8 Carat Round Lab Grown Diamond Prices Comparison
As of October 2026, 8 carat round lab grown diamonds in the 8.00–8.99 carat benchmark range usually range from $1,042 to $79,059, with an average price of $4,820.In the last month, prices for these diamonds are down 8.7%.Compare 2,104 verified listings across 15 retailers tracked by CaratRadar.
8 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 2,104 verified 8-carat round lab grown diamonds in the 8.00–8.99 carat benchmark range, listed across 15 online retailers. Prices in this segment range from $1,042 to $79,059, with an average asking price of $4,820 and a median of $3,533.
The price spread of $78,017 (98.7% 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 use the same benchmark range throughout the page and 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.
2,104 diamonds tracked in the 8.00–8.99 carat benchmark
Price range: $1,042 to $79,059
Average price: $4,820
Median price: $3,533
Available across 15 retailers
Savings potential: up to 98.7%
Price Range Overview
As of Oct 15, 2026Real market range for this carat, shape, and diamond type.
2,104
$1,042
$4,820
$3,533
$79,059
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 68.7%IGI | 8.01ct | Round | F | SI1 | Excellent
From $1,042
Compare at $3,330
Save 71.3%IGI | 8.02ct | Round | F | VS2 | Excellent
From $1,164
Compare at $4,062
Save 71.2%IGI | 8.01ct | Round | F | VS1 | Ideal
From $1,198
Compare at $4,163
Save 71.5%IGI | 8.09ct | Round | F | VS1 | Excellent
From $1,198
Compare at $4,205
Save 70.9%IGI | 8.02ct | Round | F | VS1 | Ideal
From $1,203
Compare at $4,140
Save 70.9%IGI | 8.02ct | Round | F | VS1 | Excellent
From $1,203
Compare at $4,140
Save 70.9%IGI | 8.04ct | Round | F | VS1 | Ideal
From $1,210
Compare at $4,160
Save 70.9%IGI | 8.04ct | Round | F | VS1 | Ideal
From $1,210
Compare at $4,160
Save 71.4%IGI | 8.11ct | Round | F | VS1 | Excellent
From $1,210
Compare at $4,226
Save 71.2%IGI | 8.08ct | Round | F | VS1 | Excellent
From $1,210
Compare at $4,198
Save 71%IGI | 8.06ct | Round | F | VS1 | Excellent
From $1,210
Compare at $4,179
Save 71.2%IGI | 8.08ct | Round | F | VS1 | Excellent
From $1,210
Compare at $4,198
Save 70%IGI | 8.01ct | Round | F | VS1 | Excellent
From $1,244
Compare at $4,143
Save 70%IGI | 8.02ct | Round | F | VS1 | Excellent
From $1,246
Compare at $4,152
Save 70%IGI | 8.02ct | Round | F | VS1 | Excellent
From $1,246
Compare at $4,152
Save 70%IGI | 8.03ct | Round | F | VS1 | Excellent
From $1,247
Compare at $4,162
Save 70%IGI | 8.03ct | Round | F | VS1 | Excellent
From $1,247
Compare at $4,162
Save 79.4%IGI | 8ct | Round | F | VS1 | Very Good
From $1,255
Compare at $6,097
Save 69.5%IGI | 8.02ct | Round | F | VS1 | Ideal
From $1,268
Compare at $4,158
Save 69.5%IGI | 8.03ct | Round | F | VS1 | Excellent
From $1,270
Compare at $4,167
Save 69.5%IGI | 8.03ct | Round | F | VS1 | Excellent
From $1,270
Compare at $4,167
Save 69.5%IGI | 8.03ct | Round | F | VS1 | Ideal
From $1,270
Compare at $4,167
Save 69.5%IGI | 8.03ct | Round | F | VS1 | Excellent
From $1,270
Compare at $4,167
Save 69.5%IGI | 8.03ct | Round | F | VS1 | Ideal
From $1,270
Compare at $4,167
Save 69.5%IGI | 8.03ct | Round | F | VS1 | Excellent
From $1,270
Compare at $4,167
Save 69.6%IGI | 8.04ct | Round | F | VS1 | Excellent
From $1,271
Compare at $4,177
Save 69.6%IGI | 8.05ct | Round | F | VS1 | Ideal
From $1,273
Compare at $4,187
Save 69.6%IGI | 8.05ct | Round | F | VS1 | Excellent
From $1,273
Compare at $4,187
Save 68.9%IGI | 8.03ct | Round | F | VS2 | Ideal
From $1,273
Compare at $4,098
Save 69.6%IGI | 8.06ct | Round | F | VS1 | Excellent
From $1,274
Compare at $4,197
Save 72.9%IGI | 8.01ct | Round | F | VS1 | Ideal
From $1,278
Compare at $4,718
Save 69.1%IGI | 8ct | Round | F | VVS2 | Excellent
From $1,283
Compare at $4,157
Save 69.1%IGI | 8ct | Round | F | VVS2 | Excellent
From $1,283
Compare at $4,157
Save 69.2%IGI | 8.01ct | Round | F | VVS2 | Excellent
From $1,284
Compare at $4,167
Save 69.2%IGI | 8.01ct | Round | F | VVS2 | Excellent
From $1,284
Compare at $4,167
Save 69.2%IGI | 8.01ct | Round | F | VVS2 | Excellent
From $1,284
Compare at $4,167
Save 69.2%IGI | 8.01ct | Round | F | VVS2 | Excellent
From $1,284
Compare at $4,167
Save 69.2%IGI | 8.02ct | Round | F | VVS2 | Excellent
From $1,286
Compare at $4,176
Save 69.2%IGI | 8.02ct | Round | F | VVS2 | Ideal
From $1,286
Compare at $4,176
Save 69.3%IGI | 8.03ct | Round | F | VVS2 | Excellent
From $1,287
Compare at $4,187
Save 69.3%IGI | 8.03ct | Round | F | VVS2 | Ideal
From $1,287
Compare at $4,187
Save 73.9%IGI | 8.01ct | Round | F | VVS2 | Excellent
From $1,288
Compare at $4,940
Save 73.9%IGI | 8.01ct | Round | F | VVS2 | Excellent
From $1,288
Compare at $4,940
Save 73.9%IGI | 8.01ct | Round | F | VVS2 | Excellent
From $1,288
Compare at $4,940
Save 73.9%IGI | 8.01ct | Round | F | VVS2 | Excellent
From $1,288
Compare at $4,940
Save 73.9%IGI | 8.01ct | Round | F | VVS2 | Excellent
From $1,288
Compare at $4,940
Save 69.3%IGI | 8.04ct | Round | F | VVS2 | Excellent
From $1,289
Compare at $4,196
Save 69.3%IGI | 8.05ct | Round | F | VVS2 | Excellent
From $1,290
Compare at $4,207
Save 69.3%IGI | 8.05ct | Round | F | VVS2 | Ideal
From $1,290
Compare at $4,207
Save 69.3%IGI | 8.05ct | Round | F | VVS2 | Excellent
From $1,290
Compare at $4,207
Entry pricing in this benchmark range starts around $1,042.
What to Know When Shopping for 8 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $78,017 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 $3,533 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.
- Round brilliants command a premium due to higher rough waste during cutting. If budget matters, consider oval or cushion shapes for similar visual size.
Frequently Asked Questions
We currently track 2,104 comparable stones in the 8.00–8.99 carat benchmark range. Prices start around $1,042 and go up to $79,059.
Based on the latest market data, the average asking price is about $4,820 with a median around $3,533.
The observed spread is roughly $78,017 across tracked listings, which is about 98.7% from highest to lowest offer in the 8.00–8.99 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $4,820. The median price is $3,533, 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 15 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 $78,017 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.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
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8 Carat Cushion Lab Grown Diamond Prices
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Tracking Lab Grown inventory for the 8.00–8.99 carat Round diamond benchmark.