6 Carat Cushion Lab Grown Diamond Prices Comparison
As of April 2026, 6 carat cushion lab grown diamonds usually range from $665 to $31,384, with an average price of $5,111.In the last month, prices for these diamonds are up 0.5%.Compare 444 verified listings across 7 retailers tracked by CaratRadar.
6 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 444 verified 6-carat cushion lab grown diamonds listed across 7 online retailers. Prices in this segment range from $665 to $31,384, with an average asking price of $5,111 and a median of $3,639.
The price spread of $30,718 (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.
444 diamonds tracked in this segment
Price range: $665 to $31,384
Average price: $5,111
Median price: $3,639
Available across 7 retailers
Savings potential: up to 97.9%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
444
$665
$5,111
$3,639
$31,384
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 73.7%GIA | 6ct | Cushion | D | VVS1 | Excellent
From $19,140
Compare at $72,680
Save 75.6%GIA | 6ct | Cushion | F | VVS2 | Excellent
From $9,529
Compare at $39,100
Save 66.9%IGI | 6ct | Cushion | G | VS2 | Ideal
From $1,886
Compare at $5,690
Save 75%IGI | 6ct | Cushion | G | VS1 | Ideal
From $1,873
Compare at $7,490
Save 74.6%IGI | 6ct | Cushion | G | VVS2 | Ideal
From $2,384
Compare at $9,390
Save 74.6%IGI | 6ct | Cushion | F | VS1 | Excellent
From $2,708
Compare at $10,660
Save 76.4%IGI | 6ct | Cushion | E | VVS2 | Excellent
From $6,480
Compare at $27,470
Save 41.3%IGI | 6ct | Cushion | E | VVS2 | Ideal
From $2,159
Compare at $3,677
Save 84.6%IGI | 6ct | Cushion | E | VS1 | Excellent
From $1,841
Compare at $11,923
Save 76.4%IGI | 6ct | Cushion | E | VVS1 | Excellent
From $9,624
Compare at $40,730
Save 72.8%IGI | 6ct | Cushion | E | VS2 | Excellent
From $2,151
Compare at $7,900
Save 85.2%IGI | 6ct | Cushion | E | VS1 | Very Good
From $2,220
Compare at $15,000
Save 81.7%IGI | 6ct | Cushion | F | VS1 | Very Good
From $1,965
Compare at $10,710
Save 85.8%IGI | 6ct | Cushion | E | VS2 | Excellent
From $1,690
Compare at $11,920
Save 75.9%IGI | 6ct | Cushion | F | VVS2 | Ideal
From $1,643
Compare at $6,810
Save 58.4%IGI | 6ct | Cushion | D | VS1 | Very Good
From $2,546
Compare at $6,120
Save 77.2%IGI | 6ct | Cushion | E | VVS2 | Excellent
From $1,839
Compare at $8,060
Save 85%IGI | 6ct | Cushion | G | VVS2 | Ideal
From $1,796
Compare at $11,940
Save 74.5%IGI | 6ct | Cushion | F | VVS2 | Excellent
From $2,795
Compare at $10,950
Save 52.7%IGI | 6ct | Cushion | G | VVS1 | Very Good
From $6,300
Compare at $13,330
Save 81.8%IGI | 6ct | Cushion | D | VVS2 | Very Good
From $3,255
Compare at $17,860
Save 85.2%IGI | 6ct | Cushion | E | VS2 | Ideal
From $1,761
Compare at $11,920
Save 55%IGI | 6ct | Cushion | F | VS1 | Ideal
From $3,450
Compare at $7,660
Save 85.8%IGI | 6ct | Cushion | F | VVS2 | Very Good
From $1,907
Compare at $13,450
Save 84.9%IGI | 6ct | Cushion | G | VVS2 | Good
From $1,796
Compare at $11,920
Save 82.9%IGI | 6ct | Cushion | F | VS1 | Very Good
From $2,134
Compare at $12,450
Save 11.9%GIA | 6.01ct | Cushion | E | IF | Excellent
From $27,230
Compare at $30,895
Save 72.5%GIA | 6.01ct | Cushion | F | VS1 | Ideal
From $3,438
Compare at $12,500
Save 71.8%IGI | 6.01ct | Cushion | H | VVS2 | Ideal
From $2,850
Compare at $10,110
Save 84.7%IGI | 6.01ct | Cushion | G | VVS2 | Very Good
From $1,822
Compare at $11,940
Save 13.1%IGI | 6.01ct | Cushion | H | VS1 | Ideal
From $3,403
Compare at $3,915
Save 76.4%IGI | 6.01ct | Cushion | G | VS1 | Ideal
From $1,876
Compare at $7,940
Save 30.9%IGI | 6.01ct | Cushion | G | VS1 | Excellent
From $2,108
Compare at $3,051
Save 69%IGI | 6.01ct | Cushion | G | VS2 | Ideal
From $1,889
Compare at $6,100
Save 77.6%IGI | 6.01ct | Cushion | G | VS1 | Ideal
From $1,876
Compare at $8,390
Save 72.4%IGI | 6.01ct | Cushion | D | VS1 | Excellent
From $3,170
Compare at $11,490
Save 75.8%IGI | 6.01ct | Cushion | D | VS1 | Ideal
From $3,170
Compare at $13,080
Save 75.8%IGI | 6.01ct | Cushion | D | VS1 | Ideal
From $3,170
Compare at $13,080
Save 76.4%IGI | 6.01ct | Cushion | E | VVS2 | Excellent
From $6,491
Compare at $27,510
Save 85.6%IGI | 6.01ct | Cushion | E | VS1 | Excellent
From $2,154
Compare at $14,940
Save 74.7%IGI | 6.01ct | Cushion | G | VS1 | Ideal
From $2,302
Compare at $9,100
Save 74.6%IGI | 6.01ct | Cushion | G | VVS2 | Excellent
From $2,388
Compare at $9,410
Save 74.5%IGI | 6.01ct | Cushion | F | VVS2 | Excellent
From $2,800
Compare at $10,970
Save 67%IGI | 6.01ct | Cushion | E | VVS1 | Ideal
From $5,613
Compare at $16,990
Save 77.2%IGI | 6.01ct | Cushion | E | VVS2 | Ideal
From $1,859
Compare at $8,150
Save 87.3%IGI | 6.01ct | Cushion | F | VVS2 | Ideal
From $1,698
Compare at $13,400
Save 84.3%IGI | 6.01ct | Cushion | E | SI1 | Ideal
From $1,531
Compare at $9,740
Save 75.9%IGI | 6.01ct | Cushion | F | VVS2 | Excellent
From $1,733
Compare at $7,190
Save 75.9%IGI | 6.01ct | Cushion | F | VVS2 | Ideal
From $1,733
Compare at $7,190
Save 83.3%IGI | 6.01ct | Cushion | G | VS2 | Ideal
From $1,638
Compare at $9,820
Entry pricing in this category starts around $665.
What to Know When Shopping for 6 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $30,718 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 $3,639 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 444 comparable stones in this segment. Prices start around $665 and go up to $31,384.
Based on the latest market data, the average asking price is about $5,111 with a median around $3,639.
The observed spread is roughly $30,718 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 $3,639, 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 7 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 $30,718 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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