0.8 Carat Cushion Lab Grown Diamond Prices Comparison
As of April 2026, 0.8 carat cushion lab grown diamonds usually range from $159 to $2,093, with an average price of $668.In the last month, prices for these diamonds are down 1.3%.Compare 859 verified listings across 8 retailers tracked by CaratRadar.
0.8 Carat Cushion Lab Grown Diamond Market Overview
CaratRadar currently tracks 859 verified 0.8-carat cushion lab grown diamonds listed across 8 online retailers. Prices in this segment range from $159 to $2,093, with an average asking price of $668 and a median of $630.
The price spread of $1,934 (92.4% 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.
859 diamonds tracked in this segment
Price range: $159 to $2,093
Average price: $668
Median price: $630
Available across 8 retailers
Savings potential: up to 92.4%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
859
$159
$668
$630
$2,093
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 74.6%GCAL | 0.81ct | Cushion | F | VS1 | Ideal
From $331
Compare at $1,300
Save 70.3%GCAL | 0.81ct | Cushion | D | VVS2 | Excellent
From $401
Compare at $1,350
Save 78.8%IGI | 0.81ct | Cushion | G | VS1 | Ideal
From $344
Compare at $1,620
Save 75.9%IGI | 0.81ct | Cushion | G | VVS2 | Ideal
From $355
Compare at $1,470
Save 38.9%IGI | 0.81ct | Cushion | E | VVS2 | Excellent
From $385
Compare at $630
Save 77.4%IGI | 0.81ct | Cushion | F | VS1 | Ideal
From $369
Compare at $1,630
Save 73.9%IGI | 0.81ct | Cushion | H | VS1 | Ideal
From $543
Compare at $2,080
Save 74.1%IGI | 0.81ct | Cushion | G | VVS2 | Excellent
From $451
Compare at $1,740
IGI | 0.81ct | Cushion | G | VS1 | Very Good
From $375
Compare at $510
Save 73.6%IGI | 0.81ct | Cushion | F | VVS2 | Ideal
From $401
Compare at $1,520
Save 74.4%IGI | 0.81ct | Cushion | G | VS2 | Very Good
From $338
Compare at $1,320
Save 74.4%IGI | 0.81ct | Cushion | G | VS2 | Very Good
From $338
Compare at $1,320
Save 74.4%IGI | 0.81ct | Cushion | G | VS2 | Very Good
From $338
Compare at $1,320
Save 74.9%IGI | 0.81ct | Cushion | F | SI1 | Very Good
From $302
Compare at $1,200
Save 74.4%IGI | 0.81ct | Cushion | G | VS2 | Very Good
From $338
Compare at $1,320
IGI | 0.81ct | Cushion | FANCY | VS2 | Excellent
From $533
Compare at $637
IGI | 0.81ct | Cushion | FANCY | VS1 | Ideal
From $526
Compare at $632
Save 71.8%IGI | 0.81ct | Cushion | E | VS2 | Excellent
From $392
Compare at $1,390
Save 57.3%IGI | 0.81ct | Cushion | D | VS1 | Very Good
From $371
Compare at $870
Save 55.9%IGI | 0.81ct | Cushion | F | VS1 | Good
From $330
Compare at $750
Save 54.3%IGI | 0.81ct | Cushion | E | VVS2 | Ideal
From $601
Compare at $1,316
IGI | 0.81ct | Cushion | D | VS1 | Ideal
From $415
Compare at $458
Save 74.7%IGI | 0.81ct | Cushion | D | VVS2 | Excellent
From $394
Compare at $1,560
Save 74%IGI | 0.81ct | Cushion | E | VVS1 | Excellent
From $423
Compare at $1,630
Save 69.4%IGI | 0.81ct | Cushion | D | VVS2 | Excellent
From $478
Compare at $1,560
Save 10.3%IGI | 0.81ct | Cushion | F | VS2 | Ideal
From $365
Compare at $407
Save 74.7%IGI | 0.81ct | Cushion | D | VVS2 | Excellent
From $394
Compare at $1,560
Save 74%IGI | 0.81ct | Cushion | D | VS1 | Excellent
From $390
Compare at $1,500
Save 70.6%IGI | 0.81ct | Cushion | E | VVS2 | Excellent
From $387
Compare at $1,316
Save 74%IGI | 0.81ct | Cushion | D | VS1 | Ideal
From $390
Compare at $1,500
IGI | 0.81ct | Cushion | D | VVS2 | Ideal
From $478
Compare at $493
Save 73.1%IGI | 0.81ct | Cushion | F | VS1 | Excellent
From $369
Compare at $1,370
IGI | 0.81ct | Cushion | D | VS2 | Ideal
From $427
Compare at $441
Save 78.6%IGI | 0.81ct | Cushion | D | VVS2 | Excellent
From $394
Compare at $1,840
Save 72.8%IGI | 0.81ct | Cushion | E | VS1 | Excellent
From $397
Compare at $1,460
Save 74.1%IGI | 0.81ct | Cushion | D | VS1 | Excellent
From $389
Compare at $1,500
Save 70.6%IGI | 0.81ct | Cushion | E | VVS2 | Excellent
From $387
Compare at $1,316
IGI | 0.81ct | Cushion | D | VVS2 | Ideal
From $478
Compare at $493
Save 11%IGI | 0.81ct | Cushion | E | VS1 | Ideal
From $397
Compare at $446
Save 20.1%IGI | 0.81ct | Cushion | D | VVS2 | Ideal
From $735
Compare at $920
Save 74.5%IGI | 0.81ct | Cushion | E | VVS2 | Excellent
From $388
Compare at $1,520
Save 12.1%IGI | 0.81ct | Cushion | D | VS1 | Ideal
From $703
Compare at $800
Save 74%IGI | 0.81ct | Cushion | D | VS1 | Excellent
From $390
Compare at $1,500
Save 46.3%IGI | 0.81ct | Cushion | D | VVS2 | Excellent
From $395
Compare at $735
Save 56.6%IGI | 0.81ct | Cushion | D | VVS2 | Excellent
From $399
Compare at $920
Save 74.7%IGI | 0.81ct | Cushion | D | VVS2 | Excellent
From $394
Compare at $1,560
Save 40.4%IGI | 0.81ct | Cushion | E | VS1 | Very Good
From $351
Compare at $590
Save 71.9%IGI | 0.81ct | Cushion | F | VVS2 | Excellent
From $405
Compare at $1,440
Save 52.3%IGI | 0.81ct | Cushion | E | VS1 | Excellent
From $391
Compare at $820
Save 54.7%IGI | 0.81ct | Cushion | D | VVS2 | Excellent
From $394
Compare at $870
Entry pricing in this category starts around $159.
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 $1,934 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 $630 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 859 comparable stones in this segment. Prices start around $159 and go up to $2,093.
Based on the latest market data, the average asking price is about $668 with a median around $630.
The observed spread is roughly $1,934 across tracked listings, which is about 92.4% 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 $630, 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 8 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 $1,934 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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