1.5 Carat Natural Diamond Prices Comparison
As of May 2026, the average price of a 1.5 carat natural diamond is $8,151.1.5 carat diamonds can cost anywhere from $457 to $27,073 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are up 0.5%.Compare 30,679 verified listings across 11 retailers in the tables below.
1.5 Carat Natural Diamond Market Overview
CaratRadar currently tracks 30,679 verified 1.5-carat natural diamonds listed across 11 online retailers. Prices in this segment range from $457 to $27,073, with an average asking price of $8,151 and a median of $7,641.
The price spread of $26,616 (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.
30,679 diamonds tracked in this segment
Price range: $457 to $27,073
Average price: $8,151
Median price: $7,641
Available across 11 retailers
Savings potential: up to 98.3%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
30,679
$457
$8,151
$7,641
$27,073
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 32.5%GIA | 1.5ct | Cushion | L | SI1 | Ideal
From $1,606
Compare at $2,380
Save 33.9%GIA | 1.51ct | Pear | L | SI2 | Ideal
From $1,614
Compare at $2,440
Save 33.1%GIA | 1.5ct | Cushion | K | SI2 | Very Good
From $1,641
Compare at $2,454
Save 22.1%IGI | 1.5ct | Emerald | K | SI1 | Very Good
From $1,655
Compare at $2,126
Save 22.2%IGI | 1.51ct | Emerald | K | SI1 | Very Good
From $1,665
Compare at $2,140
Save 20.3%IGI | 1.5ct | Emerald | K | SI1 | Very Good
From $1,680
Compare at $2,109
Save 23%IGI | 1.5ct | Heart | K | SI1 | Very Good
From $1,685
Compare at $2,188
Save 23.1%IGI | 1.5ct | Round | K | SI1 | Very Good
From $1,685
Compare at $2,190
Save 23%IGI | 1.52ct | Heart | K | SI1 | Very Good
From $1,707
Compare at $2,216
Save 32.5%GIA | 1.5ct | Cushion | K | SI1 | Good
From $1,725
Compare at $2,554
Save 20.9%IGI | 1.5ct | Emerald | K | SI1 | Very Good
From $1,730
Compare at $2,188
Save 21%IGI | 1.51ct | Emerald | K | SI1 | Ideal
From $1,740
Compare at $2,202
Save 23.4%IGI | 1.51ct | Round | K | SI1 | Excellent
From $1,760
Compare at $2,298
Save 35.3%GIA | 1.5ct | Cushion | L | SI2 | Excellent
From $1,762
Compare at $2,722
Save 33.2%GIA | 1.51ct | Oval | L | SI2 | Ideal
From $1,765
Compare at $2,642
Save 35.3%GIA | 1.51ct | Cushion | L | SI2 | Excellent
From $1,774
Compare at $2,740
Save 33.1%GIA | 1.51ct | Cushion | L | SI1 | Ideal
From $1,781
Compare at $2,664
Save 18.7%IGI | 1.51ct | Heart | K | SI1 | Ideal
From $1,792
Compare at $2,205
Save 35.3%GIA | 1.53ct | Cushion | L | SI2 | Excellent
From $1,797
Compare at $2,776
Save 17%IGI | 1.5ct | Heart | I | SI2 | Ideal
From $1,809
Compare at $2,180
Save 25.2%IGI | 1.51ct | Asscher | K | VS1 | Very Good
From $1,815
Compare at $2,425
Save 18.8%IGI | 1.53ct | Heart | K | SI1 | Very Good
From $1,815
Compare at $2,235
Save 18.8%IGI | 1.53ct | Heart | K | SI1 | Very Good
From $1,815
Compare at $2,235
Save 21.5%IGI | 1.5ct | Round | K | SI1 | Very Good
From $1,820
Compare at $2,320
Save 19.9%IGI | 1.5ct | Pear | K | SI1 | Very Good
From $1,825
Compare at $2,278
Save 21.7%IGI | 1.5ct | Round | K | SI1 | Very Good
From $1,855
Compare at $2,370
GIA | 1.5ct | Heart | L | SI2 | Excellent
From $1,856
Compare at $1,915
Save 32.5%GIA | 1.51ct | Pear | L | SI2 | Excellent
From $1,858
Compare at $2,752
Save 25.4%IGI | 1.5ct | Princess | K | VVS1 | Very Good
From $1,875
Compare at $2,513
Save 35.2%GIA | 1.5ct | Cushion | L | SI1 | Very Good
From $1,879
Compare at $2,902
Save 35.2%GIA | 1.5ct | Cushion | L | SI1 | Excellent
From $1,879
Compare at $2,902
Save 35.2%GIA | 1.5ct | Cushion | L | SI1 | Very Good
From $1,879
Compare at $2,902
Save 33.8%GIA | 1.51ct | Radiant | L | VS2 | Excellent
From $1,890
Compare at $2,856
Save 20.4%IGI | 1.5ct | Radiant | K | VS1 | Very Good
From $1,890
Compare at $2,374
Save 35.2%GIA | 1.51ct | Cushion | L | SI1 | Excellent
From $1,892
Compare at $2,921
Save 35.2%GIA | 1.51ct | Cushion | L | SI1 | Excellent
From $1,892
Compare at $2,921
Save 35.2%GIA | 1.51ct | Cushion | L | SI1 | Very Good
From $1,892
Compare at $2,921
Save 23.1%IGI | 1.5ct | Round | K | SI1 | Ideal
From $1,895
Compare at $2,465
Save 21.7%IGI | 1.5ct | Round | K | SI1 | Ideal
From $1,895
Compare at $2,420
Save 32.5%GIA | 1.5ct | Emerald | K | SI2 | Excellent
From $1,899
Compare at $2,814
Save 21.7%IGI | 1.53ct | Pear | K | SI1 | Very Good
From $1,900
Compare at $2,427
Save 24%IGI | 1.51ct | Emerald | K | VVS2 | Very Good
From $1,900
Compare at $2,501
Save 20.5%IGI | 1.51ct | Emerald | K | VS1 | Very Good
From $1,900
Compare at $2,390
Save 25.2%IGI | 1.52ct | Emerald | K | VVS2 | Very Good
From $1,910
Compare at $2,554
Save 21.6%IGI | 1.51ct | Round | K | SI1 | Excellent
From $1,910
Compare at $2,436
Save 18%IGI | 1.53ct | Heart | K | SI1 | Very Good
From $1,912
Compare at $2,331
Save 18%IGI | 1.53ct | Heart | K | SI1 | Ideal
From $1,912
Compare at $2,331
Save 20.3%IGI | 1.53ct | Emerald | K | VS2 | Very Good
From $1,920
Compare at $2,410
Save 20.3%IGI | 1.53ct | Emerald | K | VS2 | Ideal
From $1,920
Compare at $2,410
Save 23.3%GIA | 1.5ct | Round | L | SI2 | Ideal
From $1,921
Compare at $2,504
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 $26,616 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 $7,641 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 30,679 comparable stones in this segment. Prices start around $457 and go up to $27,073.
Based on the latest market data, the average asking price is about $8,151 with a median around $7,641.
The observed spread is roughly $26,616 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 $8,151. The median price is $7,641, 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 $26,616 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 Emerald Natural Diamond Prices
1.5 Carat Cushion Natural Diamond Prices
1.5 Carat Pear Natural Diamond Prices
1.5 Carat Princess Natural Diamond Prices
1.5 Carat Radiant Natural Diamond Prices
1.5 Carat Heart Natural Diamond Prices
1.5 Carat Asscher Natural Diamond Prices
1.5 Carat Marquise Natural Diamond Prices
Tracking Natural inventory for 1.5 carat all-shape diamonds.