4.1 Carat Cushion Lab Grown Diamond Prices Comparison
As of February 2026, 4.1 carat cushion lab grown diamonds usually range from $742 to $34,520, with an average price of $2,563.In the last month, prices for these diamonds are down 1.9%.Compare 2,171 verified listings across 12 retailers tracked by CaratRadar.
4.1 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 2,171 verified 4.1-carat cushion lab grown diamonds listed across 12 online retailers. Prices in this segment range from $742 to $34,520, with an average asking price of $2,563 and a median of $1,432.
The price spread of $33,778 (97.9% 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.
2,171 diamonds tracked in this segment
Price range: $742 to $34,520
Average price: $2,563
Median price: $1,432
Available across 12 retailers
Savings potential: up to 97.9%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
2,171
$742
$2,563
$1,432
$34,520
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 74.5%4.05ct | Cushion | G | VS1 | Very Good
From $1,273
Compare at $5,000
IGISave 80%4.05ct | Cushion | H | VS2 | Very Good
From $1,510
Compare at $7,559
GIASave 39%4.05ct | Cushion | D | FL | Excellent
From $33,560
Compare at $55,055
GIASave 66.9%4.05ct | Cushion | D | VVS1 | Excellent
From $5,263
Compare at $15,898
GIASave 65.6%4.05ct | Cushion | D | VVS1 | Excellent
From $8,550
Compare at $24,840
GIASave 79.6%4.05ct | Cushion | D | VS1 | Excellent
From $4,365
Compare at $21,410
GIASave 80.6%4.05ct | Cushion | H | VS2 | Ideal
From $2,646
Compare at $13,660
GIASave 78.9%4.05ct | Cushion | D | VS1 | Excellent
From $4,365
Compare at $20,690
GIASave 81.1%4.05ct | Cushion | D | VVS1 | Excellent
From $4,262
Compare at $22,550
IGISave 71.4%4.05ct | Cushion | G | VS2 | Ideal
From $2,789
Compare at $9,740
GIASave 82%4.05ct | Cushion | D | VVS1 | Excellent
From $4,262
Compare at $23,710
GIASave 82.1%4.05ct | Cushion | D | VVS1 | Excellent
From $4,232
Compare at $23,710
IGISave 37.5%4.05ct | Cushion | H | VS1 | Ideal
From $1,587
Compare at $2,538
IGISave 83%4.05ct | Cushion | G | VVS2 | Ideal
From $1,378
Compare at $8,100
IGISave 84.3%4.05ct | Cushion | G | VS1 | Ideal
From $1,254
Compare at $7,970
IGISave 73.1%4.05ct | Cushion | E | VVS1 | Ideal
From $3,044
Compare at $11,320
IGISave 84.3%4.05ct | Cushion | E | VVS1 | Ideal
From $3,619
Compare at $23,110
IGISave 85.3%4.05ct | Cushion | D | VVS2 | Ideal
From $1,655
Compare at $11,220
IGISave 86.6%4.05ct | Cushion | E | VS1 | Ideal
From $1,281
Compare at $9,580
IGISave 40.5%4.05ct | Cushion | E | VS1 | Ideal
From $1,580
Compare at $2,654
IGISave 73.6%4.05ct | Cushion | E | VVS1 | Excellent
From $2,962
Compare at $11,240
IGISave 74.8%4.05ct | Cushion | F | VS1 | Very Good
From $9,677
Compare at $38,360
IGISave 58.6%4.05ct | Cushion | H | VS1 | Ideal
From $838
Compare at $2,023
IGISave 57.4%4.05ct | Cushion | H | VS1 | Ideal
From $1,057
Compare at $2,478
IGISave 43.8%4.05ct | Cushion | E | VS1 | Ideal
From $956
Compare at $1,702
IGISave 52.3%4.05ct | Cushion | D | VS1 | Ideal
From $1,360
Compare at $2,851
IGISave 86.6%4.05ct | Cushion | F | VS1 | Ideal
From $1,075
Compare at $8,040
IGISave 54.4%4.05ct | Cushion | G | VS1 | Ideal
From $2,047
Compare at $4,490
IGISave 78.2%4.05ct | Cushion | D | VVS1 | Excellent
From $2,322
Compare at $10,660
IGISave 87.4%4.05ct | Cushion | E | VVS2 | Very Good
From $1,217
Compare at $9,690
IGISave 15.7%4.05ct | Cushion | E | VVS1 | Very Good
From $4,405
Compare at $5,222
IGISave 86.6%4.05ct | Cushion | E | VVS2 | Fair
From $1,309
Compare at $9,780
IGISave 74%4.05ct | Cushion | E | VVS2 | Excellent
From $1,116
Compare at $4,290
IGISave 64.2%4.05ct | Cushion | D | IF | Very Good
From $11,551
Compare at $32,254
IGISave 17.3%4.05ct | Cushion | E | VS1 | Very Good
From $1,026
Compare at $1,241
IGISave 85.6%4.05ct | Cushion | E | VS1 | Good
From $1,580
Compare at $10,950
IGISave 76.7%4.05ct | Cushion | D | VS1 | Ideal
From $2,276
Compare at $9,750
4.05ct | Cushion | F | VS1 | Excellent
From $924
Compare at $4,940
IGISave 83.2%4.05ct | Cushion | E | VVS2 | Ideal
From $985
Compare at $5,880
4.05ct | Cushion | D | VS2 | Excellent
From $952
Compare at $5,160
IGISave 88.7%4.05ct | Cushion | E | VS1 | Ideal
From $1,083
Compare at $9,620
IGISave 85.3%4.05ct | Cushion | E | VS2 | Excellent
From $1,282
Compare at $8,740
IGISave 80.4%4.05ct | Cushion | E | VVS2 | Ideal
From $1,318
Compare at $6,720
IGISave 51.7%4.05ct | Cushion | E | VS1 | Very Good
From $1,281
Compare at $2,654
IGISave 14%4.05ct | Cushion | F | VS2 | Very Good
From $983
Compare at $1,143
IGISave 53.4%4.05ct | Cushion | D | VS1 | Very Good
From $1,557
Compare at $3,343
GIASave 38.1%4.05ct | Cushion | E | SI1 | Ideal
From $4,034
Compare at $6,520
GIASave 68%4.05ct | Cushion | D | VVS1 | Ideal
From $6,928
Compare at $21,630
GIASave 68%4.05ct | Cushion | D | VVS1 | Excellent
From $5,085
Compare at $15,898
IGISave 94%4.05ct | Cushion | G | VS1 | Ideal
From $1,254
Compare at $20,971
Entry pricing in this category starts around $742.
What to Know When Shopping for 4.1 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $33,778 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 $1,432 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 2,171 comparable stones in this segment. Prices start around $742 and go up to $34,520.
Based on the latest market data, the average asking price is about $2,563 with a median around $1,432.
The observed spread is roughly $33,778 across tracked listings, which is about 97.9% 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 $1,432, 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 $33,778 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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