3.4 Carat Cushion Lab Grown Diamond Prices Comparison
As of April 2026, 3.4 carat cushion lab grown diamonds usually range from $625 to $23,097, with an average price of $4,332.In the last month, prices for these diamonds are down 0.8%.Compare 217 verified listings across 10 retailers tracked by CaratRadar.
3.4 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 217 verified 3.4-carat cushion lab grown diamonds listed across 10 online retailers. Prices in this segment range from $625 to $23,097, with an average asking price of $4,332 and a median of $3,480.
The price spread of $22,472 (97.3% 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.
217 diamonds tracked in this segment
Price range: $625 to $23,097
Average price: $4,332
Median price: $3,480
Available across 10 retailers
Savings potential: up to 97.3%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
217
$625
$4,332
$3,480
$23,097
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 71.4%GIA | 3.4ct | Cushion | D | VS1 | Excellent
From $3,224
Compare at $11,270
Save 76.4%IGI | 3.4ct | Cushion | G | VS2 | Ideal
From $875
Compare at $3,700
IGI | 3.4ct | Cushion | I | VS1 | Ideal
From $1,266
Compare at $1,991
Save 60.7%IGI | 3.4ct | Cushion | I | VS1 | Ideal
From $2,097
Compare at $5,340
Save 73.1%IGI | 3.4ct | Cushion | G | VS1 | Ideal
From $1,039
Compare at $3,860
Save 75.1%IGI | 3.4ct | Cushion | E | SI1 | Ideal
From $1,364
Compare at $5,470
Save 64.6%IGI | 3.4ct | Cushion | D | VVS1 | Very Good
From $3,109
Compare at $8,790
Save 73.2%IGI | 3.4ct | Cushion | D | IF | Very Good
From $5,217
Compare at $19,490
Save 74.4%IGI | 3.4ct | Cushion | D | IF | Excellent
From $5,220
Compare at $20,390
Save 77.1%IGI | 3.4ct | Cushion | D | VS1 | Ideal
From $2,032
Compare at $8,890
Save 76.5%IGI | 3.4ct | Cushion | E | VVS1 | Ideal
From $2,224
Compare at $9,480
Save 78.3%IGI | 3.4ct | Cushion | D | VS1 | Ideal
From $1,045
Compare at $4,820
Save 51.6%IGI | 3.4ct | Cushion | D | VVS2 | Very Good
From $1,990
Compare at $4,110
Save 71.5%IGI | 3.4ct | Cushion | E | VVS2 | Very Good
From $2,560
Compare at $8,970
Save 71.4%IGI | 3.4ct | Cushion | D | VVS2 | Very Good
From $2,752
Compare at $9,630
Save 75.6%IGI | 3.4ct | Cushion | D | IF | Ideal
From $4,940
Compare at $20,240
Save 67.5%IGI | 3.4ct | Cushion | D | VVS1 | Very Good
From $2,937
Compare at $9,047
Save 71.5%IGI | 3.4ct | Cushion | F | VVS1 | Very Good
From $2,560
Compare at $8,970
Save 74.5%IGI | 3.4ct | Cushion | E | VVS2 | Very Good
From $1,267
Compare at $4,970
Save 82.7%IGI | 3.4ct | Cushion | E | VVS2 | Very Good
From $1,250
Compare at $7,220
Save 85.7%IGI | 3.4ct | Cushion | E | VS1 | Very Good
From $1,045
Compare at $7,330
Save 57.3%IGI | 3.4ct | Cushion | D | FL | Excellent
From $6,960
Compare at $16,293
Save 76.9%GCAL | 3.41ct | Cushion | E | VS2 | Excellent
From $1,554
Compare at $6,740
Save 72.5%GIA | 3.41ct | Cushion | D | VVS1 | Excellent
From $3,219
Compare at $11,710
GIA | 3.41ct | Cushion | E | VS2 | Ideal
From $3,970
Compare at $4,177
Save 71%IGI | 3.41ct | Cushion | F | VS2 | Very Good
From $1,062
Compare at $3,660
Save 98.2%IGI | 3.41ct | Cushion | F | SI1 | Excellent
From $1,220
Compare at $68,200
Save 66%IGI | 3.41ct | Cushion | H | VS1 | Very Good
From $1,515
Compare at $4,450
Save 72.8%IGI | 3.41ct | Cushion | D | VVS2 | Ideal
From $1,792
Compare at $6,590
Save 77.9%IGI | 3.41ct | Cushion | E | VVS1 | Ideal
From $2,289
Compare at $10,370
Save 74.5%IGI | 3.41ct | Cushion | F | VS1 | Ideal
From $1,066
Compare at $4,180
Save 58.1%IGI | 3.41ct | Cushion | D | VVS1 | Excellent
From $3,118
Compare at $7,440
Save 67.2%IGI | 3.41ct | Cushion | D | VVS1 | Excellent
From $3,118
Compare at $9,510
Save 66%IGI | 3.41ct | Cushion | D | VVS1 | Excellent
From $3,118
Compare at $9,170
Save 67.9%IGI | 3.41ct | Cushion | E | IF | Ideal
From $3,922
Compare at $12,210
Save 81.7%IGI | 3.41ct | Cushion | D | VVS2 | Ideal
From $1,139
Compare at $6,240
Save 70.4%IGI | 3.41ct | Cushion | D | VVS1 | Ideal
From $2,231
Compare at $7,530
Save 81.3%IGI | 3.41ct | Cushion | E | VVS2 | Very Good
From $1,294
Compare at $6,900
Save 78.5%IGI | 3.41ct | Cushion | D | VVS2 | Ideal
From $1,269
Compare at $5,890
Save 75.6%IGI | 3.41ct | Cushion | D | IF | Ideal
From $4,955
Compare at $20,300
Save 74.4%IGI | 3.41ct | Cushion | D | IF | Ideal
From $5,235
Compare at $20,450
Save 74.8%IGI | 3.41ct | Cushion | E | VS2 | Ideal
From $1,007
Compare at $3,990
Save 40.5%IGI | 3.41ct | Cushion | E | VVS2 | Very Good
From $1,380
Compare at $2,318
Save 67.6%IGI | 3.41ct | Cushion | D | VS1 | Ideal
From $1,081
Compare at $3,340
Save 55.7%IGI | 3.41ct | Cushion | D | VVS2 | Ideal
From $1,827
Compare at $4,125
Save 75.1%IGI | 3.41ct | Cushion | E | VVS2 | Very Good
From $1,746
Compare at $7,000
Save 66.9%IGI | 3.41ct | Cushion | E | VVS1 | Very Good
From $2,660
Compare at $8,030
Save 84.8%IGI | 3.41ct | Cushion | E | VVS2 | Excellent
From $1,230
Compare at $8,090
Save 77.6%IGI | 3.41ct | Cushion | E | VS1 | Very Good
From $1,019
Compare at $4,550
Save 40.5%IGI | 3.41ct | Cushion | E | VVS2 | Very Good
From $1,380
Compare at $2,318
Entry pricing in this category starts around $625.
What to Know When Shopping for 3.4 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $22,472 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 $3,480 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 217 comparable stones in this segment. Prices start around $625 and go up to $23,097.
Based on the latest market data, the average asking price is about $4,332 with a median around $3,480.
The observed spread is roughly $22,472 across tracked listings, which is about 97.3% 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 $3,480, 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 $22,472 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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