1.3 Carat Radiant Natural Diamond Prices Comparison
As of April 2026, 1.3 carat radiant natural diamonds usually range from $820 to $18,688, with an average price of $5,778.In the last month, prices for these diamonds are down 0.4%.Compare 74 verified listings across 8 retailers tracked by CaratRadar.
1.3 Carat Radiant Natural Diamond Market Overview
CaratRadar currently tracks 74 verified 1.3-carat radiant natural diamonds listed across 8 online retailers. Prices in this segment range from $820 to $18,688, with an average asking price of $5,778 and a median of $5,530.
The price spread of $17,868 (95.6% 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.
74 diamonds tracked in this segment
Price range: $820 to $18,688
Average price: $5,778
Median price: $5,530
Available across 8 retailers
Savings potential: up to 95.6%
Price Range Overview
As of Apr 15, 2026Real market range for this carat, shape, and diamond type.
74
$820
$5,778
$5,530
$18,688
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 19.9%GIA | 1.31ct | Radiant | J | VS1 | Excellent
From $3,929
Compare at $4,903
Save 14%GIA | 1.31ct | Radiant | D | VS2 | Excellent
From $6,691
Compare at $7,777
GIA | 1.31ct | Radiant | I | VVS2 | Excellent
From $4,376
Compare at $4,791
GIA | 1.31ct | Radiant | E | VS2 | Excellent
From $6,143
Compare at $6,782
GIA | 1.31ct | Radiant | I | VVS2 | Excellent
From $4,704
Compare at $5,002
GIA | 1.31ct | Radiant | G | VS2 | Excellent
From $5,809
Compare at $5,996
GIA | 1.31ct | Radiant | D | SI1 | Excellent
From $4,166
Compare at $4,507
Save 13.9%GIA | 1.31ct | Radiant | F | VS1 | Very Good
From $6,989
Compare at $8,116
GIA | 1.31ct | Radiant | D | SI2 | Excellent
From $5,020
Compare at $5,187
GIA | 1.31ct | Radiant | H | VVS2 | Excellent
From $5,250
Compare at $5,515
Save 16.3%GIA | 1.31ct | Radiant | H | SI1 | Ideal
From $4,343
Compare at $5,189
GIA | 1.31ct | Radiant | H | SI1 | Excellent
From $4,000
Compare at $4,305
Save 15.9%GIA | 1.31ct | Radiant | F | VS1 | Excellent
From $7,518
Compare at $8,935
GIA | 1.31ct | Radiant | D | SI1 | Ideal
From $4,781
Compare at $4,860
Save 15.5%GIA | 1.31ct | Radiant | E | VS1 | Good
From $5,419
Compare at $6,412
Save 13.9%GIA | 1.31ct | Radiant | D | VS1 | Good
From $5,854
Compare at $6,795
GIA | 1.31ct | Radiant | H | SI2 | Ideal
From $4,375
Compare at $4,654
Save 10.2%GIA | 1.31ct | Radiant | D | VS1 | Excellent
From $6,715
Compare at $7,477
Save 23.8%GIA | 1.31ct | Radiant | L | SI1 | Ideal
From $1,706
Compare at $2,238
Save 34.9%GIA | 1.31ct | Radiant | F | VVS1 | Very Good
From $6,934
Compare at $10,654
Save 16.3%GIA | 1.31ct | Radiant | D | SI2 | Excellent
From $4,587
Compare at $5,478
Save 24%GIA | 1.31ct | Radiant | I | VS2 | Excellent
From $4,837
Compare at $6,361
Save 25.8%GIA | 1.31ct | Radiant | E | VS2 | Excellent
From $5,044
Compare at $6,802
Save 16.9%GIA | 1.31ct | Radiant | F | VS1 | Excellent
From $6,166
Compare at $7,419
GIA | 1.31ct | Radiant | H | VS2 | Very Good
From $5,002
Compare at $5,365
GIA | 1.31ct | Radiant | I | VS1 | Very Good
From $5,110
Compare at $5,316
Save 23.9%GIA | 1.31ct | Radiant | E | VS1 | Excellent
From $6,725
Compare at $8,842
Save 27.7%GIA | 1.31ct | Radiant | L | VS1 | Excellent
From $2,401
Compare at $3,322
GIA | 1.31ct | Radiant | E | SI1 | Excellent
From $3,259
Compare at $3,325
Save 14.5%GIA | 1.31ct | Radiant | F | VVS1 | Excellent
From $6,985
Compare at $8,169
Save 20.2%GIA | 1.31ct | Radiant | J | SI1 | Excellent
From $2,421
Compare at $3,034
Save 31.9%GIA | 1.31ct | Radiant | G | SI1 | Very Good
From $4,621
Compare at $6,788
GIA | 1.31ct | Radiant | E | SI2 | Ideal
From $3,970
Compare at $4,125
GIA | 1.31ct | Radiant | K | VS1 | Excellent
From $4,312
Compare at $4,445
GIA | 1.31ct | Radiant | D | VS1 | Ideal
From $8,240
Compare at $8,617
GIA | 1.31ct | Radiant | H | SI2 | Excellent
From $3,660
Compare at $3,756
GIA | 1.31ct | Radiant | F | SI1 | Ideal
From $4,530
Compare at $4,723
Save 26.7%GIA | 1.31ct | Radiant | F | SI1 | Excellent
From $4,218
Compare at $5,753
GIA | 1.31ct | Radiant | J | VS2 | Excellent
From $3,914
Compare at $4,024
GIA | 1.31ct | Radiant | F | SI2 | Excellent
From $4,250
Compare at $4,385
Save 19.8%GIA | 1.31ct | Radiant | I | SI2 | Ideal
From $2,926
Compare at $3,648
Save 14.9%IGI | 1.31ct | Radiant | I | VVS2 | Very Good
From $4,315
Compare at $5,070
GIA | 1.32ct | Radiant | D | VS1 | Excellent
From $8,620
Compare at $9,564
Save 23.4%GIA | 1.32ct | Radiant | J | VS1 | Excellent
From $4,807
Compare at $6,278
GIA | 1.32ct | Radiant | F | SI1 | Excellent
From $4,322
Compare at $4,647
Save 13.7%GIA | 1.32ct | Radiant | G | VS2 | Excellent
From $5,936
Compare at $6,878
Save 17.4%GIA | 1.32ct | Radiant | D | SI2 | Excellent
From $3,902
Compare at $4,723
Save 27%GIA | 1.32ct | Radiant | I | IF | Excellent
From $4,938
Compare at $6,768
GIA | 1.32ct | Radiant | F | SI2 | Excellent
From $4,430
Compare at $4,602
GIA | 1.32ct | Radiant | E | SI2 | Ideal
From $4,810
Compare at $4,941
Entry pricing in this category starts around $820.
What to Know When Shopping for 1.3 Carat Radiant Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $17,868 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 $5,530 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.
- Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
- 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 74 comparable stones in this segment. Prices start around $820 and go up to $18,688.
Based on the latest market data, the average asking price is about $5,778 with a median around $5,530.
The observed spread is roughly $17,868 across tracked listings, which is about 95.6% 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 $5,530, 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 8 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 $17,868 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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Tracking Natural inventory for 1.3 carat Radiant diamonds.