6.7 Carat Radiant Lab Grown Diamond Prices Comparison
As of February 2026, 6.7 carat radiant lab grown diamonds usually range from $1,294 to $13,576, with an average price of $2,682.In the last month, prices for these diamonds are down 2.5%.Compare 34 verified listings across 4 retailers tracked by CaratRadar.
6.7 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 34 verified 6.7-carat radiant lab grown diamonds listed across 4 online retailers. Prices in this segment range from $1,294 to $13,576, with an average asking price of $2,682 and a median of $1,873.
The price spread of $12,282 (90.5% 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.
34 diamonds tracked in this segment
Price range: $1,294 to $13,576
Average price: $2,682
Median price: $1,873
Available across 4 retailers
Savings potential: up to 90.5%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
34
$1,294
$2,682
$1,873
$13,576
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 89.4%6.66ct | Radiant | F | VVS2 | Excellent
From $1,588
Compare at $14,920
IGISave 63.4%6.66ct | Radiant | D | VVS1 | Ideal
From $13,576
Compare at $37,134
IGISave 50.3%6.66ct | Radiant | E | VVS2 | Ideal
From $2,171
Compare at $4,369
IGISave 78.7%6.67ct | Radiant | G | VS1 | Excellent
From $1,647
Compare at $7,730
IGISave 87.9%6.67ct | Radiant | F | VVS2 | Ideal
From $1,796
Compare at $14,870
IGISave 86.7%6.67ct | Radiant | G | VS1 | Ideal
From $1,893
Compare at $14,180
IGISave 88%6.67ct | Radiant | F | SI1 | Ideal
From $1,294
Compare at $10,770
IGI6.67ct | Radiant | E | VS1 | Very Good
From $2,224
Compare at $2,303
IGISave 88.7%6.67ct | Radiant | F | VS1 | Excellent
From $1,553
Compare at $13,800
IGISave 29%6.68ct | Radiant | H | VS2 | Ideal
From $1,302
Compare at $1,833
IGISave 59.4%6.68ct | Radiant | G | VVS2 | Ideal
From $1,447
Compare at $3,565
IGISave 50.9%6.68ct | Radiant | E | VVS1 | Very Good
From $4,289
Compare at $8,744
IGISave 80.7%6.68ct | Radiant | G | VS1 | Very Good
From $1,838
Compare at $9,520
IGISave 89.5%6.69ct | Radiant | F | VVS2 | Ideal
From $1,567
Compare at $14,980
IGISave 88.8%6.7ct | Radiant | G | VS1 | Ideal
From $1,599
Compare at $14,240
IGISave 65.3%6.7ct | Radiant | G | VS1 | Ideal
From $3,145
Compare at $9,060
IGISave 78.7%6.7ct | Radiant | G | VS1 | Excellent
From $1,653
Compare at $7,760
IGISave 87.9%6.7ct | Radiant | F | VVS2 | Ideal
From $1,803
Compare at $14,930
IGISave 78.7%6.7ct | Radiant | E | VVS2 | Ideal
From $3,530
Compare at $16,610
IGISave 80.1%6.71ct | Radiant | F | VVS1 | Excellent
From $3,446
Compare at $17,310
IGISave 80.3%6.71ct | Radiant | E | VVS2 | Very Good
From $2,754
Compare at $13,960
IGISave 86.6%6.71ct | Radiant | G | VS1 | Ideal
From $1,904
Compare at $14,260
IGISave 66.6%6.71ct | Radiant | F | VS1 | Ideal
From $1,768
Compare at $5,300
IGISave 41.4%6.71ct | Radiant | E | VS1 | Ideal
From $9,780
Compare at $16,680
IGISave 85%6.71ct | Radiant | F | VVS2 | Ideal
From $1,569
Compare at $10,490
IGISave 87.5%6.72ct | Radiant | F | VS1 | Excellent
From $1,730
Compare at $13,820
IGISave 34.8%6.72ct | Radiant | F | VVS2 | Ideal
From $2,100
Compare at $3,221
IGISave 75.8%6.72ct | Radiant | G | VVS2 | Ideal
From $3,207
Compare at $13,270
IGISave 77.3%6.73ct | Radiant | G | VS1 | Very Good
From $1,853
Compare at $8,150
IGISave 85.8%6.73ct | Radiant | F | VVS2 | Very Good
From $2,145
Compare at $15,080
IGISave 81.3%6.73ct | Radiant | F | VVS2 | Very Good
From $2,523
Compare at $13,490
IGISave 87.2%6.74ct | Radiant | F | VS1 | Ideal
From $1,776
Compare at $13,860
IGISave 82.2%6.74ct | Radiant | F | VS1 | Excellent
From $1,997
Compare at $11,250
IGISave 24.4%6.74ct | Radiant | F | VVS2 | Ideal
From $2,728
Compare at $3,609
Entry pricing in this category starts around $1,294.
What to Know When Shopping for 6.7 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $12,282 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 $1,873 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 34 comparable stones in this segment. Prices start around $1,294 and go up to $13,576.
Based on the latest market data, the average asking price is about $2,682 with a median around $1,873.
The observed spread is roughly $12,282 across tracked listings, which is about 90.5% 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 $1,873, 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 $12,282 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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