8.5 Carat Round Lab Grown Diamond Prices Comparison
As of April 2026, 8.5 carat round lab grown diamonds usually range from $1,845 to $52,743, with an average price of $9,267.In the last month, prices for these diamonds are down 1%.Compare 74 verified listings across 5 retailers tracked by CaratRadar.
8.5 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 74 verified 8.5-carat round lab grown diamonds listed across 5 online retailers. Prices in this segment range from $1,845 to $52,743, with an average asking price of $9,267 and a median of $6,784.
The price spread of $50,898 (96.5% 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.
74 diamonds tracked in this segment
Price range: $1,845 to $52,743
Average price: $9,267
Median price: $6,784
Available across 5 retailers
Savings potential: up to 96.5%
Price Range Overview
As of Apr 15, 2026Real market range for this carat, shape, and diamond type.
74
$1,845
$9,267
$6,784
$52,743
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 77.6%IGI | 8.5ct | Round | G | VS2 | Ideal
From $3,390
Compare at $15,130
Save 78.4%IGI | 8.5ct | Round | G | VS1 | Ideal
From $3,819
Compare at $17,720
Save 80.2%IGI | 8.5ct | Round | E | VS1 | Ideal
From $4,346
Compare at $21,960
Save 66.3%IGI | 8.5ct | Round | G | VS2 | Ideal
From $3,187
Compare at $9,451
Save 77.6%IGI | 8.5ct | Round | G | VS2 | Ideal
From $3,390
Compare at $15,130
Save 79.5%IGI | 8.5ct | Round | F | VS2 | Ideal
From $3,721
Compare at $18,160
Save 85.5%IGI | 8.5ct | Round | F | VVS2 | Ideal
From $3,281
Compare at $22,660
Save 81%IGI | 8.5ct | Round | F | VVS2 | Excellent
From $4,297
Compare at $22,610
Save 70.9%IGI | 8.5ct | Round | F | VVS2 | Ideal
From $4,535
Compare at $15,570
Save 68%IGI | 8.5ct | Round | D | VS2 | Ideal
From $4,856
Compare at $15,189
Save 73%IGI | 8.5ct | Round | E | VS2 | Excellent
From $3,637
Compare at $13,480
Save 58.1%IGI | 8.5ct | Round | F | VVS2 | Ideal
From $3,605
Compare at $8,607
Save 20.8%IGI | 8.5ct | Round | F | VS1 | Excellent
From $5,212
Compare at $6,582
Save 53.5%GIA | 8.51ct | Round | E | VS1 | Ideal
From $22,950
Compare at $49,370
Save 84.9%IGI | 8.51ct | Round | G | VVS2 | Ideal
From $2,994
Compare at $19,880
Save 46.4%IGI | 8.51ct | Round | H | VS2 | Ideal
From $3,304
Compare at $6,169
Save 71.8%IGI | 8.51ct | Round | F | SI1 | Ideal
From $3,589
Compare at $12,720
Save 67%IGI | 8.51ct | Round | G | VS2 | Ideal
From $4,992
Compare at $15,150
Save 78.5%IGI | 8.51ct | Round | F | VS2 | Excellent
From $3,879
Compare at $18,050
Save 65.6%IGI | 8.51ct | Round | E | VVS1 | Ideal
From $8,221
Compare at $23,870
Save 73.4%IGI | 8.51ct | Round | F | VS1 | Ideal
From $4,323
Compare at $16,270
Save 46.9%IGI | 8.51ct | Round | E | VVS2 | Ideal
From $4,185
Compare at $7,887
Save 49.7%IGI | 8.51ct | Round | F | VVS2 | Excellent
From $2,645
Compare at $5,258
Save 24.3%IGI | 8.51ct | Round | E | VS2 | Ideal
From $5,314
Compare at $7,021
Save 58.7%GIA | 8.52ct | Round | G | VS1 | Ideal
From $10,728
Compare at $25,986
Save 51.7%GIA | 8.52ct | Round | E | VVS2 | Ideal
From $10,100
Compare at $20,890
Save 77.6%IGI | 8.52ct | Round | G | VS2 | Ideal
From $3,398
Compare at $15,170
Save 77.5%IGI | 8.52ct | Round | G | VS2 | Ideal
From $3,098
Compare at $13,760
Save 66.3%IGI | 8.52ct | Round | E | SI1 | Ideal
From $3,291
Compare at $9,760
Save 62.9%IGI | 8.52ct | Round | E | VS2 | Excellent
From $2,495
Compare at $6,722
Save 80.8%IGI | 8.52ct | Round | E | VS1 | Ideal
From $4,229
Compare at $22,060
Save 84.6%IGI | 8.52ct | Round | E | VS1 | Ideal
From $3,424
Compare at $22,160
Save 83.4%IGI | 8.52ct | Round | F | VVS2 | Ideal
From $3,780
Compare at $22,710
Save 49.8%IGI | 8.52ct | Round | F | VVS2 | Excellent
From $2,645
Compare at $5,264
Save 70.9%IGI | 8.52ct | Round | F | VVS2 | Excellent
From $4,651
Compare at $15,970
Save 84.5%IGI | 8.52ct | Round | G | VS1 | Excellent
From $2,764
Compare at $17,800
Save 67.1%IGI | 8.53ct | Round | G | VS2 | Ideal
From $5,004
Compare at $15,190
Save 84.1%IGI | 8.53ct | Round | E | VVS2 | Ideal
From $4,020
Compare at $25,330
Save 80.4%IGI | 8.53ct | Round | E | IF | Ideal
From $22,594
Compare at $115,167
Save 80.4%IGI | 8.53ct | Round | F | VS1 | Excellent
From $3,946
Compare at $20,090
Save 70.4%IGI | 8.53ct | Round | D | VS1 | Excellent
From $7,989
Compare at $27,030
Save 86.8%IGI | 8.53ct | Round | F | VVS2 | Excellent
From $3,018
Compare at $22,820
Save 77.6%IGI | 8.54ct | Round | G | VS2 | Ideal
From $3,405
Compare at $15,200
Save 76.8%IGI | 8.54ct | Round | G | SI1 | Ideal
From $2,748
Compare at $11,830
Save 78.4%IGI | 8.54ct | Round | G | VS1 | Ideal
From $3,837
Compare at $17,800
Save 75.7%IGI | 8.54ct | Round | E | VS2 | Ideal
From $4,622
Compare at $19,050
Save 84.1%IGI | 8.54ct | Round | E | VVS2 | Ideal
From $4,025
Compare at $25,360
Save 48.3%IGI | 8.54ct | Round | G | VS2 | Excellent
From $3,133
Compare at $6,059
Save 84.4%IGI | 8.54ct | Round | E | VS1 | Ideal
From $3,471
Compare at $22,210
Save 39.9%IGI | 8.54ct | Round | F | VVS2 | Ideal
From $3,788
Compare at $6,305
Entry pricing in this category starts around $1,845.
What to Know When Shopping for 8.5 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $50,898 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 $6,784 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 74 comparable stones in this segment. Prices start around $1,845 and go up to $52,743.
Based on the latest market data, the average asking price is about $9,267 with a median around $6,784.
The observed spread is roughly $50,898 across tracked listings, which is about 96.5% 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 $6,784, 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 5 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 $50,898 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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