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.

Market Insights
Last updated: 2026-02-28

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, 2026
Spread $29,099

Real market range for this carat, shape, and diamond type.

$1,811$30,910
Tracked

22

Lowest

$1,811

Average

$5,325

Median

$2,524

Highest

$30,910

Price History

Price Comparison Matrix

Live Listings

See all listings

Compare current retailer offers for this exact segment and open any listing for full details.

7.85ct | Round | G | SI1 | IdealIGI
Save 85.2%

7.85ct | Round | G | SI1 | Ideal

From $1,910

Compare at $12,910

6 stores
7.85ct | Round | G | VS1 | IdealIGI
Save 58.6%

7.85ct | Round | G | VS1 | Ideal

From $5,103

Compare at $12,320

3 stores
7.85ct | Round | F | VS2 | ExcellentIGI
Save 81.5%

7.85ct | Round | F | VS2 | Excellent

From $2,305

Compare at $12,430

5 stores
7.85ct | Round | G | VS2 | IdealIGI
Save 85.3%

7.85ct | Round | G | VS2 | Ideal

From $2,416

Compare at $16,460

5 stores
7.86ct | Round | G | VS2 | IdealIGI
Save 87.4%

7.86ct | Round | G | VS2 | Ideal

From $2,071

Compare at $16,480

4 stores
IGI
Save 81.5%

7.86ct | Round | E | VS2 | Ideal

From $3,200

Compare at $17,260

2 stores
7.87ct | Round | G | VS1 | IdealIGI
Save 86.4%

7.87ct | Round | G | VS1 | Ideal

From $2,632

Compare at $19,390

5 stores
7.87ct | Round | G | VS2 | IdealIGI
Save 87.6%

7.87ct | Round | G | VS2 | Ideal

From $2,043

Compare at $16,500

6 stores
7.87ct | Round | E | VS1 | IdealIGI
Save 86.5%

7.87ct | Round | E | VS1 | Ideal

From $3,280

Compare at $24,240

4 stores
7.87ct | Round | E | VS2 | IdealGIA
Save 57.9%

7.87ct | Round | E | VS2 | Ideal

From $10,842

Compare at $25,774

3 stores
7.88ct | Round | F | VS1 | IdealIGI

7.88ct | Round | F | VS1 | Ideal

From $11,751

Compare at $12,750

2 stores
7.88ct | Round | F | VS1 | IdealGIA
Save 73.6%

7.88ct | Round | F | VS1 | Ideal

From $4,969

Compare at $18,850

5 stores
7.89ct | Round | D | VS1 | ExcellentIGI
Save 76.6%

7.89ct | Round | D | VS1 | Excellent

From $5,620

Compare at $24,030

6 stores
7.89ct | Round | D | VS1 | ExcellentGIA
Save 53%

7.89ct | Round | D | VS1 | Excellent

From $30,910

Compare at $65,795

2 stores
7.9ct | Round | F | VS1 | ExcellentIGI
Save 68.6%

7.9ct | Round | F | VS1 | Excellent

From $1,882

Compare at $6,000

4 stores
7.9ct | Round | G | VS1 | IdealIGI
Save 88.5%

7.9ct | Round | G | VS1 | Ideal

From $2,239

Compare at $19,470

4 stores
7.91ct | Round | F | VVS2 | ExcellentIGI
Save 88.8%

7.91ct | Round | F | VVS2 | Excellent

From $1,956

Compare at $17,530

6 stores
7.91ct | Round | F | VVS2 | IdealIGI
Save 90.9%

7.91ct | Round | F | VVS2 | Ideal

From $2,229

Compare at $24,560

7 stores
7.91ct | Round | F | VS2 | ExcellentIGI
Save 69.9%

7.91ct | Round | F | VS2 | Excellent

From $1,811

Compare at $6,010

4 stores
7.92ct | Round | F | SI2 | IdealIGI
Save 55%

7.92ct | Round | F | SI2 | Ideal

From $2,648

Compare at $5,880

3 stores
7.93ct | Round | E | VS1 | IdealIGI

7.93ct | Round | E | VS1 | Ideal

From $12,980

Compare at $13,997

2 stores
7.94ct | Round | E | VS2 | ExcellentIGI
Save 61.8%

7.94ct | Round | E | VS2 | Excellent

From $2,346

Compare at $6,136

4 stores

Entry pricing in this category starts around $1,811.

What to Know When Shopping for 7.9 Carat Round Lab Grown Diamonds

  1. Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $29,099 or more.
  2. 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.
  3. 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.
  4. 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.
  5. Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
  6. Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
  7. 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.

Related Price Categories

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Tracking Lab Grown inventory for 7.9 carat Round diamonds.