1 Carat Cushion Lab Grown Diamond Prices Comparison
As of July 2026, 1 carat cushion lab grown diamonds usually range from $135 to $3,488, with an average price of $691.In the last month, prices for these diamonds are down 0.7%.Compare 6,686 verified listings across 12 retailers tracked by CaratRadar.
1 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 6,686 verified 1-carat cushion lab grown diamonds listed across 12 online retailers. Prices in this segment range from $135 to $3,488, with an average asking price of $691 and a median of $545.
The price spread of $3,353 (96.1% 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.
6,686 diamonds tracked in this segment
Price range: $135 to $3,488
Average price: $691
Median price: $545
Available across 12 retailers
Savings potential: up to 96.1%
Price Range Overview
As of Jul 12, 2026Real market range for this carat, shape, and diamond type.
6,686
$135
$691
$545
$3,488
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 69.3%IGI | 1.06ct | Cushion | E | SI1 | Ideal
From $141
Compare at $460
Save 75.9%IGI | 1.01ct | Cushion | E | SI1 | Ideal
From $147
Compare at $610
Save 75.6%IGI | 1.01ct | Cushion | F | SI1 | Ideal
From $154
Compare at $630
Save 78.1%IGI | 1ct | Cushion | E | SI1 | Ideal
From $162
Compare at $740
Save 78.9%IGI | 1.07ct | Cushion | F | SI1 | Ideal
From $163
Compare at $771
Save 79.1%IGI | 1.01ct | Cushion | E | SI1 | Ideal
From $163
Compare at $780
Save 79.1%IGI | 1.01ct | Cushion | E | SI1 | Ideal
From $163
Compare at $780
Save 78.3%IGI | 1.01ct | Cushion | E | SI1 | Ideal
From $163
Compare at $750
Save 76.4%IGI | 1.08ct | Cushion | F | SI1 | Ideal
From $165
Compare at $700
Save 73.5%IGI | 1.04ct | Cushion | E | SI1 | Ideal
From $165
Compare at $623
Save 77.6%IGI | 1.09ct | Cushion | F | SI1 | Ideal
From $166
Compare at $740
Save 75.3%IGI | 1.04ct | Cushion | G | VS2 | Ideal
From $168
Compare at $680
Save 74.5%IGI | 1.03ct | Cushion | G | VS1 | Very Good
From $168
Compare at $660
Save 45.9%GCAL | 1.03ct | Cushion | H | VS1 | Ideal
From $171
Compare at $316
Save 74%IGI | 1ct | Cushion | D | SI1 | Very Good
From $174
Compare at $670
Save 54.7%IGI | 1.02ct | Cushion | E | SI1 | Very Good
From $174
Compare at $384
Save 66.8%IGI | 1.02ct | Cushion | G | VVS2 | Ideal
From $176
Compare at $530
Save 78.7%IGI | 1.01ct | Cushion | F | SI2 | Ideal
From $179
Compare at $840
Save 73.8%IGI | 1.03ct | Cushion | E | VS2 | Ideal
From $181
Compare at $690
Save 74%IGI | 1.08ct | Cushion | G | VS1 | Ideal
From $182
Compare at $700
Save 76.4%IGI | 1.08ct | Cushion | G | VS1 | Ideal
From $182
Compare at $770
Save 74%IGI | 1.08ct | Cushion | G | VS1 | Ideal
From $182
Compare at $700
Save 78.8%IGI | 1.06ct | Cushion | H | VS1 | Ideal
From $183
Compare at $865
Save 74.6%IGI | 1.01ct | Cushion | D | SI1 | Ideal
From $183
Compare at $720
Save 76.6%IGI | 1.02ct | Cushion | G | VS1 | Ideal
From $186
Compare at $796
Save 79.8%IGI | 1.01ct | Cushion | D | SI1 | Ideal
From $187
Compare at $927
Save 42.1%IGI | 1ct | Cushion | E | VS2 | Ideal
From $187
Compare at $323
Save 71.7%IGI | 1ct | Cushion | F | VS2 | Very Good
From $187
Compare at $660
Save 73.5%IGI | 1.06ct | Cushion | G | VVS2 | Ideal
From $188
Compare at $710
Save 76.2%IGI | 1.06ct | Cushion | G | VVS2 | Ideal
From $188
Compare at $790
Save 70.6%IGI | 1.02ct | Cushion | G | SI1 | Ideal
From $188
Compare at $639
Save 47.9%IGI | 1.04ct | Cushion | H | VVS2 | Ideal
From $189
Compare at $363
Save 78.7%IGI | 1.04ct | Cushion | E | VS2 | Excellent
From $190
Compare at $890
Save 71.5%IGI | 1.02ct | Cushion | F | VS2 | Ideal
From $191
Compare at $670
Save 79.8%IGI | 1ct | Cushion | F | VS1 | Very Good
From $192
Compare at $950
Save 79.7%IGI | 1.04ct | Cushion | D | SI1 | Ideal
From $193
Compare at $953
Save 79.7%IGI | 1.04ct | Cushion | D | SI1 | Ideal
From $193
Compare at $953
Save 42.9%IGI | 1ct | Cushion | D | VS2 | Ideal
From $193
Compare at $338
Save 77.6%IGI | 1ct | Cushion | F | VS2 | Very Good
From $193
Compare at $861
Save 63.2%IGI | 1.01ct | Cushion | D | VS1 | Ideal
From $193
Compare at $524
Save 78.7%IGI | 1.02ct | Cushion | I | VS1 | Good
From $193
Compare at $904
Save 55.3%IGI | 1.02ct | Cushion | D | VS2 | Excellent
From $193
Compare at $432
Save 78.2%IGI | 1.01ct | Cushion | F | SI1 | Excellent
From $193
Compare at $884
Save 68.7%IGI | 1.02ct | Cushion | D | VS2 | Good
From $193
Compare at $617
Save 47.1%IGI | 1.03ct | Cushion | F | VVS2 | Ideal
From $194
Compare at $367
Save 68.7%IGI | 1ct | Cushion | E | VS1 | Good
From $194
Compare at $620
Save 80%IGI | 1ct | Cushion | E | SI1 | Excellent
From $194
Compare at $970
Save 60.4%IGI | 1.1ct | Cushion | E | VS1 | Very Good
From $195
Compare at $493
Save 39.1%IGI | 1.03ct | Cushion | G | VS1 | Ideal
From $195
Compare at $320
Save 76.5%IGI | 1.02ct | Cushion | E | VS2 | Excellent
From $195
Compare at $830
Entry pricing in this category starts around $135.
What to Know When Shopping for 1 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $3,353 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 $545 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 6,686 comparable stones in this segment. Prices start around $135 and go up to $3,488.
Based on the latest market data, the average asking price is about $691 with a median around $545.
The observed spread is roughly $3,353 across tracked listings, which is about 96.1% 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 $691. The median price is $545, 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 12 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 $3,353 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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