3.6 Carat Cushion Lab Grown Diamond Prices Comparison
As of February 2026, 3.6 carat cushion lab grown diamonds usually range from $677 to $27,310, with an average price of $2,435.In the last month, prices for these diamonds are down 4.4%.Compare 770 verified listings across 11 retailers tracked by CaratRadar.
3.6 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 770 verified 3.6-carat cushion lab grown diamonds listed across 11 online retailers. Prices in this segment range from $677 to $27,310, with an average asking price of $2,435 and a median of $1,669.
The price spread of $26,633 (97.5% 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.
770 diamonds tracked in this segment
Price range: $677 to $27,310
Average price: $2,435
Median price: $1,669
Available across 11 retailers
Savings potential: up to 97.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
770
$677
$2,435
$1,669
$27,310
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 52.3%3.55ct | Cushion | G | VS2 | Ideal
From $12,230
Compare at $25,620
IGISave 48.5%3.55ct | Cushion | G | VS1 | Very Good
From $1,218
Compare at $2,366
IGISave 86.5%3.55ct | Cushion | G | VS1 | Ideal
From $906
Compare at $6,700
GIASave 31.3%3.55ct | Cushion | F | VS1 | Ideal
From $4,793
Compare at $6,980
GIASave 69.3%3.55ct | Cushion | D | VVS2 | Ideal
From $3,061
Compare at $9,980
GIASave 57.7%3.55ct | Cushion | E | VVS2 | Excellent
From $3,691
Compare at $8,717
GIASave 60.6%3.55ct | Cushion | F | VS1 | Excellent
From $1,810
Compare at $4,595
IGISave 52%3.55ct | Cushion | H | VS1 | Ideal
From $11,430
Compare at $23,826
IGISave 52.5%3.55ct | Cushion | G | VS1 | Ideal
From $13,030
Compare at $27,414
IGISave 82.7%3.55ct | Cushion | D | VVS2 | Excellent
From $2,151
Compare at $12,400
IGISave 84.8%3.55ct | Cushion | E | VVS2 | Ideal
From $1,409
Compare at $9,280
IGISave 77.1%3.55ct | Cushion | D | VVS2 | Very Good
From $1,394
Compare at $6,100
IGISave 82.8%3.55ct | Cushion | F | VS1 | Very Good
From $1,285
Compare at $7,490
IGISave 83.1%3.55ct | Cushion | F | VS1 | Ideal
From $1,180
Compare at $6,980
IGISave 87.6%3.55ct | Cushion | E | VS1 | Ideal
From $1,116
Compare at $8,970
IGISave 43.9%3.55ct | Cushion | F | VS1 | Ideal
From $1,324
Compare at $2,362
IGISave 67.2%3.55ct | Cushion | D | IF | Very Good
From $5,717
Compare at $17,445
IGISave 34.5%3.55ct | Cushion | D | VVS2 | Very Good
From $2,010
Compare at $3,067
IGISave 87.4%3.55ct | Cushion | E | VS1 | Ideal
From $1,146
Compare at $9,100
IGISave 81.1%3.55ct | Cushion | D | VVS2 | Excellent
From $1,923
Compare at $10,190
IGISave 58.3%3.55ct | Cushion | F | VVS1 | Very Good
From $1,706
Compare at $4,089
IGISave 59.4%3.55ct | Cushion | E | VS2 | Very Good
From $1,028
Compare at $2,536
IGISave 81.6%3.55ct | Cushion | D | VVS2 | Ideal
From $1,808
Compare at $9,840
IGISave 17.1%3.55ct | Cushion | D | VVS2 | Very Good
From $1,279
Compare at $1,543
IGISave 82.5%3.55ct | Cushion | D | VVS2 | Ideal
From $2,037
Compare at $11,660
IGISave 81.9%3.55ct | Cushion | D | VVS2 | Ideal
From $1,780
Compare at $9,840
IGISave 78.2%3.55ct | Cushion | D | VVS1 | Ideal
From $2,493
Compare at $11,440
IGISave 57.2%3.55ct | Cushion | D | VVS2 | Ideal
From $1,838
Compare at $4,295
IGISave 80.8%3.55ct | Cushion | D | VS1 | Good
From $1,641
Compare at $8,540
IGISave 80.7%3.55ct | Cushion | D | VVS2 | Ideal
From $1,900
Compare at $9,860
IGISave 26.4%3.55ct | Cushion | F | VS1 | Very Good
From $5,137
Compare at $6,980
IGISave 54.7%3.55ct | Cushion | D | VVS2 | Very Good
From $1,947
Compare at $4,295
IGISave 59%3.55ct | Cushion | E | VVS2 | Very Good
From $3,477
Compare at $8,490
GIASave 70.1%3.55ct | Cushion | D | VS1 | Good
From $2,559
Compare at $8,560
IGISave 51.9%3.55ct | Cushion | G | SI1 | Ideal
From $10,890
Compare at $22,631
IGISave 56.2%3.55ct | Cushion | G | SI2 | Ideal
From $4,210
Compare at $9,613
IGISave 72.6%3.55ct | Cushion | D | VS2 | Ideal
From $1,717
Compare at $6,270
IGISave 85%3.55ct | Cushion | G | VS1 | Ideal
From $1,151
Compare at $7,660
IGISave 80%3.55ct | Cushion | G | VS1 | Ideal
From $876
Compare at $4,370
IGISave 84.1%3.55ct | Cushion | E | VS2 | Ideal
From $1,253
Compare at $7,880
IGISave 82.6%3.55ct | Cushion | D | VVS2 | Excellent
From $2,065
Compare at $11,850
IGISave 87.6%3.55ct | Cushion | E | VS1 | Ideal
From $1,116
Compare at $8,970
IGISave 87.6%3.55ct | Cushion | E | VS1 | Ideal
From $1,116
Compare at $8,970
IGISave 82.2%3.55ct | Cushion | D | IF | Ideal
From $4,594
Compare at $25,820
IGISave 68.9%3.55ct | Cushion | D | VVS1 | Ideal
From $5,152
Compare at $16,560
IGISave 72.4%3.55ct | Cushion | F | VS1 | Very Good
From $3,275
Compare at $11,860
IGISave 72.6%3.55ct | Cushion | D | VVS1 | Good
From $3,174
Compare at $11,580
IGISave 85.6%3.55ct | Cushion | D | VS1 | Ideal
From $1,249
Compare at $8,690
IGISave 85.6%3.55ct | Cushion | D | VS1 | Ideal
From $1,249
Compare at $8,690
IGISave 53.4%3.55ct | Cushion | E | VS1 | Ideal
From $1,146
Compare at $2,457
Entry pricing in this category starts around $677.
What to Know When Shopping for 3.6 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $26,633 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 $1,669 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 770 comparable stones in this segment. Prices start around $677 and go up to $27,310.
Based on the latest market data, the average asking price is about $2,435 with a median around $1,669.
The observed spread is roughly $26,633 across tracked listings, which is about 97.5% 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 $1,669, 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 11 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 $26,633 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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