6.7 Carat Cushion Lab Grown Diamond Prices Comparison
As of February 2026, 6.7 carat cushion lab grown diamonds usually range from $1,252 to $13,980, with an average price of $2,350.In the last month, prices for these diamonds are down 4.6%.Compare 57 verified listings across 5 retailers tracked by CaratRadar.
6.7 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 57 verified 6.7-carat cushion lab grown diamonds listed across 5 online retailers. Prices in this segment range from $1,252 to $13,980, with an average asking price of $2,350 and a median of $1,888.
The price spread of $12,728 (91.0% 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.
57 diamonds tracked in this segment
Price range: $1,252 to $13,980
Average price: $2,350
Median price: $1,888
Available across 5 retailers
Savings potential: up to 91.0%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
57
$1,252
$2,350
$1,888
$13,980
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 85.3%6.66ct | Cushion | E | VVS2 | Ideal
From $2,459
Compare at $16,720
IGISave 86.4%6.66ct | Cushion | E | VVS2 | Ideal
From $2,273
Compare at $16,770
IGISave 82.1%6.66ct | Cushion | G | SI1 | Very Good
From $1,676
Compare at $9,340
IGISave 82.4%6.66ct | Cushion | E | VVS2 | Very Good
From $2,958
Compare at $16,840
IGISave 51.8%6.66ct | Cushion | F | VS1 | Very Good
From $1,252
Compare at $2,597
IGISave 86.4%6.66ct | Cushion | E | VS1 | Ideal
From $2,245
Compare at $16,550
IGISave 84.2%6.66ct | Cushion | F | VVS2 | Ideal
From $2,354
Compare at $14,940
IGISave 84.2%6.66ct | Cushion | E | VVS2 | Ideal
From $1,830
Compare at $11,590
IGISave 88.1%6.66ct | Cushion | F | VVS2 | Ideal
From $1,766
Compare at $14,890
GIASave 16%6.66ct | Cushion | F | VS1 | Ideal
From $13,980
Compare at $16,650
IGISave 84.2%6.67ct | Cushion | F | VS1 | Excellent
From $2,166
Compare at $13,720
IGISave 27.4%6.67ct | Cushion | F | VS1 | Very Good
From $1,658
Compare at $2,285
IGISave 81.4%6.67ct | Cushion | E | VS2 | Ideal
From $2,466
Compare at $13,290
IGISave 31.2%6.67ct | Cushion | E | VVS2 | Very Good
From $1,874
Compare at $2,725
IGISave 56.3%6.67ct | Cushion | E | VVS2 | Very Good
From $1,855
Compare at $4,244
IGISave 72.5%6.68ct | Cushion | E | VS2 | Ideal
From $1,487
Compare at $5,410
IGISave 71.1%6.68ct | Cushion | F | VS2 | Ideal
From $1,464
Compare at $5,075
IGISave 55.3%6.68ct | Cushion | FANCY | VS2 | Excellent
From $2,466
Compare at $5,517
IGISave 27.4%6.68ct | Cushion | F | VVS2 | Very Good
From $1,681
Compare at $2,316
IGISave 31.2%6.68ct | Cushion | E | VVS2 | Very Good
From $1,877
Compare at $2,729
IGISave 85.3%6.68ct | Cushion | G | VS1 | Ideal
From $2,091
Compare at $14,180
IGISave 72.3%6.69ct | Cushion | E | VS1 | Ideal
From $1,594
Compare at $5,750
IGISave 31.2%6.69ct | Cushion | E | VVS2 | Very Good
From $1,880
Compare at $2,733
IGISave 78%6.69ct | Cushion | E | VVS2 | Excellent
From $2,434
Compare at $11,040
IGISave 72.3%6.69ct | Cushion | E | VS1 | Ideal
From $1,594
Compare at $5,750
IGISave 27.5%6.69ct | Cushion | E | VS1 | Very Good
From $1,843
Compare at $2,540
IGISave 81.2%6.69ct | Cushion | G | VS1 | Ideal
From $1,947
Compare at $10,340
IGISave 72.8%6.69ct | Cushion | D | VS2 | Ideal
From $1,834
Compare at $6,755
IGISave 31.2%6.7ct | Cushion | E | VVS2 | Very Good
From $1,882
Compare at $2,737
IGISave 83.5%6.7ct | Cushion | G | VS1 | Ideal
From $1,950
Compare at $11,810
IGISave 82.3%6.7ct | Cushion | G | VVS2 | Very Good
From $5,466
Compare at $30,920
IGISave 54%6.7ct | Cushion | F | VS1 | Ideal
From $1,637
Compare at $3,560
IGISave 81.5%6.7ct | Cushion | D | VS1 | Ideal
From $3,179
Compare at $17,180
IGISave 31.2%6.7ct | Cushion | E | VVS2 | Very Good
From $1,882
Compare at $2,737
IGISave 27.4%6.7ct | Cushion | E | VS1 | Very Good
From $1,826
Compare at $2,516
IGISave 31.2%6.7ct | Cushion | E | VVS2 | Very Good
From $1,882
Compare at $2,737
IGISave 31.2%6.7ct | Cushion | E | VVS2 | Very Good
From $1,882
Compare at $2,737
IGISave 67.9%6.7ct | Cushion | D | VS1 | Ideal
From $2,194
Compare at $6,830
IGISave 82.2%6.71ct | Cushion | G | VVS2 | Ideal
From $2,353
Compare at $13,250
IGISave 62%6.71ct | Cushion | F | VVS2 | Excellent
From $1,449
Compare at $3,818
IGISave 86.7%6.71ct | Cushion | E | VVS2 | Ideal
From $2,264
Compare at $16,960
IGISave 51.8%6.71ct | Cushion | E | VVS2 | Very Good
From $1,885
Compare at $3,908
IGISave 82.9%6.71ct | Cushion | G | VS2 | Ideal
From $2,207
Compare at $12,940
IGISave 31.2%6.72ct | Cushion | E | VVS2 | Very Good
From $1,888
Compare at $2,745
IGISave 57.2%6.72ct | Cushion | E | VVS2 | Very Good
From $1,888
Compare at $4,407
IGISave 27.4%6.72ct | Cushion | F | VVS2 | Very Good
From $1,731
Compare at $2,385
IGISave 27.4%6.73ct | Cushion | F | VVS2 | Very Good
From $1,733
Compare at $2,389
IGISave 31%6.73ct | Cushion | G | VS1 | Very Good
From $2,107
Compare at $3,055
IGISave 53.7%6.73ct | Cushion | FANCY | VS2 | Very Good
From $4,490
Compare at $9,694
GIASave 57.6%6.73ct | Cushion | E | VS1 | Ideal
From $4,788
Compare at $11,300
Entry pricing in this category starts around $1,252.
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 $12,728 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 $1,888 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 57 comparable stones in this segment. Prices start around $1,252 and go up to $13,980.
Based on the latest market data, the average asking price is about $2,350 with a median around $1,888.
The observed spread is roughly $12,728 across tracked listings, which is about 91.0% 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 $1,888, 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 5 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 $12,728 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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