10.4 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 10.4 carat radiant lab grown diamonds usually range from $1,660 to $29,806, with an average price of $8,658.In the last month, prices for these diamonds are up 1%.Compare 34 verified listings across 4 retailers tracked by CaratRadar.
10.4 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 34 verified 10.4-carat radiant lab grown diamonds listed across 4 online retailers. Prices in this segment range from $1,660 to $29,806, with an average asking price of $8,658 and a median of $5,465.
The price spread of $28,146 (94.4% 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: $1,660 to $29,806
Average price: $8,658
Median price: $5,465
Available across 4 retailers
Savings potential: up to 94.4%
Price Range Overview
As of Apr 16, 2026Real market range for this carat, shape, and diamond type.
34
$1,660
$8,658
$5,465
$29,806
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 70.3%IGI | 10.41ct | Radiant | E | VVS2 | Ideal
From $3,594
Compare at $12,120
Save 49.8%IGI | 10.42ct | Radiant | H | VS2 | Ideal
From $5,239
Compare at $10,440
Save 78.3%IGI | 10.42ct | Radiant | F | VS1 | Ideal
From $4,650
Compare at $21,430
Save 64.9%IGI | 10.42ct | Radiant | F | VVS2 | Ideal
From $3,598
Compare at $10,250
Save 52%IGI | 10.42ct | Radiant | F | VS1 | Ideal
From $5,114
Compare at $10,650
Save 27.1%IGI | 10.42ct | Radiant | F | VVS2 | Ideal
From $3,865
Compare at $5,301
Save 64.6%IGI | 10.42ct | Radiant | G | VVS2 | Very Good
From $3,459
Compare at $9,760
Save 79.1%IGI | 10.43ct | Radiant | F | VVS2 | Excellent
From $4,878
Compare at $23,390
Save 64.6%IGI | 10.43ct | Radiant | F | VS1 | Ideal
From $3,809
Compare at $10,750
Save 70.4%IGI | 10.44ct | Radiant | E | VVS2 | Ideal
From $3,605
Compare at $12,160
Save 70.4%IGI | 10.44ct | Radiant | E | VVS2 | Ideal
From $3,691
Compare at $12,450
Save 70.4%IGI | 10.44ct | Radiant | F | VS1 | Excellent
From $3,691
Compare at $12,450
Save 64.6%IGI | 10.44ct | Radiant | G | VVS2 | Very Good
From $3,466
Compare at $9,780
Save 64.6%IGI | 10.44ct | Radiant | G | VVS2 | Very Good
From $3,466
Compare at $9,780
Save 86.4%IGI | 10.45ct | Radiant | F | VVS2 | Excellent
From $3,177
Compare at $23,420
Save 64.9%IGI | 10.45ct | Radiant | F | VVS2 | Ideal
From $3,608
Compare at $10,280
Save 64.9%IGI | 10.45ct | Radiant | F | VVS2 | Ideal
From $3,608
Compare at $10,280
Save 64.6%IGI | 10.45ct | Radiant | G | VVS2 | Very Good
From $3,469
Compare at $9,790
Save 45%IGI | 10.45ct | Radiant | F | VVS2 | Ideal
From $2,922
Compare at $5,317
Save 80%IGI | 10.46ct | Radiant | F | VVS2 | Excellent
From $4,682
Compare at $23,450
Save 86.3%IGI | 10.47ct | Radiant | F | VS1 | Excellent
From $2,970
Compare at $21,660
Save 47.9%IGI | 10.47ct | Radiant | E | VS2 | Ideal
From $10,839
Compare at $20,800
Save 45.1%IGI | 10.47ct | Radiant | F | VVS2 | Ideal
From $2,927
Compare at $5,327
Save 66.4%IGI | 10.48ct | Radiant | H | VS1 | Ideal
From $5,254
Compare at $15,650
Save 64.9%IGI | 10.48ct | Radiant | F | VVS2 | Ideal
From $3,619
Compare at $10,310
Save 64.1%IGI | 10.48ct | Radiant | E | VVS2 | Ideal
From $4,454
Compare at $12,390
Save 73.2%IGI | 10.48ct | Radiant | F | VS1 | Ideal
From $2,930
Compare at $10,920
Save 81.8%IGI | 10.48ct | Radiant | E | VVS2 | Ideal
From $4,760
Compare at $26,110
Save 45%IGI | 10.48ct | Radiant | F | VVS2 | Ideal
From $2,930
Compare at $5,331
Save 46.4%IGI | 10.48ct | Radiant | E | VVS2 | Ideal
From $3,427
Compare at $6,399
Save 70.3%IGI | 10.49ct | Radiant | E | VVS2 | Ideal
From $3,622
Compare at $12,210
Save 87.7%IGI | 10.49ct | Radiant | F | VVS2 | Ideal
From $2,895
Compare at $23,500
Save 45%IGI | 10.49ct | Radiant | F | VVS2 | Ideal
From $2,933
Compare at $5,336
Save 81.8%IGI | 10.49ct | Radiant | E | VVS2 | Ideal
From $4,764
Compare at $26,130
Entry pricing in this category starts around $1,660.
What to Know When Shopping for 10.4 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $28,146 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 $5,465 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 $1,660 and go up to $29,806.
Based on the latest market data, the average asking price is about $8,658 with a median around $5,465.
The observed spread is roughly $28,146 across tracked listings, which is about 94.4% 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 $5,465, 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 $28,146 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
Explore adjacent carat ranges and shapes to compare market shifts.
10.3 Carat Radiant Lab Grown Diamond Prices
10.5 Carat Radiant Lab Grown Diamond Prices
10.2 Carat Radiant Lab Grown Diamond Prices
10.6 Carat Radiant Lab Grown Diamond Prices
10.1 Carat Radiant Lab Grown Diamond Prices
10.7 Carat Radiant Lab Grown Diamond Prices
10 Carat Radiant Lab Grown Diamond Prices
10.4 Carat Emerald Lab Grown Diamond Prices
10.4 Carat Pear Lab Grown Diamond Prices
10.4 Carat Cushion Lab Grown Diamond Prices
10.4 Carat Oval Lab Grown Diamond Prices
10.4 Carat Marquise Lab Grown Diamond Prices
Tracking Lab Grown inventory for 10.4 carat Radiant diamonds.