ct | Cushion | E | VS1 | Excellent
From $9,591
Compare at $56,800
IGISave 89.3%11.05ct | Cushion | G | VS1 | Ideal
From $2,096
Compare at $19,600
IGISave 74.2%11.05ct | Cushion | G | VS1 | Ideal
From $5,038
Compare at $19,530
IGISave 87.8%11.05ct | Cushion | E | VS1 | Ideal
From $3,351
Compare at $27,520
IGISave 68.4%11.05ct | Cushion | F | VVS2 | Excellent
From $4,224
Compare at $13,370
Entry pricing in this category starts around $2,096.
What to Know When Shopping for 11 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $10,141 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 $4,478 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 35 comparable stones in this segment. Prices start around $2,096 and go up to $12,237.
Based on the latest market data, the average asking price is about $5,041 with a median around $4,478.
The observed spread is roughly $10,141 across tracked listings, which is about 82.9% 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 $4,478, 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 5 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 $10,141 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
10.9 Carat Cushion Lab Grown Diamond Prices
11.1 Carat Cushion Lab Grown Diamond Prices
10.8 Carat Cushion Lab Grown Diamond Prices
11.2 Carat Cushion Lab Grown Diamond Prices
10.7 Carat Cushion Lab Grown Diamond Prices
11.3 Carat Cushion Lab Grown Diamond Prices
10.6 Carat Cushion Lab Grown Diamond Prices
11 Carat Round Lab Grown Diamond Prices
11 Carat Oval Lab Grown Diamond Prices
11 Carat Radiant Lab Grown Diamond Prices
11 Carat Emerald Lab Grown Diamond Prices
11 Carat Marquise Lab Grown Diamond Prices
Tracking Lab Grown inventory for 11 carat Cushion diamonds.