1.3 Carat Natural Diamond Prices Comparison
As of July 2026, the average price of a 1.3 carat natural diamond is $6,148.1.3 carat diamonds can cost anywhere from $494 to $20,542 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are down 0.4%.Compare 2,033 verified listings across 10 retailers in the tables below.
1.3 Carat Natural Diamond Market Overview
CaratRadar currently tracks 2,033 verified 1.3-carat natural diamonds listed across 10 online retailers. Prices in this segment range from $494 to $20,542, with an average asking price of $6,148 and a median of $5,620.
The price spread of $20,048 (97.6% 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.
2,033 diamonds tracked in this segment
Price range: $494 to $20,542
Average price: $6,148
Median price: $5,620
Available across 10 retailers
Savings potential: up to 97.6%
Price Range Overview
As of Jul 13, 2026Real market range for this carat, shape, and diamond type.
2,033
$494
$6,148
$5,620
$20,542
Price History
Price Comparison Matrix
1.3 Carat Natural Diamond Prices by Shape
Shape-level averages for this carat and type. Open each shape page for full market detail.
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
HRD | 1.31ct | Pear | I | I1 | Ideal
From $1,041
Compare at $1,123
Save 20.9%GIA | 1.34ct | Cushion | L | SI2 | Very Good
From $1,163
Compare at $1,470
IGI | 1.33ct | Round | K | SI1 | Excellent
From $1,355
IGI | 1.31ct | Pear | K | SI1 | Ideal
From $1,378
Compare at $1,395
Save 34.4%GIA | 1.35ct | Pear | L | SI1 | Ideal
From $1,398
Compare at $2,132
Save 32.2%GIA | 1.33ct | Cushion | J | SI1 | Excellent
From $1,448
Compare at $2,137
IGI | 1.33ct | Heart | K | SI1 | Very Good
From $1,457
Compare at $1,475
Save 34.6%GIA | 1.35ct | Cushion | K | VS2 | Excellent
From $1,500
Compare at $2,292
Save 12.2%GIA | 1.32ct | Cushion | I | SI2 | Very Good
From $1,501
Compare at $1,710
Save 34.9%GIA | 1.34ct | Princess | J | SI2 | Ideal
From $1,502
Compare at $2,306
IGI | 1.36ct | Pear | K | SI1 | Very Good
From $1,524
Compare at $1,540
IGI | 1.31ct | Heart | K | SI1 | Very Good
From $1,528
Compare at $1,545
Save 17.9%IGI | 1.31ct | Round | L | VS2 | Ideal
From $1,542
Compare at $1,879
IGI | 1.31ct | Round | K | SI1 | Excellent
From $1,546
Compare at $1,550
Save 34.4%GIA | 1.31ct | Round | J | SI2 | Ideal
From $1,547
Compare at $2,358
Save 16.8%GIA | 1.31ct | Cushion | J | SI2 | Excellent
From $1,605
Compare at $1,929
Save 28.2%GIA | 1.31ct | Oval | J | SI2 | Excellent
From $1,605
Compare at $2,235
IGI | 1.31ct | Oval | I | SI2 | Ideal
From $1,624
Compare at $1,639
HRD | 1.31ct | Oval | F | I1 | Ideal
From $1,645
Compare at $1,688
Save 20.2%GIA | 1.31ct | Emerald | K | SI1 | Excellent
From $1,672
Compare at $2,096
Save 34.4%GIA | 1.32ct | Cushion | H | SI2 | Ideal
From $1,673
Compare at $2,550
GIA | 1.31ct | Cushion | K | VS2 | Excellent
From $1,674
Compare at $1,837
Save 23.9%GIA | 1.33ct | Oval | L | VS2 | Excellent
From $1,679
Compare at $2,207
Save 16.8%GIA | 1.34ct | Princess | J | SI2 | Excellent
From $1,700
Compare at $2,044
IGI | 1.31ct | Round | G | SI2 | Ideal
From $1,711
Save 20.2%GIA | 1.38ct | Oval | L | VVS1 | Excellent
From $1,720
Compare at $2,156
IGI | 1.31ct | Marquise | I | SI2 | Ideal
From $1,734
Compare at $1,764
Save 24.9%GIA | 1.35ct | Round | L | SI1 | Excellent
From $1,742
Compare at $2,321
HRD | 1.31ct | Heart | H | SI2 | Ideal
From $1,749
Compare at $1,781
IGI | 1.33ct | Pear | K | VS1 | Very Good
From $1,750
Compare at $1,770
Save 36.5%GIA | 1.31ct | Cushion | L | VS1 | Excellent
From $1,754
Compare at $2,763
IGI | 1.31ct | Heart | J | IF | Very Good
From $1,755
IGI | 1.36ct | Pear | K | VS2 | Very Good
From $1,755
Compare at $1,775
Save 36.5%GIA | 1.31ct | Round | L | SI2 | Very Good
From $1,795
Compare at $2,828
GIA | 1.35ct | Round | L | SI2 | Excellent
From $1,804
Compare at $2,004
IGI | 1.31ct | Oval | H | SI2 | Ideal
From $1,805
Compare at $1,836
Save 33.1%GIA | 1.31ct | Round | L | SI1 | Ideal
From $1,811
Compare at $2,706
Save 35%GIA | 1.31ct | Round | H | SI2 | Ideal
From $1,818
Compare at $2,796
Save 17.2%GIA | 1.33ct | Princess | I | SI2 | Excellent
From $1,826
Compare at $2,205
GIA | 1.32ct | Princess | J | SI1 | Excellent
From $1,829
Compare at $1,998
IGI | 1.31ct | Round | F | SI2 | Excellent
From $1,836
Compare at $1,852
IGI | 1.36ct | Round | J | SI1 | Ideal
From $1,840
Compare at $1,971
GIA | 1.32ct | Oval | L | SI2 | Ideal
From $1,848
Compare at $1,875
IGI | 1.31ct | Round | K | VS2 | Excellent
From $1,855
Save 38.6%GIA | 1.32ct | Round | L | SI1 | Excellent
From $1,862
Compare at $3,035
Save 20.9%GIA | 1.32ct | Oval | L | SI1 | Excellent
From $1,864
Compare at $2,358
GIA | 1.32ct | Cushion | H | SI2 | Excellent
From $1,870
Compare at $2,011
IGI | 1.31ct | Round | K | VS1 | Excellent
From $1,885
Save 34.8%GIA | 1.32ct | Princess | J | SI1 | Excellent
From $1,898
Compare at $2,912
Save 22.8%GIA | 1.31ct | Round | K | SI1 | Excellent
From $1,898
Compare at $2,460
Entry pricing in this category starts around $494.
What to Know When Shopping for 1.3 Carat Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $20,048 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 $5,620 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.
Frequently Asked Questions
We currently track 2,033 comparable stones in this segment. Prices start around $494 and go up to $20,542.
Based on the latest market data, the average asking price is about $6,148 with a median around $5,620.
The observed spread is roughly $20,048 across tracked listings, which is about 97.6% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $6,148. The median price is $5,620, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
We currently track this stone category across 10 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 $20,048 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.
1.3 Carat Round Natural Diamond Prices
1.3 Carat Oval Natural Diamond Prices
1.3 Carat Emerald Natural Diamond Prices
1.3 Carat Cushion Natural Diamond Prices
1.3 Carat Pear Natural Diamond Prices
1.3 Carat Princess Natural Diamond Prices
1.3 Carat Radiant Natural Diamond Prices
1.3 Carat Heart Natural Diamond Prices
1.3 Carat Asscher Natural Diamond Prices
1.3 Carat Marquise Natural Diamond Prices
Tracking Natural inventory for 1.3 carat all-shape diamonds.