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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 $4,484 SGD
HK$27,400 HKD
As of November 2, 2026
Save $4,519 SGD (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,845 SGD 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 101% 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
Colour
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 2
Current: $4,484 SGD|Low: $4,418 SGD|High: $9,804 SGD|Avg: $5,954 SGD|-4.2%
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 2, 2026
Retailer 1$4,484 SGD
Retailer 14$4,497 SGD
Retailer 12$4,720 SGD
Retailer 10$4,794 SGD
Retailer 7$4,979 SGD
Retailer 16$5,043 SGD
Retailer 6$5,055 SGD
Retailer 4$5,056 SGD
Retailer 13$5,497 SGD
Retailer 3$5,537 SGD
Retailer 11$5,866 SGD
Retailer 8$6,110 SGD
Retailer 2$7,097 SGD
Retailer 9$7,645 SGD
Retailer 15$9,003 SGD
Retailer 5$9,391 SGD

26 data points across 16 retailers

18 retailers$4,484 SGD to $9,003 SGD

A
Cheapest Retailer
-
$4,484 SGD
HK$27,400 HKD
A
Retailer 2
-
$4,497 SGD
$3,518 USD
View
A
Retailer 3
-
$4,720 SGD
$3,692 USD
View
A
Retailer 4
-
$4,794 SGD
$3,750 USD
View
Final sale: no returns
A
Retailer 5
-
$4,979 SGD
$3,895 USD
View
A
Retailer 6
-
$5,043 SGD
€3,757 EUR
View
A
Retailer 7
-
$5,055 SGD
$3,954 USD
View
A
Retailer 8
-
$5,056 SGD
$3,955 USD
View
B+
Retailer 9
-
$5,497 SGD
$4,300 USD
View
B+
Retailer 10
-
$5,537 SGD
$4,331 USD
View
B+
Retailer 11
-
$5,866 SGD
£3,613 GBP
View
Retailer 12
-
$6,110 SGD
A$7,353 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
$6,521 SGD
A$7,848 AUD
View
B
Retailer 14
-
$7,097 SGD
ZAR 89,688 ZAR
View
B
Retailer 15
-
$7,645 SGD
$5,980 USD
View
B
Retailer 16
-
$9,003 SGD
£5,545 GBP
View
Retailer 17
-
$9,391 SGD
$7,346 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
40b694ec-f3d7-485e-9867-0a6742bb329e · Sep 25
$10,845 SGD
$8,483 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from $4,484 SGDSave up to $4,519 SGD

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
$4,484 SGD