1.5 Carat Heart Natural Diamond Prices Comparison
As of May 2026, 1.5 carat heart natural diamonds usually range from $506 to $18,767, with an average price of $6,815.In the last month, prices for these diamonds are up 0.1%.Compare 1,527 verified listings across 8 retailers tracked by CaratRadar.
1.5 Carat Heart Natural Diamond Market Overview
CaratRadar currently tracks 1,527 verified 1.5-carat heart natural diamonds listed across 8 online retailers. Prices in this segment range from $506 to $18,767, with an average asking price of $6,815 and a median of $6,303.
The price spread of $18,261 (97.3% 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.
1,527 diamonds tracked in this segment
Price range: $506 to $18,767
Average price: $6,815
Median price: $6,303
Available across 8 retailers
Savings potential: up to 97.3%
Price Range Overview
As of May 29, 2026Real market range for this carat, shape, and diamond type.
1,527
$506
$6,815
$6,303
$18,767
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 23%IGI | 1.5ct | Heart | K | SI1 | Very Good
From $1,685
Compare at $2,188
Save 23%IGI | 1.52ct | Heart | K | SI1 | Very Good
From $1,707
Compare at $2,216
Save 18.7%IGI | 1.51ct | Heart | K | SI1 | Ideal
From $1,792
Compare at $2,205
Save 17%IGI | 1.5ct | Heart | I | SI2 | Ideal
From $1,809
Compare at $2,180
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
GIA | 1.5ct | Heart | L | SI2 | Excellent
From $1,856
Compare at $1,915
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 10.2%IGI | 1.5ct | Heart | K | SI1 | Very Good
From $1,966
Compare at $2,190
Save 14.5%GIA | 1.53ct | Heart | L | SI2 | Excellent
From $2,045
Compare at $2,393
Save 20.3%GIA | 1.51ct | Heart | L | SI2 | Excellent
From $2,107
Compare at $2,645
IGI | 1.51ct | Heart | I | SI1 | Ideal
From $2,140
Compare at $2,303
IGI | 1.5ct | Heart | K | SI1 | Very Good
From $2,154
Compare at $2,385
IGI | 1.53ct | Heart | K | VS2 | Very Good
From $2,165
Compare at $2,344
Save 21.7%GIA | 1.51ct | Heart | L | SI2 | Excellent
From $2,168
Compare at $2,769
Save 12.4%IGI | 1.5ct | Heart | K | SI1 | Ideal
From $2,175
Compare at $2,483
Save 15.8%GIA | 1.51ct | Heart | L | SI2 | Excellent
From $2,180
Compare at $2,588
Save 17.9%IGI | 1.52ct | Heart | K | VVS2 | Very Good
From $2,191
Compare at $2,669
Save 12%IGI | 1.5ct | Heart | K | VS2 | Very Good
From $2,205
Compare at $2,505
Save 17.3%IGI | 1.51ct | Heart | I | SI2 | Ideal
From $2,216
Compare at $2,680
Save 14.5%GIA | 1.51ct | Heart | L | SI1 | Very Good
From $2,224
Compare at $2,601
IGI | 1.53ct | Heart | K | SI1 | Very Good
From $2,231
Compare at $2,235
Save 15.3%IGI | 1.51ct | Heart | K | VS1 | Very Good
From $2,240
Compare at $2,644
IGI | 1.55ct | Heart | K | SI1 | Very Good
From $2,247
Compare at $2,300
Save 12.4%IGI | 1.5ct | Heart | K | VS2 | Very Good
From $2,285
Compare at $2,609
Save 11.6%IGI | 1.54ct | Heart | K | VS1 | Ideal
From $2,285
Compare at $2,584
Save 10.2%IGI | 1.53ct | Heart | K | VVS2 | Very Good
From $2,313
Compare at $2,575
Save 20.3%GIA | 1.5ct | Heart | L | SI2 | Excellent
From $2,373
Compare at $2,978
Save 13.2%IGI | 1.5ct | Heart | K | VS1 | Very Good
From $2,375
Compare at $2,735
IGI | 1.5ct | Heart | K | SI1 | Very Good
From $2,380
Compare at $2,385
Save 20.8%IGI | 1.51ct | Heart | K | VS2 | Very Good
From $2,415
Compare at $3,050
Save 10.8%GIA | 1.51ct | Heart | K | SI2 | Excellent
From $2,432
Compare at $2,727
Save 19.9%IGI | 1.52ct | Heart | K | VS2 | Very Good
From $2,435
Compare at $3,040
Save 19.9%IGI | 1.52ct | Heart | K | VS2 | Very Good
From $2,435
Compare at $3,040
Save 12.1%IGI | 1.52ct | Heart | J | SI1 | Ideal
From $2,450
Compare at $2,787
Save 12.3%IGI | 1.53ct | Heart | K | VS2 | Very Good
From $2,465
Compare at $2,811
Save 17.2%IGI | 1.5ct | Heart | H | SI2 | Ideal
From $2,466
Compare at $2,980
Save 20.3%GIA | 1.51ct | Heart | L | SI2 | Excellent
From $2,471
Compare at $3,100
IGI | 1.51ct | Heart | K | VS1 | Very Good
From $2,475
Compare at $2,697
IGI | 1.51ct | Heart | K | VS1 | Very Good
From $2,475
Compare at $2,697
Save 12.5%GIA | 1.5ct | Heart | L | VS2 | Excellent
From $2,494
Compare at $2,852
Save 11%IGI | 1.5ct | Heart | K | VVS1 | Very Good
From $2,500
Compare at $2,810
Save 12.5%IGI | 1.51ct | Heart | J | VS2 | Very Good
From $2,510
Compare at $2,868
Save 12.4%IGI | 1.5ct | Heart | J | SI1 | Very Good
From $2,520
Compare at $2,877
Save 25.1%GIA | 1.51ct | Heart | J | SI2 | Excellent
From $2,540
Compare at $3,390
Save 25.1%IGI | 1.5ct | Heart | H | SI2 | Ideal
From $2,548
Compare at $3,400
Save 39.8%GIA | 1.51ct | Heart | K | SI2 | Excellent
From $2,549
Compare at $4,236
IGI | 1.5ct | Heart | K | SI1 | Very Good
From $2,550
Compare at $2,580
Save 25%IGI | 1.51ct | Heart | G | SI2 | Ideal
From $2,557
Compare at $3,410
Entry pricing in this category 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 $18,261 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 $6,303 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 1,527 comparable stones in this segment. Prices start around $506 and go up to $18,767.
Based on the latest market data, the average asking price is about $6,815 with a median around $6,303.
The observed spread is roughly $18,261 across tracked listings, which is about 97.3% 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 $6,815. The median price is $6,303, 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 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 $18,261 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 1.5 carat Heart diamonds.