1.5 Carat Natural Diamond Prices Comparison
As of July 2026, the average price of a 1.5 carat natural diamond is $8,033.1.5 carat diamonds can cost anywhere from $457 to $26,451 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are down 0.5%.Compare 27,896 verified listings across 11 retailers in the tables below.
1.5 Carat Natural Diamond Market Overview
CaratRadar currently tracks 27,896 verified 1.5-carat natural diamonds listed across 11 online retailers. Prices in this segment range from $457 to $26,451, with an average asking price of $8,033 and a median of $7,526.
The price spread of $25,994 (98.3% 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.
27,896 diamonds tracked in this segment
Price range: $457 to $26,451
Average price: $8,033
Median price: $7,526
Available across 11 retailers
Savings potential: up to 98.3%
Price Range Overview
As of Jul 13, 2026Real market range for this carat, shape, and diamond type.
27,896
$457
$8,033
$7,526
$26,451
Price History
Price Comparison Matrix
1.5 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.
Save 12.3%IGI | 1.6ct | Pear | L | I1 | Ideal
From $739
Compare at $843
Save 12.2%IGI | 1.51ct | Pear | K | I1 | Ideal
From $826
Compare at $941
HRD | 1.51ct | Pear | I | I1 | Ideal
From $937
Compare at $1,011
IGI | 1.51ct | Round | K | SI2 | Ideal
From $939
Compare at $1,014
IGI | 1.5ct | Oval | I | I1 | Ideal
From $959
Compare at $1,036
IGI | 1.51ct | Oval | J | I1 | Ideal
From $1,077
Compare at $1,161
IGI | 1.5ct | Oval | I | I1 | Ideal
From $1,093
Compare at $1,178
IGI | 1.51ct | Pear | H | I1 | Very Good
From $1,247
Compare at $1,303
IGI | 1.51ct | Pear | I | SI2 | Very Good
From $1,269
Compare at $1,323
HRD | 1.51ct | Pear | H | I1 | Ideal
From $1,298
Compare at $1,355
IGI | 1.51ct | Heart | J | SI2 | Very Good
From $1,307
Compare at $1,365
IGI | 1.58ct | Pear | G | I1 | Ideal
From $1,430
Compare at $1,492
HRD | 1.51ct | Oval | E | I1 | Ideal
From $1,444
Compare at $1,508
HRD | 1.5ct | Radiant | I | SI2 | Ideal
From $1,455
Compare at $1,518
GIA | 1.51ct | Pear | L | SI2 | Ideal
From $1,474
Compare at $1,499
IGI | 1.5ct | Oval | I | SI2 | Ideal
From $1,478
Compare at $1,503
IGI | 1.5ct | Round | L | SI2 | Excellent
From $1,479
Compare at $1,504
IGI | 1.5ct | Oval | K | I1 | Very Good
From $1,487
Compare at $1,526
Save 26.4%GIA | 1.5ct | Cushion | L | SI1 | Excellent
From $1,516
Compare at $2,059
IGI | 1.51ct | Pear | G | I1 | Ideal
From $1,517
Compare at $1,557
Save 34.4%GIA | 1.5ct | Cushion | L | SI1 | Ideal
From $1,519
Compare at $2,316
IGI | 1.6ct | Round | H | I1 | Ideal
From $1,534
Compare at $1,575
Save 17.2%IGI | 1.5ct | Heart | I | SI2 | Ideal
From $1,540
Compare at $1,860
IGI | 1.51ct | Round | L | SI2 | Very Good
From $1,542
Compare at $1,583
Save 32.5%GIA | 1.51ct | Oval | L | SI2 | Ideal
From $1,548
Compare at $2,294
IGI | 1.5ct | Heart | G | SI2 | Ideal
From $1,549
IGI | 1.5ct | Emerald | K | SI1 | Very Good
From $1,557
Compare at $1,560
IGI | 1.5ct | Oval | K | SI2 | Very Good
From $1,558
Save 35%GIA | 1.5ct | Round | K | I1 | Very Good
From $1,565
Compare at $2,408
IGI | 1.51ct | Pear | E | SI2 | Ideal
From $1,575
Save 28.4%IGI | 1.51ct | Pear | J | SI2 | Ideal
From $1,582
Compare at $2,210
Save 34.4%GIA | 1.51ct | Cushion | L | SI1 | Ideal
From $1,634
Compare at $2,492
Save 14%IGI | 1.5ct | Cushion | I | SI2 | Ideal
From $1,639
Compare at $1,905
HRD | 1.51ct | Heart | H | SI2 | Ideal
From $1,664
Compare at $1,708
Save 34.4%GIA | 1.5ct | Emerald | K | SI2 | Excellent
From $1,666
Compare at $2,540
Save 34.4%GIA | 1.51ct | Cushion | K | SI1 | Excellent
From $1,668
Compare at $2,542
IGI | 1.51ct | Round | L | SI2 | Ideal
From $1,675
IGI | 1.5ct | Pear | K | SI2 | Very Good
From $1,678
Compare at $1,721
Save 13.9%IGI | 1.5ct | Oval | L | SI1 | Ideal
From $1,679
Compare at $1,950
Save 13.9%IGI | 1.5ct | Round | K | SI2 | Ideal
From $1,689
Compare at $1,961
HRD | 1.51ct | Heart | I | SI2 | Ideal
From $1,691
Compare at $1,692
IGI | 1.55ct | Heart | K | SI1 | Very Good
From $1,692
Compare at $1,695
Save 15.6%IGI | 1.5ct | Round | L | SI2 | Excellent
From $1,697
Compare at $2,011
Save 31.2%IGI | 1.5ct | Oval | I | SI2 | Very Good
From $1,712
Compare at $2,490
Save 34.4%GIA | 1.5ct | Emerald | K | SI2 | Ideal
From $1,714
Compare at $2,612
IGI | 1.5ct | Pear | K | SI1 | Very Good
From $1,718
Compare at $1,720
IGI | 1.5ct | Round | L | SI2 | Ideal
From $1,718
Compare at $1,735
Save 17%IGI | 1.52ct | Oval | L | SI2 | Ideal
From $1,722
Compare at $2,075
HRD | 1.5ct | Pear | F | I1 | Ideal
From $1,727
Compare at $1,759
IGI | 1.51ct | Round | L | SI2 | Ideal
From $1,728
Entry pricing in this category starts around $457.
What to Know When Shopping for 1.5 Carat Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $25,994 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 $7,526 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 27,896 comparable stones in this segment. Prices start around $457 and go up to $26,451.
Based on the latest market data, the average asking price is about $8,033 with a median around $7,526.
The observed spread is roughly $25,994 across tracked listings, which is about 98.3% 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 $8,033. The median price is $7,526, 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 11 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 $25,994 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.
1.5 Carat Round Natural Diamond Prices
1.5 Carat Oval Natural Diamond Prices
1.5 Carat Cushion Natural Diamond Prices
1.5 Carat Emerald Natural Diamond Prices
1.5 Carat Pear Natural Diamond Prices
1.5 Carat Radiant Natural Diamond Prices
1.5 Carat Princess Natural Diamond Prices
1.5 Carat Heart Natural Diamond Prices
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