6.8 Carat Round Lab Grown Diamond Prices Comparison
As of February 2026, 6.8 carat round lab grown diamonds usually range from $1,459 to $18,754, with an average price of $3,354.In the last month, prices for these diamonds are down 2.9%.Compare 61 verified listings across 4 retailers tracked by CaratRadar.
6.8 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 61 verified 6.8-carat round lab grown diamonds listed across 4 online retailers. Prices in this segment range from $1,459 to $18,754, with an average asking price of $3,354 and a median of $1,897.
The price spread of $17,295 (92.2% 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.
61 diamonds tracked in this segment
Price range: $1,459 to $18,754
Average price: $3,354
Median price: $1,897
Available across 4 retailers
Savings potential: up to 92.2%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
61
$1,459
$3,354
$1,897
$18,754
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 88.2%6.75ct | Round | G | VS1 | Ideal
From $1,959
Compare at $16,610
IGISave 84.8%6.75ct | Round | E | VVS2 | Ideal
From $2,409
Compare at $15,890
IGISave 77.7%6.75ct | Round | F | IF | Ideal
From $10,966
Compare at $49,266
IGISave 90.1%6.75ct | Round | E | VVS2 | Excellent
From $1,657
Compare at $16,670
IGISave 91.5%6.76ct | Round | E | VVS2 | Excellent
From $1,709
Compare at $20,130
IGISave 86.2%6.76ct | Round | F | VS2 | Ideal
From $2,357
Compare at $17,060
IGISave 91%6.76ct | Round | F | VVS2 | Excellent
From $1,627
Compare at $18,060
IGISave 73%6.76ct | Round | F | VS2 | Ideal
From $3,317
Compare at $12,300
IGISave 88.6%6.76ct | Round | G | VS2 | Ideal
From $1,611
Compare at $14,170
IGI6.76ct | Round | F | VS1 | Ideal
From $10,146
Compare at $11,208
IGISave 84.5%6.76ct | Round | G | IF | Ideal
From $14,152
Compare at $91,269
IGISave 63%6.77ct | Round | E | VVS2 | Ideal
From $1,610
Compare at $4,356
IGISave 85.1%6.77ct | Round | E | VVS2 | Ideal
From $1,593
Compare at $10,660
IGISave 89.8%6.77ct | Round | F | VVS2 | Ideal
From $1,856
Compare at $18,110
IGISave 63.1%6.77ct | Round | F | VVS2 | Excellent
From $1,624
Compare at $4,397
IGISave 84%6.77ct | Round | E | VVS2 | Ideal
From $2,307
Compare at $14,390
IGISave 14%6.77ct | Round | E | VVS2 | Ideal
From $1,627
Compare at $1,891
IGISave 83.2%6.77ct | Round | G | VS1 | Ideal
From $2,159
Compare at $12,890
IGISave 80.6%6.77ct | Round | G | VS2 | Ideal
From $1,566
Compare at $8,090
IGISave 54.9%6.78ct | Round | E | VVS2 | Excellent
From $1,930
Compare at $4,279
IGISave 91.7%6.78ct | Round | E | VVS2 | Ideal
From $1,667
Compare at $20,190
IGISave 77.5%6.78ct | Round | G | VS1 | Ideal
From $1,897
Compare at $8,450
IGISave 47.5%6.78ct | Round | D | VVS1 | Ideal
From $15,510
Compare at $29,530
IGISave 84.9%6.79ct | Round | G | VS1 | Ideal
From $1,697
Compare at $11,200
IGISave 15.8%6.79ct | Round | E | VVS2 | Ideal
From $1,628
Compare at $1,934
IGISave 86.8%6.79ct | Round | F | VS1 | Ideal
From $2,120
Compare at $16,090
IGISave 86%6.79ct | Round | E | VVS2 | Ideal
From $1,686
Compare at $12,070
IGISave 87.4%6.79ct | Round | E | VVS2 | Ideal
From $1,716
Compare at $13,640
IGISave 91.2%6.79ct | Round | F | VVS2 | Ideal
From $1,855
Compare at $21,110
IGISave 84.4%6.79ct | Round | E | VVS2 | Ideal
From $2,244
Compare at $14,430
IGISave 14.2%6.8ct | Round | E | VS1 | Ideal
From $2,031
Compare at $2,367
IGISave 80.9%6.8ct | Round | E | VVS2 | Ideal
From $1,675
Compare at $8,750
IGISave 76.3%6.8ct | Round | F | IF | Ideal
From $8,578
Compare at $36,270
IGISave 45.8%6.8ct | Round | H | VS2 | Ideal
From $2,212
Compare at $4,082
IGISave 88.2%6.8ct | Round | G | VS1 | Ideal
From $1,974
Compare at $16,730
IGISave 85.2%6.8ct | Round | F | SI1 | Ideal
From $1,835
Compare at $12,360
IGISave 76%6.8ct | Round | G | VVS2 | Ideal
From $3,808
Compare at $15,880
IGISave 64.7%6.8ct | Round | F | VS1 | Excellent
From $1,821
Compare at $5,165
IGISave 84.8%6.8ct | Round | G | VS1 | Ideal
From $2,168
Compare at $14,270
IGISave 78.9%6.8ct | Round | E | VVS2 | Ideal
From $4,261
Compare at $20,150
IGISave 78.5%6.8ct | Round | E | IF | Ideal
From $16,333
Compare at $76,070
IGISave 89.5%6.81ct | Round | F | VVS2 | Ideal
From $1,905
Compare at $18,190
IGISave 86.8%6.81ct | Round | G | VS2 | Ideal
From $1,883
Compare at $14,280
IGISave 30%6.81ct | Round | E | VS1 | Ideal
From $4,099
Compare at $5,855
IGISave 90%6.81ct | Round | E | VVS2 | Ideal
From $2,018
Compare at $20,230
IGISave 86.8%6.81ct | Round | G | VS2 | Ideal
From $1,883
Compare at $14,280
IGISave 56.2%6.81ct | Round | G | VS1 | Ideal
From $1,883
Compare at $4,297
IGISave 62.3%6.82ct | Round | H | VS1 | Ideal
From $1,623
Compare at $4,303
IGISave 86.8%6.82ct | Round | G | VS2 | Ideal
From $1,886
Compare at $14,300
IGISave 11.3%6.82ct | Round | E | VVS2 | Excellent
From $1,634
Compare at $1,842
Entry pricing in this category starts around $1,459.
What to Know When Shopping for 6.8 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $17,295 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 $1,897 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 61 comparable stones in this segment. Prices start around $1,459 and go up to $18,754.
Based on the latest market data, the average asking price is about $3,354 with a median around $1,897.
The observed spread is roughly $17,295 across tracked listings, which is about 92.2% 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 $1,897, 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 4 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 $17,295 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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