4.6 Carat Cushion Lab Grown Diamond Prices Comparison
As of May 2026, 4.6 carat cushion lab grown diamonds usually range from $645 to $31,482, with an average price of $4,401.In the last month, prices for these diamonds are down 7.9%.Compare 94 verified listings across 8 retailers tracked by CaratRadar.
4.6 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 94 verified 4.6-carat cushion lab grown diamonds listed across 8 online retailers. Prices in this segment range from $645 to $31,482, with an average asking price of $4,401 and a median of $3,029.
The price spread of $30,837 (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.
94 diamonds tracked in this segment
Price range: $645 to $31,482
Average price: $4,401
Median price: $3,029
Available across 8 retailers
Savings potential: up to 98.0%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
94
$645
$4,401
$3,029
$31,482
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 70.8%IGI | 4.7ct | Cushion | F | VS2 | Ideal
From $881
Compare at $3,014
Save 76%IGI | 4.62ct | Cushion | E | VS1 | Ideal
From $898
Compare at $3,740
Save 76%IGI | 4.62ct | Cushion | E | VS1 | Ideal
From $898
Compare at $3,740
Save 76%IGI | 4.68ct | Cushion | E | VS1 | Ideal
From $910
Compare at $3,790
Save 76%IGI | 4.69ct | Cushion | E | VS1 | Ideal
From $912
Compare at $3,795
Save 27.1%IGI | 4.61ct | Cushion | E | VS1 | Very Good
From $915
Compare at $1,256
Save 75.8%IGI | 4.69ct | Cushion | E | VS1 | Ideal
From $920
Compare at $3,795
Save 71.7%IGI | 4.66ct | Cushion | F | VS2 | Excellent
From $944
Compare at $3,331
Save 61.7%IGI | 4.64ct | Cushion | F | VVS2 | Ideal
From $965
Compare at $2,518
Save 63.7%IGI | 4.62ct | Cushion | E | VVS2 | Very Good
From $985
Compare at $2,717
Save 58.5%IGI | 4.6ct | Cushion | F | VVS2 | Excellent
From $1,035
Compare at $2,493
Save 33.4%IGI | 4.62ct | Cushion | F | VS2 | Ideal
From $1,045
Compare at $1,570
Save 60%IGI | 4.62ct | Cushion | E | VS1 | Very Good
From $1,098
Compare at $2,743
Save 12.8%IGI | 4.7ct | Cushion | G | VVS2 | Ideal
From $1,102
Compare at $1,264
Save 59.1%IGI | 4.63ct | Cushion | E | VS1 | Very Good
From $1,125
Compare at $2,753
IGI | 4.62ct | Cushion | F | VS1 | Very Good
From $1,166
Compare at $1,182
IGI | 4.65ct | Cushion | F | VS1 | Good
From $1,173
Compare at $1,189
IGI | 4.65ct | Cushion | F | VS1 | Very Good
From $1,173
Compare at $1,189
IGI | 4.61ct | Cushion | E | VVS2 | Very Good
From $1,194
Compare at $1,211
Save 14.9%IGI | 4.63ct | Cushion | E | VVS2 | Excellent
From $1,247
Compare at $1,465
Save 54.8%IGI | 4.6ct | Cushion | E | VVS2 | Very Good
From $1,249
Compare at $2,763
Save 72.9%IGI | 4.61ct | Cushion | FANCY | VS1 | Very Good
From $1,315
Compare at $4,846
Save 72.9%IGI | 4.62ct | Cushion | FANCY | VS1 | Very Good
From $1,318
Compare at $4,857
Save 57.7%IGI | 4.68ct | Cushion | F | VS2 | Ideal
From $1,323
Compare at $3,127
Save 53.7%IGI | 4.69ct | Cushion | E | VS1 | Very Good
From $1,353
Compare at $2,920
Save 53%IGI | 4.7ct | Cushion | E | VVS2 | Very Good
From $1,357
Compare at $2,888
Save 50.7%IGI | 4.61ct | Cushion | E | VS1 | Very Good
From $1,384
Compare at $2,805
Save 51.4%IGI | 4.65ct | Cushion | E | VS1 | Fair
From $1,397
Compare at $2,875
Save 72.9%IGI | 4.6ct | Cushion | FANCY | VS1 | Very Good
From $1,514
Compare at $5,580
Save 41.2%IGI | 4.7ct | Cushion | F | VVS2 | Good
From $1,585
Compare at $2,694
Save 40%GIA | 4.64ct | Cushion | G | VS2 | Ideal
From $1,665
Compare at $2,775
Save 20.8%IGI | 4.64ct | Cushion | E | VVS2 | Very Good
From $1,778
Compare at $2,246
Save 35.1%IGI | 4.61ct | Cushion | F | VS1 | Very Good
From $1,787
Compare at $2,754
Save 36.8%IGI | 4.62ct | Cushion | E | VS1 | Ideal
From $1,878
Compare at $2,972
Save 76.4%IGI | 4.6ct | Cushion | G | VVS2 | Ideal
From $1,880
Compare at $7,970
Save 37.9%IGI | 4.6ct | Cushion | E | VS1 | Very Good
From $1,918
Compare at $3,089
Save 38%IGI | 4.66ct | Cushion | E | VS1 | Very Good
From $1,941
Compare at $3,129
Save 37.9%IGI | 4.68ct | Cushion | E | VS1 | Very Good
From $1,950
Compare at $3,142
Save 78.3%GCAL | 4.6ct | Cushion | F | VVS2 | Excellent
From $2,017
Compare at $9,290
Save 41.2%IGI | 4.66ct | Cushion | E | VVS2 | Very Good
From $2,050
Compare at $3,489
Save 37.3%IGI | 4.63ct | Cushion | E | VVS2 | Very Good
From $2,110
Compare at $3,368
Save 69.9%IGI | 4.7ct | Cushion | E | VVS2 | Ideal
From $2,112
Compare at $7,020
Save 37.4%IGI | 4.65ct | Cushion | E | VVS2 | Very Good
From $2,118
Compare at $3,382
Save 35.6%IGI | 4.66ct | Cushion | E | VVS2 | Very Good
From $2,137
Compare at $3,316
Save 64.5%IGI | 4.62ct | Cushion | FANCY | VS1 | Excellent
From $2,150
Compare at $6,052
Save 74.3%IGI | 4.69ct | Cushion | FANCY | VS1 | Excellent
From $2,177
Compare at $8,465
Save 61.7%IGI | 4.6ct | Cushion | E | VVS1 | Very Good
From $2,264
Compare at $5,913
Save 61.8%IGI | 4.61ct | Cushion | E | VVS1 | Very Good
From $2,269
Compare at $5,937
Save 62.1%IGI | 4.65ct | Cushion | E | VVS1 | Very Good
From $2,288
Compare at $6,034
Save 62.4%IGI | 4.7ct | Cushion | E | VVS1 | Very Good
From $2,313
Compare at $6,157
Entry pricing in this category starts around $645.
What to Know When Shopping for 4.6 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $30,837 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 $3,029 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 94 comparable stones in this segment. Prices start around $645 and go up to $31,482.
Based on the latest market data, the average asking price is about $4,401 with a median around $3,029.
The observed spread is roughly $30,837 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 $4,401. The median price is $3,029, 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 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 $30,837 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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