6.7 Carat Cushion Lab Grown Diamond Prices Comparison
As of May 2026, 6.7 carat cushion lab grown diamonds usually range from $1,124 to $26,540, with an average price of $4,475.In the last month, prices for these diamonds are down 10.6%.Compare 37 verified listings across 4 retailers tracked by CaratRadar.
6.7 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 37 verified 6.7-carat cushion lab grown diamonds listed across 4 online retailers. Prices in this segment range from $1,124 to $26,540, with an average asking price of $4,475 and a median of $3,432.
The price spread of $25,416 (95.8% 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.
37 diamonds tracked in this segment
Price range: $1,124 to $26,540
Average price: $4,475
Median price: $3,432
Available across 4 retailers
Savings potential: up to 95.8%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
37
$1,124
$4,475
$3,432
$26,540
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 68.4%IGI | 6.72ct | Cushion | F | VVS2 | Very Good
From $1,185
Compare at $3,747
Save 68.6%IGI | 6.76ct | Cushion | F | VVS2 | Very Good
From $1,190
Compare at $3,790
Save 68.6%IGI | 6.76ct | Cushion | F | VVS2 | Very Good
From $1,190
Compare at $3,790
Save 68.7%IGI | 6.79ct | Cushion | F | VVS2 | Very Good
From $1,195
Compare at $3,822
Save 68.7%IGI | 6.79ct | Cushion | F | VVS2 | Very Good
From $1,195
Compare at $3,822
Save 67.9%IGI | 6.79ct | Cushion | E | VS1 | Very Good
From $1,230
Compare at $3,831
Save 66.9%IGI | 6.71ct | Cushion | F | VVS2 | Excellent
From $1,237
Compare at $3,740
Save 67%IGI | 6.73ct | Cushion | F | VVS2 | Very Good
From $1,240
Compare at $3,758
Save 69%IGI | 6.74ct | Cushion | E | VVS2 | Very Good
From $1,245
Compare at $4,018
Save 67.1%IGI | 6.75ct | Cushion | F | VVS2 | Very Good
From $1,245
Compare at $3,779
Save 69%IGI | 6.74ct | Cushion | E | VVS2 | Very Good
From $1,245
Compare at $4,018
Save 69%IGI | 6.75ct | Cushion | E | VVS2 | Very Good
From $1,250
Compare at $4,029
Save 69%IGI | 6.75ct | Cushion | E | VVS2 | Very Good
From $1,250
Compare at $4,029
Save 69%IGI | 6.75ct | Cushion | E | VVS2 | Very Good
From $1,250
Compare at $4,029
Save 68.6%IGI | 6.72ct | Cushion | E | VVS2 | Very Good
From $1,255
Compare at $3,998
Save 68.9%IGI | 6.77ct | Cushion | E | VVS2 | Very Good
From $1,260
Compare at $4,054
Save 66.8%IGI | 6.78ct | Cushion | E | VS1 | Excellent
From $1,266
Compare at $3,819
Save 67.8%IGI | 6.71ct | Cushion | E | VVS2 | Very Good
From $1,282
Compare at $3,983
Save 67.9%IGI | 6.72ct | Cushion | E | VVS2 | Very Good
From $1,284
Compare at $3,995
Save 68%IGI | 6.74ct | Cushion | E | VVS2 | Excellent
From $1,287
Compare at $4,018
Save 68%IGI | 6.74ct | Cushion | E | VVS2 | Very Good
From $1,287
Compare at $4,018
Save 68%IGI | 6.74ct | Cushion | E | VVS2 | Very Good
From $1,287
Compare at $4,018
Save 68%IGI | 6.74ct | Cushion | E | VVS2 | Very Good
From $1,287
Compare at $4,018
Save 68%IGI | 6.75ct | Cushion | E | VVS2 | Very Good
From $1,289
Compare at $4,029
Save 68.1%IGI | 6.78ct | Cushion | E | VVS2 | Very Good
From $1,295
Compare at $4,063
Save 68.1%IGI | 6.78ct | Cushion | E | VVS2 | Very Good
From $1,295
Compare at $4,063
Save 66.2%IGI | 6.79ct | Cushion | E | VS1 | Very Good
From $1,296
Compare at $3,837
Save 68.2%IGI | 6.79ct | Cushion | E | VVS2 | Very Good
From $1,296
Compare at $4,075
Save 67.7%IGI | 6.76ct | Cushion | E | VVS2 | Very Good
From $1,305
Compare at $4,043
Save 77.6%IGI | 6.76ct | Cushion | H | VVS2 | Ideal
From $2,546
Compare at $11,370
Save 39.5%IGI | 6.78ct | Cushion | E | VVS2 | Excellent
From $2,786
Compare at $4,603
Save 78.2%IGI | 6.71ct | Cushion | G | VVS2 | Ideal
From $2,893
Compare at $13,250
Save 77.2%IGI | 6.74ct | Cushion | F | VS1 | Ideal
From $3,269
Compare at $14,320
Save 67.1%IGI | 6.76ct | Cushion | FANCY | VS1 | Very Good
From $3,421
Compare at $10,386
Save 78.5%GIA | 6.73ct | Cushion | E | VS1 | Ideal
From $3,621
Compare at $16,860
Save 66.8%IGI | 6.74ct | Cushion | FANCY | VS1 | Good
From $4,066
Compare at $12,263
Save 42.9%IGI | 6.72ct | Cushion | E | VVS2 | Very Good
From $4,166
Compare at $7,301
Entry pricing in this category starts around $1,124.
What to Know When Shopping for 6.7 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $25,416 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 $3,432 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 37 comparable stones in this segment. Prices start around $1,124 and go up to $26,540.
Based on the latest market data, the average asking price is about $4,475 with a median around $3,432.
The observed spread is roughly $25,416 across tracked listings, which is about 95.8% 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 $4,475. The median price is $3,432, 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 4 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 $25,416 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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