3.7 Carat Cushion Lab Grown Diamond Prices Comparison
As of July 2026, 3.7 carat cushion lab grown diamonds usually range from $548 to $25,650, with an average price of $3,886.In the last month, prices for these diamonds are down 3.6%.Compare 185 verified listings across 6 retailers tracked by CaratRadar.
3.7 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 185 verified 3.7-carat cushion lab grown diamonds listed across 6 online retailers. Prices in this segment range from $548 to $25,650, with an average asking price of $3,886 and a median of $2,789.
The price spread of $25,102 (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.
185 diamonds tracked in this segment
Price range: $548 to $25,650
Average price: $3,886
Median price: $2,789
Available across 6 retailers
Savings potential: up to 97.9%
Price Range Overview
As of Jul 13, 2026Real market range for this carat, shape, and diamond type.
185
$548
$3,886
$2,789
$25,650
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 69.2%IGI | 3.72ct | Cushion | F | VS2 | Ideal
From $687
Compare at $2,233
Save 68.9%IGI | 3.76ct | Cushion | E | VS1 | Excellent
From $688
Compare at $2,212
Save 69%IGI | 3.78ct | Cushion | E | VS1 | Excellent
From $693
Compare at $2,234
Save 68.7%IGI | 3.78ct | Cushion | E | VS1 | Excellent
From $700
Compare at $2,236
Save 62.8%IGI | 3.72ct | Cushion | F | VS1 | Very Good
From $735
Compare at $1,974
Save 64.2%IGI | 3.77ct | Cushion | F | VS1 | Excellent
From $736
Compare at $2,056
Save 71.6%IGI | 3.72ct | Cushion | F | VVS2 | Very Good
From $754
Compare at $2,655
Save 74.2%IGI | 3.72ct | Cushion | FANCY | VVS2 | Very Good
From $764
Compare at $2,965
Save 67.5%IGI | 3.76ct | Cushion | E | VVS2 | Excellent
From $785
Compare at $2,415
Save 65.5%IGI | 3.78ct | Cushion | E | VVS2 | Very Good
From $814
Compare at $2,358
Save 65.7%IGI | 3.74ct | Cushion | E | VVS2 | Ideal
From $815
Compare at $2,374
Save 65.9%IGI | 3.76ct | Cushion | E | VVS2 | Excellent
From $819
Compare at $2,399
Save 74.2%IGI | 3.73ct | Cushion | FANCY | VS1 | Very Good
From $833
Compare at $3,232
Save 72.4%IGI | 3.72ct | Cushion | F | VVS2 | Very Good
From $844
Compare at $3,053
Save 78.2%IGI | 3.79ct | Cushion | E | VVS2 | Excellent
From $881
Compare at $4,039
Save 67.5%IGI | 3.75ct | Cushion | E | VVS2 | Ideal
From $897
Compare at $2,757
Save 68.1%IGI | 3.79ct | Cushion | D | VVS2 | Excellent
From $898
Compare at $2,819
Save 64.1%IGI | 3.76ct | Cushion | D | VS1 | Very Good
From $910
Compare at $2,533
Save 74.2%IGI | 3.71ct | Cushion | FANCY | VS1 | Very Good
From $911
Compare at $3,536
Save 58.7%IGI | 3.75ct | Cushion | F | VVS2 | Very Good
From $913
Compare at $2,208
Save 74.2%IGI | 3.73ct | Cushion | FANCY | VS1 | Very Good
From $916
Compare at $3,555
IGI | 3.78ct | Cushion | FANCY | VVS2 | Very Good
From $920
Compare at $2,300
Save 67.6%IGI | 3.73ct | Cushion | D | VVS2 | Excellent
From $928
Compare at $2,865
Save 29.9%IGI | 3.74ct | Cushion | E | VS1 | Excellent
From $930
Compare at $1,327
Save 56%IGI | 3.72ct | Cushion | E | VS1 | Very Good
From $934
Compare at $2,123
Save 59.4%IGI | 3.71ct | Cushion | E | VVS2 | Excellent
From $936
Compare at $2,308
Save 53.2%IGI | 3.75ct | Cushion | F | VS1 | Very Good
From $937
Compare at $2,000
Save 56.8%IGI | 3.73ct | Cushion | E | VS1 | Very Good
From $946
Compare at $2,188
Save 56.8%IGI | 3.74ct | Cushion | F | VVS2 | Very Good
From $952
Compare at $2,205
Save 67.3%IGI | 3.71ct | Cushion | F | VVS2 | Excellent
From $955
Compare at $2,924
Save 65.3%IGI | 3.76ct | Cushion | E | VVS2 | Excellent
From $960
Compare at $2,763
Save 30.4%IGI | 3.72ct | Cushion | F | VVS2 | Excellent
From $960
Compare at $1,380
Save 30.6%IGI | 3.75ct | Cushion | F | VVS2 | Excellent
From $965
Compare at $1,391
Save 44.8%IGI | 3.71ct | Cushion | E | VS1 | Very Good
From $969
Compare at $1,755
Save 30.8%IGI | 3.78ct | Cushion | F | VVS2 | Excellent
From $970
Compare at $1,402
Save 30.7%IGI | 3.79ct | Cushion | F | VVS2 | Excellent
From $975
Compare at $1,406
Save 45.7%IGI | 3.76ct | Cushion | E | VS1 | Very Good
From $977
Compare at $1,799
IGI | 3.77ct | Cushion | E | VVS2 | Ideal
From $983
Compare at $985
Save 71.6%IGI | 3.72ct | Cushion | F | VVS2 | Very Good
From $988
Compare at $3,481
Save 67.5%IGI | 3.74ct | Cushion | D | VS1 | Excellent
From $990
Compare at $3,046
Save 67.7%IGI | 3.76ct | Cushion | E | VVS2 | Very Good
From $1,020
Compare at $3,159
Save 67.8%IGI | 3.79ct | Cushion | E | VVS2 | Very Good
From $1,025
Compare at $3,183
Save 67.7%IGI | 3.72ct | Cushion | D | VVS2 | Very Good
From $1,025
Compare at $3,175
Save 46.9%IGI | 3.77ct | Cushion | E | VVS2 | Very Good
From $1,026
Compare at $1,934
Save 46.9%IGI | 3.77ct | Cushion | E | VVS2 | Very Good
From $1,026
Compare at $1,934
Save 67.6%IGI | 3.73ct | Cushion | E | VVS2 | Excellent
From $1,032
Compare at $3,186
Save 65.8%IGI | 3.76ct | Cushion | E | VVS2 | Very Good
From $1,040
Compare at $3,044
Save 65.8%IGI | 3.76ct | Cushion | E | VVS2 | Very Good
From $1,040
Compare at $3,044
Save 74.2%IGI | 3.78ct | Cushion | FANCY | VS1 | Very Good
From $1,047
Compare at $4,061
Save 66.7%IGI | 3.74ct | Cushion | F | VVS2 | Very Good
From $1,070
Compare at $3,214
Entry pricing in this category starts around $548.
What to Know When Shopping for 3.7 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $25,102 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 $2,789 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 185 comparable stones in this segment. Prices start around $548 and go up to $25,650.
Based on the latest market data, the average asking price is about $3,886 with a median around $2,789.
The observed spread is roughly $25,102 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 completed market data, the fair market benchmark is $3,886. The median price is $2,789, 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 6 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 $25,102 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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