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Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 7551128182

Certificate GIA 7551128182

Diamond specifications and retailer prices

From $3,456 USD
HK$27,000 HKD
As of November 1, 2026
Save $3,586 USD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,483 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7551128182. Listed at 18 retailers as of November 1, 2026, with a 104% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551128182
Dimensions7.91 × 6.67 × 4.72 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
7.91 mm6.67 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551128182
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,692 USD|Low: $3,456 USD|High: $7,669 USD|Avg: $4,723 USD|-6.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 11$3,456 USD
Retailer 10$3,518 USD
Retailer 1$3,692 USD
Retailer 16$3,697 USD
Retailer 7$3,895 USD
Retailer 14$3,945 USD
Retailer 6$3,954 USD
Retailer 4$3,955 USD
Retailer 9$4,300 USD
Retailer 3$4,331 USD
Retailer 15$4,523 USD
Retailer 8$4,780 USD
Retailer 2$5,552 USD
Retailer 12$5,900 USD
Retailer 13$7,042 USD
Retailer 5$7,346 USD

25 data points across 16 retailers

18 retailers$3,456 USD to $7,042 USD

A
Cheapest Retailer
-
$3,456 USD
HK$27,000 HKD
A
Retailer 2
-
$3,518 USD
View
A
Retailer 3
-
$3,692 USD
View
A
Retailer 4
-
$3,697 USD
View
Final sale: no returns
A
Retailer 5
-
$3,895 USD
View
A
Retailer 6
-
$3,945 USD
€3,757 EUR
View
A
Retailer 7
-
$3,954 USD
View
A
Retailer 8
-
$3,955 USD
View
B+
Retailer 9
-
$4,300 USD
View
B+
Retailer 10
-
$4,331 USD
View
B+
Retailer 11
-
$4,523 USD
£3,562 GBP
View
Retailer 12
-
$4,780 USD
A$7,353 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
$5,101 USD
A$7,848 AUD
View
B
Retailer 14
-
$5,552 USD
ZAR 89,688 ZAR
View
B
Retailer 15
-
$5,900 USD
View
B
Retailer 16
-
$7,042 USD
£5,545 GBP
View
Retailer 17
-
$7,346 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
40b694ec-f3d7-485e-9867-0a6742bb329e · Sep 25
$8,483 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from $3,456 USDSave up to $3,586 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.50ct Heart
$3,456 USD