3.7 Carat Cushion Lab Grown Diamond Prices Comparison
As of February 2026, 3.7 carat cushion lab grown diamonds usually range from $712 to $24,570, with an average price of $3,095.In the last month, prices for these diamonds are down 3.9%.Compare 340 verified listings across 10 retailers tracked by CaratRadar.
3.7 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 340 verified 3.7-carat cushion lab grown diamonds listed across 10 online retailers. Prices in this segment range from $712 to $24,570, with an average asking price of $3,095 and a median of $2,014.
The price spread of $23,858 (97.1% 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.
340 diamonds tracked in this segment
Price range: $712 to $24,570
Average price: $3,095
Median price: $2,014
Available across 10 retailers
Savings potential: up to 97.1%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
340
$712
$3,095
$2,014
$24,570
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
GIASave 81%3.65ct | Cushion | D | IF | Ideal
From $4,737
Compare at $24,940
IGISave 56.6%3.65ct | Cushion | D | VVS2 | Ideal
From $3,200
Compare at $7,380
IGISave 62.5%3.65ct | Cushion | D | VS1 | Ideal
From $2,014
Compare at $5,370
IGISave 72.6%3.65ct | Cushion | D | VVS1 | Ideal
From $2,260
Compare at $8,240
IGISave 18.7%3.65ct | Cushion | F | VVS2 | Very Good
From $1,101
Compare at $1,355
IGISave 64.4%3.65ct | Cushion | D | VVS2 | Ideal
From $2,499
Compare at $7,010
GIASave 69.3%3.65ct | Cushion | D | VVS1 | Very Good
From $3,625
Compare at $11,810
IGISave 43.7%3.65ct | Cushion | D | VS1 | Ideal
From $2,014
Compare at $3,575
IGISave 17.3%3.65ct | Cushion | D | VVS1 | Very Good
From $1,984
Compare at $2,399
IGISave 74.8%3.65ct | Cushion | D | VVS2 | Very Good
From $1,674
Compare at $6,640
IGISave 19.4%3.65ct | Cushion | E | VVS1 | Very Good
From $2,519
Compare at $3,127
IGISave 80.8%3.65ct | Cushion | E | VVS2 | Ideal
From $2,470
Compare at $12,880
IGISave 46.4%3.65ct | Cushion | D | VVS2 | Very Good
From $1,582
Compare at $2,954
IGISave 81.6%3.65ct | Cushion | D | VVS1 | Ideal
From $2,609
Compare at $14,210
GIASave 66.1%3.65ct | Cushion | D | FL | Very Good
From $24,180
Compare at $71,260
GIASave 81%3.65ct | Cushion | D | IF | Excellent
From $4,737
Compare at $24,940
IGISave 53.7%3.65ct | Cushion | FANCY | VVS2 | Very Good
From $2,966
Compare at $6,404
IGISave 74.9%3.65ct | Cushion | D | VVS1 | Ideal
From $1,978
Compare at $7,880
IGISave 68.4%3.65ct | Cushion | D | IF | Very Good
From $5,663
Compare at $17,936
IGISave 65.1%3.65ct | Cushion | D | FL | Excellent
From $18,693
Compare at $53,637
IGISave 81.1%3.65ct | Cushion | E | VVS2 | Very Good
From $1,889
Compare at $10,000
IGISave 57.2%3.65ct | Cushion | D | VVS2 | Ideal
From $2,109
Compare at $4,928
IGISave 34.6%3.66ct | Cushion | G | VS2 | Ideal
From $1,552
Compare at $2,374
GIASave 81.3%3.66ct | Cushion | D | IF | Very Good
From $5,950
Compare at $31,772
GIASave 60.9%3.66ct | Cushion | G | VS2 | Ideal
From $3,750
Compare at $9,580
GIASave 58.7%3.66ct | Cushion | D | VVS2 | Excellent
From $5,070
Compare at $12,290
IGISave 72.9%3.66ct | Cushion | D | VVS1 | Very Good
From $3,234
Compare at $11,930
IGISave 72.8%3.66ct | Cushion | F | VVS2 | Ideal
From $1,534
Compare at $5,630
IGISave 19.1%3.66ct | Cushion | F | VVS1 | Very Good
From $1,768
Compare at $2,187
IGISave 83.5%3.66ct | Cushion | D | SI1 | Excellent
From $1,052
Compare at $6,360
IGISave 64.6%3.66ct | Cushion | D | IF | Ideal
From $6,142
Compare at $17,360
IGISave 17%3.66ct | Cushion | E | VVS2 | Very Good
From $1,516
Compare at $1,827
GIASave 65.9%3.66ct | Cushion | D | VVS1 | Very Good
From $3,605
Compare at $10,574
GIASave 81%3.66ct | Cushion | D | IF | Excellent
From $4,749
Compare at $25,000
IGISave 86%3.66ct | Cushion | H | VS2 | Ideal
From $1,033
Compare at $7,390
IGISave 76.7%3.66ct | Cushion | D | VS1 | Very Good
From $2,019
Compare at $8,680
IGISave 77.7%3.66ct | Cushion | E | VVS2 | Excellent
From $1,649
Compare at $7,393
IGISave 75.5%3.66ct | Cushion | F | VVS2 | Ideal
From $1,437
Compare at $5,870
IGISave 60.5%3.66ct | Cushion | D | VVS2 | Very Good
From $1,749
Compare at $4,425
IGISave 81.5%3.66ct | Cushion | E | VVS1 | Very Good
From $2,417
Compare at $13,090
IGISave 56.2%3.66ct | Cushion | E | VVS2 | Very Good
From $3,879
Compare at $8,850
IGI3.66ct | Cushion | E | VVS2 | Ideal
From $5,750
Compare at $6,350
IGISave 73.6%3.66ct | Cushion | F | VVS2 | Very Good
From $1,336
Compare at $5,070
IGISave 81.8%3.66ct | Cushion | E | VVS1 | Very Good
From $3,064
Compare at $16,870
IGISave 18.3%3.66ct | Cushion | F | VVS1 | Very Good
From $2,211
Compare at $2,704
IGISave 73.4%3.66ct | Cushion | D | IF | Excellent
From $6,732
Compare at $25,280
IGISave 64.8%3.66ct | Cushion | G | VS1 | Very Good
From $712
Compare at $2,022
IGISave 67.3%3.66ct | Cushion | D | IF | Very Good
From $5,880
Compare at $17,986
IGISave 18.5%3.66ct | Cushion | D | VVS2 | Very Good
From $1,251
Compare at $1,536
IGISave 77.5%3.66ct | Cushion | D | VVS2 | Ideal
From $1,799
Compare at $8,000
Entry pricing in this category starts around $712.
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 $23,858 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 $2,014 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 340 comparable stones in this segment. Prices start around $712 and go up to $24,570.
Based on the latest market data, the average asking price is about $3,095 with a median around $2,014.
The observed spread is roughly $23,858 across tracked listings, which is about 97.1% 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 $2,014, 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 10 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 $23,858 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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