7.9 Carat Round Lab Grown Diamond Prices Comparison
As of February 2026, 7.9 carat round lab grown diamonds usually range from $1,811 to $30,910, with an average price of $5,325.In the last month, prices for these diamonds are down 4.9%.Compare 22 verified listings across 6 retailers tracked by CaratRadar.
7.9 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 22 verified 7.9-carat round lab grown diamonds listed across 6 online retailers. Prices in this segment range from $1,811 to $30,910, with an average asking price of $5,325 and a median of $2,524.
The price spread of $29,099 (94.1% 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.
22 diamonds tracked in this segment
Price range: $1,811 to $30,910
Average price: $5,325
Median price: $2,524
Available across 6 retailers
Savings potential: up to 94.1%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
22
$1,811
$5,325
$2,524
$30,910
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 85.2%7.85ct | Round | G | SI1 | Ideal
From $1,910
Compare at $12,910
7.85ct | Round | G | VS1 | Ideal
From $5,103
Compare at $12,320
IGISave 81.5%7.85ct | Round | F | VS2 | Excellent
From $2,305
Compare at $12,430
7.85ct | Round | G | VS2 | Ideal
From $2,416
Compare at $16,460
7.86ct | Round | G | VS2 | Ideal
From $2,071
Compare at $16,480
7.86ct | Round | E | VS2 | Ideal
From $3,200
Compare at $17,260
IGISave 86.4%7.87ct | Round | G | VS1 | Ideal
From $2,632
Compare at $19,390
7.87ct | Round | G | VS2 | Ideal
From $2,043
Compare at $16,500
IGISave 86.5%7.87ct | Round | E | VS1 | Ideal
From $3,280
Compare at $24,240
7.87ct | Round | E | VS2 | Ideal
From $10,842
Compare at $25,774
IGI7.88ct | Round | F | VS1 | Ideal
From $11,751
Compare at $12,750
GIASave 73.6%7.88ct | Round | F | VS1 | Ideal
From $4,969
Compare at $18,850
IGISave 76.6%7.89ct | Round | D | VS1 | Excellent
From $5,620
Compare at $24,030
GIASave 53%7.89ct | Round | D | VS1 | Excellent
From $30,910
Compare at $65,795
IGISave 68.6%7.9ct | Round | F | VS1 | Excellent
From $1,882
Compare at $6,000
IGISave 88.5%7.9ct | Round | G | VS1 | Ideal
From $2,239
Compare at $19,470
IGISave 88.8%7.91ct | Round | F | VVS2 | Excellent
From $1,956
Compare at $17,530
7.91ct | Round | F | VVS2 | Ideal
From $2,229
Compare at $24,560
IGISave 69.9%7.91ct | Round | F | VS2 | Excellent
From $1,811
Compare at $6,010
IGISave 55%7.92ct | Round | F | SI2 | Ideal
From $2,648
Compare at $5,880
IGI7.93ct | Round | E | VS1 | Ideal
From $12,980
Compare at $13,997
IGISave 61.8%7.94ct | Round | E | VS2 | Excellent
From $2,346
Compare at $6,136
Entry pricing in this category starts around $1,811.
What to Know When Shopping for 7.9 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $29,099 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 $2,524 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 22 comparable stones in this segment. Prices start around $1,811 and go up to $30,910.
Based on the latest market data, the average asking price is about $5,325 with a median around $2,524.
The observed spread is roughly $29,099 across tracked listings, which is about 94.1% 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 $2,524, 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 6 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 $29,099 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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