1.5 Carat Heart Natural Diamond Prices Comparison
As of October 2026, 1.5 carat heart natural diamonds in the 1.50–1.74 carat benchmark range usually range from $506 to $39,313, with an average price of $6,552.In the last month, prices for these diamonds are down 1.7%.Compare 2,238 verified listings across 12 retailers tracked by CaratRadar.
1.5 Carat Heart Natural Diamond Market Overview
CaratRadar currently tracks 2,238 verified 1.5-carat heart natural diamonds in the 1.50–1.74 carat benchmark range, listed across 12 online retailers. Prices in this segment range from $506 to $39,313, with an average asking price of $6,552 and a median of $6,040.
The price spread of $38,807 (98.7% 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 use the same benchmark range throughout the page and 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.
2,238 diamonds tracked in the 1.50–1.74 carat benchmark
Price range: $506 to $39,313
Average price: $6,552
Median price: $6,040
Available across 12 retailers
Savings potential: up to 98.7%
Price Range Overview
As of Oct 14, 2026Real market range for this carat, shape, and diamond type.
2,238
$506
$6,552
$6,040
$39,313
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 18.7%IGI | 1.51ct | Heart | D | I1 | Ideal
From $1,344
Compare at $1,653
Save 13%IGI | 1.55ct | Heart | L | I1 | Ideal
From $1,581
Compare at $1,817
IGI | 1.5ct | Heart | K | SI2 | Very Good
From $1,586
Compare at $1,592
Save 21%GIA | 1.5ct | Heart | M | SI2 | Ideal
From $1,679
Compare at $2,126
Save 21%GIA | 1.51ct | Heart | L | SI2 | Excellent
From $1,711
Compare at $2,166
Save 21%IGI | 1.55ct | Heart | K | SI1 | Very Good
From $1,733
Compare at $2,194
Save 13.9%IGI | 1.51ct | Heart | L | SI2 | Ideal
From $1,742
Compare at $2,024
Save 19.9%HRD | 1.52ct | Heart | J | SI2 | Good
From $1,753
Compare at $2,189
Save 27.8%GIA | 1.51ct | Heart | K | SI2 | Excellent
From $1,759
Compare at $2,437
Save 21.9%IGI | 1.53ct | Heart | J | SI2 | Very Good
From $1,772
Compare at $2,270
Save 21.7%IGI | 1.51ct | Heart | K | SI1 | Very Good
From $1,795
Compare at $2,292
IGI | 1.51ct | Heart | J | SI2 | Ideal
From $1,798
Compare at $1,813
Save 21.7%IGI | 1.51ct | Heart | K | VS2 | Very Good
From $1,801
Compare at $2,300
IGI | 1.5ct | Heart | H | SI2 | Ideal
From $1,818
Compare at $1,833
Save 14%IGI | 1.52ct | Heart | L | VS1 | Ideal
From $1,819
Compare at $2,114
Save 37.1%IGI | 1.5ct | Heart | K | SI1 | Very Good
From $1,880
Compare at $2,991
Save 11.8%GIA | 1.57ct | Heart | L | SI2 | Excellent
From $1,885
Compare at $2,137
Save 11.8%GIA | 1.52ct | Heart | L | SI2 | Excellent
From $1,888
Compare at $2,141
Save 20.3%GIA | 1.51ct | Heart | L | SI2 | Excellent
From $1,900
Compare at $2,385
Save 20.3%GIA | 1.51ct | Heart | L | VS2 | Good
From $1,919
Compare at $2,408
Save 21.7%IGI | 1.5ct | Heart | K | SI2 | Ideal
From $1,921
Compare at $2,453
Save 11.8%GIA | 1.51ct | Heart | L | SI2 | Excellent
From $1,923
Compare at $2,180
IGI | 1.51ct | Heart | H | SI2 | Ideal
From $1,924
Compare at $1,941
Save 13.3%IGI | 1.51ct | Heart | H | SI2 | Ideal
From $1,977
Compare at $2,280
IGI | 1.51ct | Heart | E | SI2 | Ideal
From $1,985
Compare at $2,002
Save 25.2%GIA | 1.51ct | Heart | L | SI1 | Ideal
From $2,007
Compare at $2,683
Save 11.5%IGI | 1.5ct | Heart | K | SI1 | Very Good
From $2,015
Compare at $2,277
Save 21.7%IGI | 1.5ct | Heart | K | SI1 | Very Good
From $2,022
Compare at $2,584
HRD | 1.7ct | Heart | I | SI2 | Ideal
From $2,036
Compare at $2,053
Save 14.8%GIA | 1.51ct | Heart | K | I1 | Ideal
From $2,044
Compare at $2,398
IGI | 1.5ct | Heart | H | SI2 | Ideal
From $2,061
Compare at $2,080
Save 14.1%IGI | 1.51ct | Heart | K | SI2 | Ideal
From $2,065
Compare at $2,405
Save 36.2%GIA | 1.5ct | Heart | K | SI2 | Excellent
From $2,073
Compare at $3,248
Save 21.7%IGI | 1.53ct | Heart | K | VS2 | Very Good
From $2,073
Compare at $2,649
Save 21.7%IGI | 1.52ct | Heart | K | SI1 | Very Good
From $2,081
Compare at $2,659
Save 14.1%IGI | 1.5ct | Heart | J | SI2 | Ideal
From $2,094
Compare at $2,439
IGI | 1.51ct | Heart | G | SI2 | Ideal
From $2,108
Compare at $2,126
Save 14.2%IGI | 1.54ct | Heart | L | VS2 | Ideal
From $2,153
Compare at $2,508
IGI | 1.51ct | Heart | G | SI2 | Ideal
From $2,154
Compare at $2,173
Save 20.1%IGI | 1.55ct | Heart | K | VS2 | Ideal
From $2,163
Compare at $2,708
Save 14.8%GIA | 1.5ct | Heart | J | I1 | Ideal
From $2,173
Compare at $2,551
IGI | 1.51ct | Heart | H | SI2 | Ideal
From $2,181
Compare at $2,199
Save 18.7%GIA | 1.56ct | Heart | J | SI2 | Excellent
From $2,182
Compare at $2,682
Save 16.2%HRD | 1.51ct | Heart | G | SI2 | Ideal
From $2,195
Compare at $2,620
Save 23.6%GIA | 1.51ct | Heart | K | SI2 | Excellent
From $2,196
Compare at $2,875
Save 36.2%GIA | 1.51ct | Heart | K | SI1 | Ideal
From $2,198
Compare at $3,445
IGI | 1.52ct | Heart | I | SI2 | Ideal
From $2,198
Compare at $2,330
Save 21.7%GIA | 1.51ct | Heart | L | SI1 | Very Good
From $2,203
Compare at $2,814
Save 16.4%IGI | 1.51ct | Heart | G | SI2 | Ideal
From $2,231
Compare at $2,670
Save 21.7%GIA | 1.5ct | Heart | M | SI1 | Ideal
From $2,238
Compare at $2,858
Entry pricing in this benchmark range starts around $506.
What to Know When Shopping for 1.5 Carat Heart Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $38,807 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 $6,040 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.
- Heart-shaped diamonds require excellent symmetry to look balanced. Aim for carat weights above 0.5 where the shape is clearly visible.
Frequently Asked Questions
We currently track 2,238 comparable stones in the 1.50–1.74 carat benchmark range. Prices start around $506 and go up to $39,313.
Based on the latest market data, the average asking price is about $6,552 with a median around $6,040.
The observed spread is roughly $38,807 across tracked listings, which is about 98.7% from highest to lowest offer in the 1.50–1.74 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $6,552. The median price is $6,040, 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 12 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 $38,807 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.
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Tracking Natural inventory for the 1.50–1.74 carat Heart diamond benchmark.