0.8 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 0.8 carat radiant lab grown diamonds usually range from $164 to $2,050, with an average price of $672.In the last month, prices for these diamonds are down 1%.Compare 768 verified listings across 7 retailers tracked by CaratRadar.
0.8 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 768 verified 0.8-carat radiant lab grown diamonds listed across 7 online retailers. Prices in this segment range from $164 to $2,050, with an average asking price of $672 and a median of $640.
The price spread of $1,886 (92.0% 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.
768 diamonds tracked in this segment
Price range: $164 to $2,050
Average price: $672
Median price: $640
Available across 7 retailers
Savings potential: up to 92.0%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
768
$164
$672
$640
$2,050
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 63.6%IGI | 0.81ct | Radiant | I | VS2 | Excellent
From $429
Compare at $1,180
Save 41.9%IGI | 0.81ct | Radiant | G | SI2 | Ideal
From $302
Compare at $520
Save 62.7%IGI | 0.81ct | Radiant | E | VS2 | Excellent
From $272
Compare at $730
Save 53.5%IGI | 0.81ct | Radiant | E | VS1 | Ideal
From $367
Compare at $790
Save 31.3%IGI | 0.81ct | Radiant | F | VVS2 | Ideal
From $419
Compare at $610
Save 42.6%IGI | 0.81ct | Radiant | G | VS1 | Ideal
From $419
Compare at $730
Save 33.7%IGI | 0.81ct | Radiant | F | VS1 | Ideal
From $418
Compare at $631
Save 63.6%IGI | 0.81ct | Radiant | H | VVS2 | Ideal
From $502
Compare at $1,380
Save 21.9%IGI | 0.81ct | Radiant | G | VS2 | Ideal
From $780
Compare at $999
Save 75.8%IGI | 0.81ct | Radiant | H | VVS2 | Ideal
From $343
Compare at $1,420
Save 61.7%IGI | 0.81ct | Radiant | G | VVS1 | Very Good
From $318
Compare at $830
Save 41.7%IGI | 0.81ct | Radiant | E | VS1 | Excellent
From $368
Compare at $631
Save 76.6%IGI | 0.81ct | Radiant | E | VS1 | Ideal
From $288
Compare at $1,230
Save 61.4%IGI | 0.81ct | Radiant | E | VS2 | Very Good
From $282
Compare at $730
Save 36%IGI | 0.81ct | Radiant | D | VS2 | Excellent
From $389
Compare at $608
Save 38%IGI | 0.81ct | Radiant | E | VS2 | Excellent
From $333
Compare at $537
Save 45.6%IGI | 0.81ct | Radiant | E | VVS2 | Excellent
From $626
Compare at $1,151
Save 74.7%IGI | 0.81ct | Radiant | G | VS1 | Very Good
From $308
Compare at $1,220
Save 74.7%IGI | 0.81ct | Radiant | G | VS1 | Very Good
From $308
Compare at $1,220
Save 74.6%IGI | 0.81ct | Radiant | G | VVS2 | Very Good
From $325
Compare at $1,280
Save 74.7%IGI | 0.81ct | Radiant | G | VS1 | Very Good
From $308
Compare at $1,220
Save 74.5%IGI | 0.81ct | Radiant | G | VS1 | Very Good
From $318
Compare at $1,250
Save 74.6%IGI | 0.81ct | Radiant | G | VVS2 | Very Good
From $325
Compare at $1,280
Save 63.6%IGI | 0.81ct | Radiant | H | VVS2 | Ideal
From $502
Compare at $1,380
Save 74.6%IGI | 0.81ct | Radiant | G | VVS2 | Very Good
From $325
Compare at $1,280
Save 78.7%IGI | 0.81ct | Radiant | G | VS2 | Very Good
From $285
Compare at $1,340
Save 79.8%IGI | 0.81ct | Radiant | D | VVS2 | Ideal
From $371
Compare at $1,840
Save 71.9%IGI | 0.81ct | Radiant | D | VVS2 | Excellent
From $376
Compare at $1,340
IGI | 0.81ct | Radiant | E | VVS2 | Ideal
From $376
Compare at $407
Save 45.6%IGI | 0.81ct | Radiant | E | VS1 | Excellent
From $357
Compare at $656
Save 80.2%IGI | 0.81ct | Radiant | E | VVS2 | Excellent
From $275
Compare at $1,390
IGI | 0.81ct | Radiant | D | VS1 | Ideal
From $415
Compare at $418
Save 77.7%IGI | 0.81ct | Radiant | G | VS1 | Ideal
From $344
Compare at $1,540
IGI | 0.81ct | Radiant | F | VS1 | Very Good
From $339
Compare at $367
Save 72%IGI | 0.81ct | Radiant | D | VVS1 | Excellent
From $425
Compare at $1,520
Save 33%IGI | 0.81ct | Radiant | FANCY | VS1 | Ideal
From $653
Compare at $974
Save 68.3%IGI | 0.81ct | Radiant | D | VS1 | Excellent
From $415
Compare at $1,310
Save 72%IGI | 0.81ct | Radiant | D | VVS1 | Excellent
From $425
Compare at $1,520
Save 76.5%IGI | 0.81ct | Radiant | F | VS1 | Good
From $291
Compare at $1,240
Save 26.4%IGI | 0.81ct | Radiant | E | VS1 | Excellent
From $405
Compare at $550
Save 69.4%IGI | 0.81ct | Radiant | E | VVS2 | Ideal
From $407
Compare at $1,330
Save 80.7%IGI | 0.81ct | Radiant | D | SI1 | Ideal
From $406
Compare at $2,106
Save 73.2%IGI | 0.81ct | Radiant | F | VS2 | Excellent
From $365
Compare at $1,360
Save 72.2%IGI | 0.81ct | Radiant | D | VVS2 | Ideal
From $372
Compare at $1,340
IGI | 0.81ct | Radiant | E | VVS2 | Very Good
From $393
Compare at $414
Save 71.3%IGI | 0.81ct | Radiant | D | VS1 | Excellent
From $376
Compare at $1,310
Save 69.4%IGI | 0.81ct | Radiant | E | VVS2 | Ideal
From $407
Compare at $1,330
Save 79.8%IGI | 0.81ct | Radiant | D | VVS2 | Excellent
From $371
Compare at $1,840
Save 68%IGI | 0.81ct | Radiant | E | VS2 | Excellent
From $391
Compare at $1,220
Save 70.8%IGI | 0.81ct | Radiant | E | VS1 | Excellent
From $368
Compare at $1,260
Entry pricing in this category starts around $164.
What to Know When Shopping for 0.8 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $1,886 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 $640 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.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 768 comparable stones in this segment. Prices start around $164 and go up to $2,050.
Based on the latest market data, the average asking price is about $672 with a median around $640.
The observed spread is roughly $1,886 across tracked listings, which is about 92.0% 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 $640, 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 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 $1,886 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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