7.7 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 7.7 carat radiant lab grown diamonds usually range from $1,360 to $38,482, with an average price of $6,607.In the last month, prices for these diamonds are down 1.2%.Compare 30 verified listings across 5 retailers tracked by CaratRadar.
7.7 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 30 verified 7.7-carat radiant lab grown diamonds listed across 5 online retailers. Prices in this segment range from $1,360 to $38,482, with an average asking price of $6,607 and a median of $4,634.
The price spread of $37,122 (96.5% 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.
30 diamonds tracked in this segment
Price range: $1,360 to $38,482
Average price: $6,607
Median price: $4,634
Available across 5 retailers
Savings potential: up to 96.5%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
30
$1,360
$6,607
$4,635
$38,482
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 72.9%GCAL | 7.71ct | Radiant | E | VVS2 | Excellent
From $3,884
Compare at $14,320
Save 74.9%IGI | 7.71ct | Radiant | G | VS2 | Ideal
From $2,489
Compare at $9,900
Save 87.6%IGI | 7.71ct | Radiant | E | VS1 | Ideal
From $2,386
Compare at $19,290
Save 34.5%IGI | 7.71ct | Radiant | FANCY | VS1 | Excellent
From $4,523
Compare at $6,904
IGI | 7.71ct | Radiant | E | VVS2 | Very Good
From $2,403
Compare at $18,240
Save 59.1%GIA | 7.72ct | Radiant | E | VS1 | Ideal
From $20,040
Compare at $49,000
Save 83.9%IGI | 7.72ct | Radiant | G | VS1 | Ideal
From $2,201
Compare at $13,710
Save 78.2%IGI | 7.72ct | Radiant | G | VS1 | Ideal
From $2,337
Compare at $10,700
Save 71.4%IGI | 7.72ct | Radiant | E | VS1 | Very Good
From $3,740
Compare at $13,080
Save 71.3%IGI | 7.72ct | Radiant | F | VS1 | Very Good
From $3,559
Compare at $12,420
Save 71.4%IGI | 7.72ct | Radiant | E | VS1 | Very Good
From $3,740
Compare at $13,080
Save 71.4%IGI | 7.72ct | Radiant | E | VS1 | Very Good
From $3,740
Compare at $13,080
Save 73%IGI | 7.72ct | Radiant | D | VS1 | Ideal
From $5,119
Compare at $18,970
Save 84.8%IGI | 7.73ct | Radiant | G | VS1 | Ideal
From $2,090
Compare at $13,710
Save 71.3%IGI | 7.73ct | Radiant | F | VS1 | Very Good
From $3,563
Compare at $12,430
Save 28.7%IGI | 7.73ct | Radiant | H | VS2 | Very Good
From $1,593
Compare at $2,233
Save 84.8%IGI | 7.74ct | Radiant | G | VVS1 | Ideal
From $2,619
Compare at $17,210
Save 36.4%IGI | 7.74ct | Radiant | E | VS1 | Ideal
From $3,321
Compare at $5,225
Save 77.9%IGI | 7.74ct | Radiant | G | VVS2 | Ideal
From $2,098
Compare at $9,490
Save 71.4%IGI | 7.76ct | Radiant | E | VVS2 | Ideal
From $2,852
Compare at $9,960
Save 87%IGI | 7.76ct | Radiant | E | VS1 | Very Good
From $2,507
Compare at $19,290
Save 86.1%IGI | 7.77ct | Radiant | E | VVS2 | Excellent
From $2,690
Compare at $19,370
IGI | 7.77ct | Radiant | E | VVS2 | Very Good
From $2,422
Compare at $19,360
Save 29.4%GIA | 7.78ct | Radiant | E | SI1 | Excellent
From $6,444
Compare at $9,122
Save 85.6%IGI | 7.78ct | Radiant | G | VS1 | Excellent
From $1,993
Compare at $13,800
Save 75.4%IGI | 7.78ct | Radiant | E | VS1 | Excellent
From $3,284
Compare at $13,370
Save 85.8%IGI | 7.78ct | Radiant | F | VVS2 | Excellent
From $2,254
Compare at $15,850
Save 87.9%IGI | 7.78ct | Radiant | F | VVS2 | Ideal
From $2,108
Compare at $17,420
Save 40.5%GIA | 7.79ct | Radiant | F | VS2 | Excellent
From $6,189
Compare at $10,401
Save 61.5%IGI | 7.79ct | Radiant | F | VVS2 | Ideal
From $3,345
Compare at $8,681
Entry pricing in this category starts around $1,360.
What to Know When Shopping for 7.7 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $37,122 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 $4,634 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 30 comparable stones in this segment. Prices start around $1,360 and go up to $38,482.
Based on the latest market data, the average asking price is about $6,607 with a median around $4,634.
The observed spread is roughly $37,122 across tracked listings, which is about 96.5% 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 $4,634, 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 $37,122 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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