3.6 Carat Cushion Lab Grown Diamond Prices Comparison
As of May 2026, 3.6 carat cushion lab grown diamonds usually range from $545 to $27,149, with an average price of $4,134.In the last month, prices for these diamonds are down 7.6%.Compare 152 verified listings across 9 retailers tracked by CaratRadar.
3.6 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 152 verified 3.6-carat cushion lab grown diamonds listed across 9 online retailers. Prices in this segment range from $545 to $27,149, with an average asking price of $4,134 and a median of $3,125.
The price spread of $26,604 (98.0% 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.
152 diamonds tracked in this segment
Price range: $545 to $27,149
Average price: $4,134
Median price: $3,125
Available across 9 retailers
Savings potential: up to 98.0%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
152
$545
$4,134
$3,125
$27,149
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 79%IGI | 3.64ct | Cushion | H | VS1 | Ideal
From $710
Compare at $3,380
Save 64.2%IGI | 3.63ct | Cushion | E | VS1 | Ideal
From $728
Compare at $2,034
Save 61.9%IGI | 3.7ct | Cushion | E | VS2 | Very Good
From $742
Compare at $1,945
Save 63.8%IGI | 3.67ct | Cushion | E | VS1 | Very Good
From $752
Compare at $2,080
Save 72.4%IGI | 3.61ct | Cushion | FANCY | VVS2 | Very Good
From $806
Compare at $2,919
Save 60.7%IGI | 3.68ct | Cushion | F | VVS2 | Very Good
From $833
Compare at $2,118
Save 13.2%IGI | 3.64ct | Cushion | H | VS1 | Very Good
From $862
Compare at $993
Save 79.7%IGI | 3.7ct | Cushion | E | VS2 | Ideal
From $873
Compare at $4,310
Save 61.6%IGI | 3.7ct | Cushion | E | VVS2 | Very Good
From $877
Compare at $2,284
Save 50.2%IGI | 3.69ct | Cushion | G | VS1 | Ideal
From $879
Compare at $1,766
Save 59%IGI | 3.62ct | Cushion | F | VVS2 | Ideal
From $881
Compare at $2,148
Save 72.4%IGI | 3.61ct | Cushion | FANCY | VS1 | Excellent
From $887
Compare at $3,211
Save 77.3%IGI | 3.65ct | Cushion | F | VS2 | Ideal
From $890
Compare at $3,920
Save 61%IGI | 3.7ct | Cushion | E | VVS2 | Very Good
From $892
Compare at $2,287
Save 26.9%IGI | 3.61ct | Cushion | F | VS1 | Very Good
From $898
Compare at $1,228
Save 24.5%IGI | 3.68ct | Cushion | E | VS1 | Excellent
From $913
Compare at $1,209
Save 58.5%IGI | 3.65ct | Cushion | E | VVS2 | Very Good
From $929
Compare at $2,240
Save 57.7%IGI | 3.63ct | Cushion | E | VVS2 | Very Good
From $940
Compare at $2,220
Save 72.4%IGI | 3.68ct | Cushion | FANCY | VVS2 | Good
From $945
Compare at $3,422
Save 58.2%IGI | 3.68ct | Cushion | E | VVS2 | Very Good
From $953
Compare at $2,279
Save 55.8%IGI | 3.7ct | Cushion | F | VVS2 | Very Good
From $957
Compare at $2,167
Save 13.6%IGI | 3.65ct | Cushion | F | VS1 | Good
From $970
Compare at $1,123
Save 79.9%IGI | 3.68ct | Cushion | H | VVS2 | Ideal
From $972
Compare at $4,830
Save 44.3%IGI | 3.68ct | Cushion | G | VS1 | Very Good
From $993
Compare at $1,783
Save 55.7%IGI | 3.68ct | Cushion | E | VVS2 | Very Good
From $1,016
Compare at $2,294
Save 57.4%IGI | 3.67ct | Cushion | D | VS1 | Very Good
From $1,028
Compare at $2,411
Save 61.4%IGI | 3.65ct | Cushion | D | VVS2 | Very Good
From $1,028
Compare at $2,661
Save 61.9%IGI | 3.67ct | Cushion | D | VVS2 | Very Good
From $1,035
Compare at $2,714
Save 61.9%IGI | 3.67ct | Cushion | D | VVS2 | Very Good
From $1,035
Compare at $2,714
Save 49.7%IGI | 3.62ct | Cushion | F | VVS2 | Ideal
From $1,036
Compare at $2,060
Save 50.8%IGI | 3.64ct | Cushion | F | VVS2 | Very Good
From $1,050
Compare at $2,134
Save 53.2%IGI | 3.64ct | Cushion | E | VVS2 | Very Good
From $1,053
Compare at $2,248
Save 60.8%IGI | 3.65ct | Cushion | D | VVS2 | Very Good
From $1,055
Compare at $2,688
Save 53.4%IGI | 3.66ct | Cushion | E | VVS2 | Very Good
From $1,058
Compare at $2,271
Save 37.3%IGI | 3.61ct | Cushion | G | VS1 | Very Good
From $1,066
Compare at $1,701
Save 50.1%IGI | 3.65ct | Cushion | E | VS1 | Very Good
From $1,068
Compare at $2,141
Save 54.7%IGI | 3.62ct | Cushion | D | VS1 | Ideal
From $1,077
Compare at $2,380
Save 69.9%IGI | 3.66ct | Cushion | D | VS1 | Very Good
From $1,079
Compare at $3,585
IGI | 3.66ct | Cushion | FANCY | VS1 | Ideal
From $1,089
Compare at $4,380
Save 50.2%IGI | 3.7ct | Cushion | E | VS1 | Ideal
From $1,096
Compare at $2,201
Save 58.6%IGI | 3.63ct | Cushion | D | VVS2 | Very Good
From $1,101
Compare at $2,658
Save 59%IGI | 3.65ct | Cushion | D | VVS2 | Very Good
From $1,103
Compare at $2,688
Save 74.6%IGI | 3.61ct | Cushion | D | VVS2 | Very Good
From $1,108
Compare at $4,365
Save 76.7%IGI | 3.61ct | Cushion | F | VVS2 | Ideal
From $1,110
Compare at $4,760
Save 75.3%IGI | 3.64ct | Cushion | G | VVS2 | Ideal
From $1,112
Compare at $4,500
Save 25.4%IGI | 3.67ct | Cushion | E | VS1 | Very Good
From $1,124
Compare at $1,507
Save 44.4%IGI | 3.7ct | Cushion | E | VS2 | Very Good
From $1,136
Compare at $2,045
Save 51.4%IGI | 3.7ct | Cushion | E | VVS2 | Very Good
From $1,144
Compare at $2,353
Save 50.6%IGI | 3.67ct | Cushion | E | VVS2 | Very Good
From $1,150
Compare at $2,327
IGI | 3.64ct | Cushion | FANCY | VS1 | Very Good
From $1,156
Compare at $3,380
Entry pricing in this category starts around $545.
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 $26,604 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 $3,125 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 152 comparable stones in this segment. Prices start around $545 and go up to $27,149.
Based on the latest market data, the average asking price is about $4,134 with a median around $3,125.
The observed spread is roughly $26,604 across tracked listings, which is about 98.0% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $4,134. The median price is $3,125, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
We currently track this stone category across 9 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 $26,604 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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