8.1 Carat Round Lab Grown Diamond Prices Comparison
As of April 2026, 8.1 carat round lab grown diamonds usually range from $1,690 to $36,959, with an average price of $7,664.In the last month, prices for these diamonds are down 1.6%.Compare 82 verified listings across 5 retailers tracked by CaratRadar.
8.1 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 82 verified 8.1-carat round lab grown diamonds listed across 5 online retailers. Prices in this segment range from $1,690 to $36,959, with an average asking price of $7,664 and a median of $5,490.
The price spread of $35,269 (95.4% 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.
82 diamonds tracked in this segment
Price range: $1,690 to $36,959
Average price: $7,664
Median price: $5,490
Available across 5 retailers
Savings potential: up to 95.4%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
82
$1,690
$7,664
$5,490
$36,959
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 88%IGI | 8.1ct | Round | G | VS1 | Excellent
From $1,910
Compare at $15,980
Save 50.2%IGI | 8.1ct | Round | G | VS2 | Excellent
From $3,231
Compare at $6,495
Save 76%IGI | 8.1ct | Round | E | VS1 | Ideal
From $4,850
Compare at $20,170
Save 73.4%IGI | 8.1ct | Round | E | VVS2 | Ideal
From $4,401
Compare at $16,560
Save 13.5%IGI | 8.1ct | Round | F | VVS2 | Ideal
From $3,471
Compare at $4,012
Save 73.4%IGI | 8.1ct | Round | F | VS1 | Excellent
From $4,096
Compare at $15,410
Save 87.2%IGI | 8.1ct | Round | F | VVS2 | Ideal
From $2,777
Compare at $21,690
Save 87.2%IGI | 8.1ct | Round | F | VVS2 | Ideal
From $2,777
Compare at $21,690
Save 87.2%IGI | 8.1ct | Round | F | VVS2 | Ideal
From $2,777
Compare at $21,690
Save 19.3%IGI | 8.1ct | Round | G | VVS2 | Excellent
From $3,016
Compare at $3,738
Save 86.5%IGI | 8.1ct | Round | F | VS1 | Excellent
From $2,600
Compare at $19,220
Save 68.8%GIA | 8.11ct | Round | E | VS1 | Excellent
From $14,538
Compare at $46,610
Save 53.1%IGI | 8.11ct | Round | F | SI1 | Ideal
From $3,904
Compare at $8,330
Save 77.6%IGI | 8.11ct | Round | G | VS2 | Ideal
From $3,235
Compare at $14,450
Save 79.3%IGI | 8.11ct | Round | F | VS1 | Ideal
From $3,954
Compare at $19,120
Save 75%IGI | 8.11ct | Round | F | VS1 | Ideal
From $4,842
Compare at $19,400
Save 76.2%IGI | 8.11ct | Round | F | VS2 | Ideal
From $4,153
Compare at $17,440
Save 76%IGI | 8.11ct | Round | E | VS1 | Ideal
From $5,035
Compare at $21,000
Save 76%IGI | 8.11ct | Round | E | VS1 | Ideal
From $5,035
Compare at $21,000
Save 79.6%IGI | 8.11ct | Round | E | VVS2 | Excellent
From $4,916
Compare at $24,040
Save 82.6%IGI | 8.11ct | Round | E | VVS2 | Ideal
From $4,189
Compare at $24,090
Save 80.4%IGI | 8.11ct | Round | E | VS1 | Excellent
From $4,101
Compare at $20,950
Save 68%IGI | 8.11ct | Round | E | VVS2 | Ideal
From $3,092
Compare at $9,661
Save 79%IGI | 8.12ct | Round | F | VS2 | Ideal
From $3,649
Compare at $17,350
Save 79.3%IGI | 8.12ct | Round | E | VS2 | Ideal
From $3,887
Compare at $18,770
Save 76%IGI | 8.12ct | Round | E | VS1 | Ideal
From $5,041
Compare at $21,030
Save 76%IGI | 8.12ct | Round | E | VS1 | Ideal
From $5,041
Compare at $21,030
Save 14.4%IGI | 8.12ct | Round | F | VS1 | Excellent
From $3,170
Compare at $3,703
Save 74.5%IGI | 8.12ct | Round | E | VS2 | Ideal
From $4,847
Compare at $19,040
Save 76%IGI | 8.12ct | Round | E | VS1 | Ideal
From $5,041
Compare at $21,030
Save 76%IGI | 8.12ct | Round | E | VS1 | Ideal
From $5,041
Compare at $21,030
Save 80.4%IGI | 8.12ct | Round | E | VS1 | Excellent
From $4,106
Compare at $20,980
Save 66.8%IGI | 8.12ct | Round | F | VVS2 | Ideal
From $2,675
Compare at $8,061
Save 83.3%IGI | 8.12ct | Round | E | VS2 | Ideal
From $3,153
Compare at $18,910
Save 33.7%IGI | 8.12ct | Round | E | VS2 | Ideal
From $5,299
Compare at $7,997
Save 45%IGI | 8.13ct | Round | H | VS2 | Ideal
From $3,242
Compare at $5,897
Save 77.6%IGI | 8.13ct | Round | G | VS2 | Ideal
From $3,243
Compare at $14,480
Save 76.2%IGI | 8.13ct | Round | F | VS2 | Ideal
From $4,163
Compare at $17,480
Save 77.6%IGI | 8.13ct | Round | G | VS2 | Ideal
From $3,243
Compare at $14,480
Save 76%IGI | 8.13ct | Round | E | VS1 | Ideal
From $5,048
Compare at $21,060
Save 75%IGI | 8.13ct | Round | F | VS1 | Ideal
From $4,853
Compare at $19,450
Save 75%IGI | 8.13ct | Round | F | VS1 | Ideal
From $4,853
Compare at $19,450
Save 80.4%IGI | 8.13ct | Round | F | VS1 | Excellent
From $3,762
Compare at $19,150
Save 81%IGI | 8.13ct | Round | F | VVS2 | Excellent
From $4,111
Compare at $21,620
Save 66.8%IGI | 8.13ct | Round | F | VVS2 | Ideal
From $2,678
Compare at $8,071
Save 78.4%IGI | 8.14ct | Round | G | VS1 | Ideal
From $3,663
Compare at $16,980
Save 71.8%IGI | 8.14ct | Round | F | SI1 | Ideal
From $3,434
Compare at $12,170
Save 75%IGI | 8.14ct | Round | F | VS1 | Excellent
From $4,859
Compare at $19,470
Save 76%IGI | 8.14ct | Round | E | VS1 | Ideal
From $5,054
Compare at $21,080
Save 75%IGI | 8.14ct | Round | F | VS1 | Ideal
From $4,859
Compare at $19,470
Entry pricing in this category starts around $1,690.
What to Know When Shopping for 8.1 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $35,269 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 $5,490 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 82 comparable stones in this segment. Prices start around $1,690 and go up to $36,959.
Based on the latest market data, the average asking price is about $7,664 with a median around $5,490.
The observed spread is roughly $35,269 across tracked listings, which is about 95.4% 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 $5,490, 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 $35,269 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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