8.4 Carat Radiant Lab Grown Diamond Prices Comparison
As of February 2026, 8.4 carat radiant lab grown diamonds usually range from $1,608 to $5,196, with an average price of $2,453.In the last month, prices for these diamonds are down 1.8%.Compare 53 verified listings across 3 retailers tracked by CaratRadar.
8.4 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 53 verified 8.4-carat radiant lab grown diamonds listed across 3 online retailers. Prices in this segment range from $1,608 to $5,196, with an average asking price of $2,453 and a median of $2,269.
The price spread of $3,588 (69.1% 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.
53 diamonds tracked in this segment
Price range: $1,608 to $5,196
Average price: $2,453
Median price: $2,269
Available across 3 retailers
Savings potential: up to 69.1%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
53
$1,608
$2,453
$2,269
$5,196
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 73.6%8.35ct | Radiant | F | VVS2 | Ideal
From $2,252
Compare at $8,515
IGISave 91.1%8.35ct | Radiant | F | VVS2 | Excellent
From $2,015
Compare at $22,710
IGISave 81.6%8.35ct | Radiant | F | VVS2 | Very Good
From $3,073
Compare at $16,730
IGISave 85.9%8.35ct | Radiant | E | VVS2 | Ideal
From $2,445
Compare at $17,390
IGISave 87.8%8.36ct | Radiant | F | VS1 | Ideal
From $1,608
Compare at $13,190
IGISave 89.2%8.36ct | Radiant | F | VVS2 | Ideal
From $2,022
Compare at $18,680
IGISave 85.9%8.37ct | Radiant | G | VVS2 | Excellent
From $2,345
Compare at $16,680
IGISave 76.3%8.37ct | Radiant | F | VVS2 | Ideal
From $2,024
Compare at $8,535
IGISave 71.6%8.37ct | Radiant | E | VVS2 | Ideal
From $2,793
Compare at $9,820
IGISave 78.9%8.37ct | Radiant | F | VVS2 | Ideal
From $1,882
Compare at $8,910
IGISave 76.3%8.37ct | Radiant | F | VVS2 | Ideal
From $2,024
Compare at $8,535
IGISave 72.9%8.37ct | Radiant | F | VVS2 | Ideal
From $2,317
Compare at $8,535
IGISave 84.6%8.37ct | Radiant | E | VS1 | Ideal
From $2,451
Compare at $15,960
IGISave 88.7%8.37ct | Radiant | F | VS1 | Ideal
From $1,947
Compare at $17,220
IGISave 86.6%8.38ct | Radiant | F | VS2 | Ideal
From $1,992
Compare at $14,880
IGISave 87.9%8.38ct | Radiant | F | VVS2 | Ideal
From $2,275
Compare at $18,770
IGISave 75.1%8.38ct | Radiant | E | VS1 | Excellent
From $5,196
Compare at $20,830
IGISave 78.9%8.39ct | Radiant | F | VVS2 | Ideal
From $1,886
Compare at $8,940
IGISave 87%8.39ct | Radiant | F | VS1 | Very Good
From $2,256
Compare at $17,310
IGISave 89.3%8.39ct | Radiant | G | VVS2 | Excellent
From $1,771
Compare at $16,570
IGISave 66.5%8.39ct | Radiant | F | VS1 | Ideal
From $2,217
Compare at $6,625
IGISave 39.1%8.39ct | Radiant | F | VVS2 | Ideal
From $2,933
Compare at $4,816
IGISave 79.4%8.39ct | Radiant | F | VVS2 | Ideal
From $1,815
Compare at $8,810
IGISave 85%8.39ct | Radiant | F | VS1 | Ideal
From $2,368
Compare at $15,760
IGISave 72%8.39ct | Radiant | F | VVS2 | Excellent
From $2,300
Compare at $8,220
IGISave 81.8%8.39ct | Radiant | E | VVS2 | Very Good
From $3,178
Compare at $17,460
IGISave 89.2%8.4ct | Radiant | F | VVS2 | Excellent
From $2,030
Compare at $18,810
IGISave 86.6%8.4ct | Radiant | G | VVS2 | Very Good
From $2,228
Compare at $16,640
IGISave 65%8.4ct | Radiant | F | VS2 | Very Good
From $2,230
Compare at $6,380
IGISave 89.2%8.41ct | Radiant | F | VVS2 | Ideal
From $2,033
Compare at $18,790
IGISave 87.7%8.41ct | Radiant | F | VVS2 | Ideal
From $2,306
Compare at $18,790
IGISave 89.2%8.41ct | Radiant | F | VVS2 | Ideal
From $2,033
Compare at $18,790
IGISave 85.6%8.41ct | Radiant | G | VVS2 | Ideal
From $2,407
Compare at $16,740
IGISave 87.1%8.41ct | Radiant | E | VVS2 | Ideal
From $2,463
Compare at $19,040
IGISave 75%8.41ct | Radiant | F | VS1 | Ideal
From $4,331
Compare at $17,300
IGISave 83%8.42ct | Radiant | E | VVS2 | Ideal
From $3,538
Compare at $20,870
IGISave 87%8.42ct | Radiant | F | VS1 | Ideal
From $2,264
Compare at $17,370
IGISave 85.2%8.42ct | Radiant | E | VS1 | Ideal
From $2,488
Compare at $16,810
GIASave 45.2%8.43ct | Radiant | H | VS1 | Very Good
From $4,243
Compare at $7,738
IGISave 17.9%8.43ct | Radiant | F | VVS2 | Ideal
From $2,114
Compare at $2,574
IGISave 71.6%8.43ct | Radiant | E | VVS2 | Ideal
From $2,813
Compare at $9,890
IGISave 71.9%8.43ct | Radiant | E | VVS2 | Ideal
From $2,813
Compare at $10,010
IGISave 71.6%8.43ct | Radiant | E | VVS2 | Ideal
From $2,813
Compare at $9,890
IGISave 89.2%8.43ct | Radiant | F | VVS2 | Ideal
From $2,037
Compare at $18,880
IGISave 85.8%8.43ct | Radiant | E | VS1 | Ideal
From $2,491
Compare at $17,600
IGISave 87.7%8.43ct | Radiant | F | VVS2 | Ideal
From $2,311
Compare at $18,840
IGISave 73.1%8.43ct | Radiant | E | VS1 | Excellent
From $4,145
Compare at $15,399
IGISave 85.7%8.43ct | Radiant | G | VS2 | Ideal
From $2,333
Compare at $16,300
IGISave 76.1%8.44ct | Radiant | F | VVS2 | Ideal
From $2,056
Compare at $8,605
IGISave 75.3%8.44ct | Radiant | F | VVS2 | Excellent
From $2,039
Compare at $8,270
Entry pricing in this category starts around $1,608.
What to Know When Shopping for 8.4 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $3,588 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 $2,269 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 53 comparable stones in this segment. Prices start around $1,608 and go up to $5,196.
Based on the latest market data, the average asking price is about $2,453 with a median around $2,269.
The observed spread is roughly $3,588 across tracked listings, which is about 69.1% 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 $2,269, 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 3 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 $3,588 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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