10.5 Carat Radiant Lab Grown Diamond Prices Comparison
As of April 2026, 10.5 carat radiant lab grown diamonds usually range from $615 to $39,424, with an average price of $9,089.In the last month, prices for these diamonds are down 0.1%.Compare 86 verified listings across 6 retailers tracked by CaratRadar.
10.5 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 86 verified 10.5-carat radiant lab grown diamonds listed across 6 online retailers. Prices in this segment range from $615 to $39,424, with an average asking price of $9,089 and a median of $6,308.
The price spread of $38,809 (98.4% 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.
86 diamonds tracked in this segment
Price range: $615 to $39,424
Average price: $9,089
Median price: $6,308
Available across 6 retailers
Savings potential: up to 98.4%
Price Range Overview
As of Apr 18, 2026Real market range for this carat, shape, and diamond type.
86
$615
$9,089
$6,308
$39,424
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 75%GIA | 10.5ct | Radiant | F | VS1 | Very Good
From $10,093
Compare at $40,373
Save 70.1%IGI | 10.5ct | Radiant | E | VVS2 | Ideal
From $3,625
Compare at $12,120
Save 68.4%IGI | 10.5ct | Radiant | F | VVS2 | Ideal
From $3,261
Compare at $10,330
IGI | 10.5ct | Radiant | FANCY | VS1 | Very Good
From $6,291
Compare at $10,920
Save 80%IGI | 10.5ct | Radiant | F | VVS2 | Very Good
From $4,700
Compare at $23,540
Save 70.6%IGI | 10.5ct | Radiant | F | VVS2 | Ideal
From $3,895
Compare at $13,230
Save 70.6%IGI | 10.5ct | Radiant | F | VVS2 | Ideal
From $3,895
Compare at $13,230
Save 64.6%IGI | 10.5ct | Radiant | F | VS1 | Ideal
From $3,835
Compare at $10,830
Save 41.4%IGI | 10.5ct | Radiant | E | VVS2 | Ideal
From $15,330
Compare at $26,160
Save 64.6%IGI | 10.5ct | Radiant | F | VS1 | Ideal
From $3,835
Compare at $10,830
Save 70.3%IGI | 10.51ct | Radiant | G | VS2 | Ideal
From $3,811
Compare at $12,850
Save 43.3%IGI | 10.51ct | Radiant | E | VVS2 | Ideal
From $4,141
Compare at $7,304
Save 76.7%IGI | 10.51ct | Radiant | D | VVS2 | Ideal
From $7,218
Compare at $31,040
Save 74.2%IGI | 10.51ct | Radiant | E | VS1 | Excellent
From $4,126
Compare at $15,980
Save 52.4%IGI | 10.51ct | Radiant | F | VVS2 | Ideal
From $4,921
Compare at $10,340
Save 55.1%IGI | 10.51ct | Radiant | F | VVS2 | Ideal
From $8,881
Compare at $19,795
Save 87.7%IGI | 10.51ct | Radiant | F | VVS2 | Very Good
From $2,900
Compare at $23,550
Save 77.8%IGI | 10.51ct | Radiant | F | VVS2 | Ideal
From $2,938
Compare at $13,240
Save 41.4%IGI | 10.51ct | Radiant | E | VVS2 | Ideal
From $15,340
Compare at $26,180
Save 77.8%IGI | 10.51ct | Radiant | F | VVS2 | Ideal
From $2,938
Compare at $13,240
Save 81.2%IGI | 10.51ct | Radiant | G | VVS2 | Very Good
From $1,850
Compare at $9,840
Save 81.8%IGI | 10.51ct | Radiant | F | VVS2 | Very Good
From $2,230
Compare at $12,240
Save 88.3%IGI | 10.51ct | Radiant | E | VS1 | Very Good
From $2,445
Compare at $20,874
Save 80.5%IGI | 10.52ct | Radiant | G | VS2 | Excellent
From $3,355
Compare at $17,210
Save 78.4%IGI | 10.52ct | Radiant | E | VS1 | Ideal
From $5,652
Compare at $26,150
Save 41.4%IGI | 10.52ct | Radiant | E | VVS2 | Ideal
From $15,355
Compare at $26,210
Save 81.2%IGI | 10.52ct | Radiant | G | VVS2 | Ideal
From $1,835
Compare at $9,750
Save 87.7%IGI | 10.52ct | Radiant | E | VVS2 | Excellent
From $3,235
Compare at $26,210
Save 29.2%GIA | 10.53ct | Radiant | J | VS2 | Very Good
From $6,501
Compare at $9,181
Save 76.2%IGI | 10.53ct | Radiant | F | SI1 | Ideal
From $4,020
Compare at $16,890
Save 43.4%IGI | 10.53ct | Radiant | I | VS2 | Ideal
From $5,265
Compare at $9,305
Save 87.3%IGI | 10.53ct | Radiant | F | VVS2 | Ideal
From $3,003
Compare at $23,580
Save 91.1%IGI | 10.53ct | Radiant | E | VVS2 | Ideal
From $2,335
Compare at $26,100
Save 87.2%IGI | 10.53ct | Radiant | F | VVS2 | Excellent
From $3,009
Compare at $23,590
Save 52.4%IGI | 10.53ct | Radiant | F | VVS2 | Ideal
From $4,930
Compare at $10,360
Save 70.3%IGI | 10.53ct | Radiant | H | VVS2 | Excellent
From $3,665
Compare at $12,360
Save 80.2%IGI | 10.53ct | Radiant | G | VVS2 | Excellent
From $4,150
Compare at $20,910
Save 70.6%IGI | 10.53ct | Radiant | F | VVS2 | Ideal
From $3,906
Compare at $13,265
Save 70.6%IGI | 10.53ct | Radiant | F | VVS2 | Ideal
From $3,906
Compare at $13,265
Save 43.7%IGI | 10.53ct | Radiant | F | VVS2 | Ideal
From $13,265
Compare at $23,580
Save 64.6%IGI | 10.53ct | Radiant | F | VS1 | Ideal
From $3,846
Compare at $10,860
Save 77.8%IGI | 10.53ct | Radiant | F | VVS2 | Very Good
From $2,944
Compare at $13,265
IGI | 10.53ct | Radiant | E | VVS2 | Ideal
From $3,360
Compare at $26,230
Save 76.1%IGI | 10.53ct | Radiant | F | VS1 | Very Good
From $5,198
Compare at $21,780
Save 87.9%IGI | 10.53ct | Radiant | F | VVS2 | Excellent
From $2,863
Compare at $23,590
Save 68%IGI | 10.54ct | Radiant | G | VS1 | Excellent
From $2,980
Compare at $9,300
Save 55.1%IGI | 10.54ct | Radiant | F | VVS2 | Ideal
From $8,906
Compare at $19,851
Save 62.7%IGI | 10.54ct | Radiant | G | VVS2 | Excellent
From $4,721
Compare at $12,640
Save 77.2%IGI | 10.54ct | Radiant | H | VVS2 | Ideal
From $3,153
Compare at $13,820
Save 68.6%IGI | 10.54ct | Radiant | E | VVS2 | Ideal
From $4,827
Compare at $15,385
Entry pricing in this category starts around $615.
What to Know When Shopping for 10.5 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $38,809 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 $6,308 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 86 comparable stones in this segment. Prices start around $615 and go up to $39,424.
Based on the latest market data, the average asking price is about $9,089 with a median around $6,308.
The observed spread is roughly $38,809 across tracked listings, which is about 98.4% 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 $6,308, 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 $38,809 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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