0.8 Carat Cushion Lab Grown Diamond Prices Comparison
As of May 2026, 0.8 carat cushion lab grown diamonds usually range from $139 to $2,201, with an average price of $614.In the last month, prices for these diamonds are down 5.8%.Compare 701 verified listings across 7 retailers tracked by CaratRadar.
0.8 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 701 verified 0.8-carat cushion lab grown diamonds listed across 7 online retailers. Prices in this segment range from $139 to $2,201, with an average asking price of $614 and a median of $542.
The price spread of $2,062 (93.7% 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.
701 diamonds tracked in this segment
Price range: $139 to $2,201
Average price: $614
Median price: $542
Available across 7 retailers
Savings potential: up to 93.7%
Price Range Overview
As of May 30, 2026Real market range for this carat, shape, and diamond type.
701
$139
$614
$542
$2,201
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 78.1%IGI | 0.81ct | Cushion | G | VS1 | Very Good
From $153
Compare at $700
Save 75.6%IGI | 0.9ct | Cushion | F | VS1 | Very Good
From $154
Compare at $630
Save 77.3%IGI | 0.82ct | Cushion | G | VS1 | Ideal
From $159
Compare at $700
Save 64.8%IGI | 0.86ct | Cushion | G | VS2 | Very Good
From $162
Compare at $460
Save 60.4%IGI | 0.9ct | Cushion | D | VS1 | Very Good
From $165
Compare at $417
Save 73.8%IGI | 0.9ct | Cushion | E | VS2 | Very Good
From $170
Compare at $650
Save 77.7%IGI | 0.9ct | Cushion | D | VS2 | Very Good
From $174
Compare at $780
Save 76.5%IGI | 0.83ct | Cushion | E | VS2 | Very Good
From $174
Compare at $740
Save 76.1%IGI | 0.81ct | Cushion | F | VS1 | Good
From $179
Compare at $750
Save 49.6%IGI | 0.83ct | Cushion | F | VS1 | Good
From $182
Compare at $361
Save 72.8%IGI | 0.86ct | Cushion | E | SI1 | Ideal
From $185
Compare at $680
Save 53.3%IGI | 0.83ct | Cushion | E | VS2 | Good
From $188
Compare at $403
Save 54.2%IGI | 0.9ct | Cushion | E | VS1 | Ideal
From $189
Compare at $413
Save 51.2%IGI | 0.86ct | Cushion | F | VS1 | Ideal
From $190
Compare at $389
Save 70.3%IGI | 0.81ct | Cushion | E | VS1 | Very Good
From $190
Compare at $640
Save 75.6%IGI | 0.83ct | Cushion | E | VS1 | Good
From $195
Compare at $800
Save 78.1%IGI | 0.88ct | Cushion | D | VS2 | Very Good
From $195
Compare at $890
Save 75%IGI | 0.81ct | Cushion | E | VS1 | Very Good
From $195
Compare at $780
Save 37.7%IGI | 0.9ct | Cushion | F | SI1 | Very Good
From $197
Compare at $316
Save 53.6%IGI | 0.9ct | Cushion | D | VS1 | Very Good
From $197
Compare at $425
Save 52.6%IGI | 0.82ct | Cushion | D | VVS2 | Ideal
From $199
Compare at $420
Save 75.1%IGI | 0.87ct | Cushion | F | VS1 | Very Good
From $199
Compare at $800
Save 77%IGI | 0.83ct | Cushion | D | VS1 | Ideal
From $200
Compare at $870
Save 77.3%IGI | 0.88ct | Cushion | D | VS2 | Ideal
From $200
Compare at $880
Save 71.4%IGI | 0.85ct | Cushion | E | VS1 | Very Good
From $200
Compare at $700
Save 68.1%IGI | 0.81ct | Cushion | D | VS1 | Very Good
From $201
Compare at $630
Save 72.1%IGI | 0.84ct | Cushion | G | VS1 | Excellent
From $201
Compare at $720
Save 76.6%IGI | 0.81ct | Cushion | D | VS1 | Very Good
From $201
Compare at $860
Save 75.8%IGI | 0.82ct | Cushion | D | VS2 | Excellent
From $201
Compare at $830
Save 71.9%IGI | 0.86ct | Cushion | E | VS1 | Very Good
From $202
Compare at $720
Save 74.6%IGI | 0.83ct | Cushion | E | VS1 | Very Good
From $203
Compare at $800
Save 62.9%IGI | 0.86ct | Cushion | E | VS2 | Ideal
From $204
Compare at $550
Save 78.5%IGI | 0.9ct | Cushion | E | VS1 | Very Good
From $204
Compare at $950
Save 52.4%IGI | 0.82ct | Cushion | E | VVS2 | Ideal
From $205
Compare at $431
Save 68.5%IGI | 0.83ct | Cushion | D | VS1 | Very Good
From $206
Compare at $654
Save 68.5%IGI | 0.83ct | Cushion | D | VS1 | Good
From $206
Compare at $654
Save 73.8%IGI | 0.86ct | Cushion | F | VS1 | Very Good
From $207
Compare at $790
Save 76.6%IGI | 0.84ct | Cushion | D | VS1 | Very Good
From $208
Compare at $890
Save 75.8%IGI | 0.89ct | Cushion | E | VS1 | Very Good
From $208
Compare at $860
Save 74.3%IGI | 0.81ct | Cushion | E | VVS2 | Very Good
From $208
Compare at $810
Save 74.7%IGI | 0.84ct | Cushion | E | VVS2 | Very Good
From $210
Compare at $830
Save 66.5%IGI | 0.82ct | Cushion | D | VS1 | Excellent
From $212
Compare at $633
Save 75.6%IGI | 0.82ct | Cushion | D | VS1 | Very Good
From $212
Compare at $870
Save 76.5%IGI | 0.86ct | Cushion | D | VS1 | Good
From $214
Compare at $910
Save 75.3%IGI | 0.81ct | Cushion | D | VS1 | Ideal
From $215
Compare at $870
Save 72.4%IGI | 0.81ct | Cushion | D | VS1 | Very Good
From $215
Compare at $780
Save 55.4%IGI | 0.9ct | Cushion | G | VS1 | Ideal
From $216
Compare at $484
Save 55.4%IGI | 0.9ct | Cushion | D | VS2 | Excellent
From $216
Compare at $484
Save 55.4%IGI | 0.9ct | Cushion | F | VS1 | Very Good
From $216
Compare at $484
Save 55.4%IGI | 0.9ct | Cushion | E | VS2 | Excellent
From $216
Compare at $484
Entry pricing in this category starts around $139.
What to Know When Shopping for 0.8 Carat Cushion Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $2,062 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 $542 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 701 comparable stones in this segment. Prices start around $139 and go up to $2,201.
Based on the latest market data, the average asking price is about $614 with a median around $542.
The observed spread is roughly $2,062 across tracked listings, which is about 93.7% 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 $614. The median price is $542, 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 7 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 $2,062 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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