5.4 Carat Cushion Lab Grown Diamond Prices Comparison
As of May 2026, 5.4 carat cushion lab grown diamonds usually range from $909 to $46,327, with an average price of $5,826.In the last month, prices for these diamonds are down 4.2%.Compare 35 verified listings across 5 retailers tracked by CaratRadar.
5.4 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 35 verified 5.4-carat cushion lab grown diamonds listed across 5 online retailers. Prices in this segment range from $909 to $46,327, with an average asking price of $5,826 and a median of $4,004.
The price spread of $45,419 (98.0% 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.
35 diamonds tracked in this segment
Price range: $909 to $46,327
Average price: $5,826
Median price: $4,004
Available across 5 retailers
Savings potential: up to 98.0%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
35
$909
$5,826
$4,004
$46,327
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGI | 5.44ct | Cushion | H | VS1 | Ideal
From $915
Compare at $2,401
Save 61.1%IGI | 5.47ct | Cushion | E | VS1 | Ideal
From $1,202
Compare at $3,089
Save 61.4%IGI | 5.49ct | Cushion | E | VVS2 | Very Good
From $1,217
Compare at $3,155
Save 60.3%IGI | 5.42ct | Cushion | E | VVS2 | Good
From $1,225
Compare at $3,085
Save 57.1%IGI | 5.47ct | Cushion | E | VS1 | Very Good
From $1,308
Compare at $3,052
Save 58.3%IGI | 5.49ct | Cushion | E | VVS2 | Very Good
From $1,328
Compare at $3,181
Save 55.3%IGI | 5.41ct | Cushion | E | VS1 | Ideal
From $1,342
Compare at $3,003
Save 60.7%IGI | 5.46ct | Cushion | D | VS1 | Very Good
From $1,383
Compare at $3,518
IGI | 5.44ct | Cushion | F | VS1 | Very Good
From $1,408
Compare at $1,429
IGI | 5.43ct | Cushion | F | VVS2 | Very Good
From $1,430
Compare at $1,452
Save 72.9%IGI | 5.44ct | Cushion | FANCY | VS2 | Very Good
From $1,504
Compare at $5,543
Save 48%IGI | 5.42ct | Cushion | E | VS1 | Very Good
From $1,617
Compare at $3,111
Save 43.7%IGI | 5.45ct | Cushion | G | VVS2 | Very Good
From $1,633
Compare at $2,898
Save 78%IGI | 5.46ct | Cushion | G | VS1 | Very Good
From $2,204
Compare at $10,000
Save 64.4%IGI | 5.42ct | Cushion | F | VVS2 | Excellent
From $2,249
Compare at $6,315
Save 78.9%IGI | 5.44ct | Cushion | F | VS1 | Very Good
From $2,251
Compare at $10,690
Save 37%IGI | 5.45ct | Cushion | F | VVS2 | Very Good
From $2,260
Compare at $3,589
Save 78%GCAL | 5.42ct | Cushion | E | VS2 | Ideal
From $2,350
Compare at $10,670
Save 77.8%IGI | 5.42ct | Cushion | F | VVS2 | Very Good
From $2,376
Compare at $10,710
Save 57.8%GIA | 5.49ct | Cushion | E | VVS2 | Ideal
From $2,387
Compare at $5,662
Save 75.8%IGI | 5.41ct | Cushion | G | VVS2 | Ideal
From $2,587
Compare at $10,690
Save 40.1%IGI | 5.47ct | Cushion | E | VS1 | Ideal
From $2,673
Compare at $4,461
Save 72.5%GIA | 5.44ct | Cushion | G | VS1 | Ideal
From $2,764
Compare at $10,060
Save 41%GIA | 5.42ct | Cushion | E | VVS2 | Excellent
From $3,314
Compare at $5,613
Save 42.8%IGI | 5.41ct | Cushion | D | VVS2 | Very Good
From $3,987
Compare at $6,974
Save 43.4%GIA | 5.45ct | Cushion | F | VS2 | Excellent
From $4,184
Compare at $7,391
Save 76.3%IGI | 5.41ct | Cushion | G | VVS1 | Very Good
From $4,268
Compare at $17,990
Save 68.8%IGI | 5.48ct | Cushion | E | IF | Very Good
From $5,763
Compare at $18,492
Save 65.1%IGI | 5.41ct | Cushion | D | VVS1 | Ideal
From $6,230
Compare at $17,850
Save 78.7%IGI | 5.45ct | Cushion | D | IF | Good
From $9,846
Compare at $46,330
Save 49.1%IGI | 5.41ct | Cushion | D | FL | Very Good
From $12,907
Compare at $25,377
Save 41.2%IGI | 5.41ct | Cushion | D | IF | Ideal
From $14,339
Compare at $24,394
Save 59.7%IGI | 5.47ct | Cushion | D | FL | Ideal
From $15,496
Compare at $38,490
Save 78.8%GIA | 5.42ct | Cushion | D | IF | Excellent
From $18,557
Compare at $87,330
Save 72.7%IGI | 5.49ct | Cushion | D | FL | Excellent
From $24,164
Compare at $88,410
Entry pricing in this category starts around $909.
What to Know When Shopping for 5.4 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $45,419 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 $4,004 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 35 comparable stones in this segment. Prices start around $909 and go up to $46,327.
Based on the latest market data, the average asking price is about $5,826 with a median around $4,004.
The observed spread is roughly $45,419 across tracked listings, which is about 98.0% 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 $5,826. The median price is $4,004, 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 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 $45,419 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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