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Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 1537168777

Certificate GIA 1537168777

Diamond specifications and retailer prices

From $4,265 SGD
As of November 6, 2026
Save $4,696 SGD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,802 SGD at NZ Jewellers · As of October 18, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1537168777. Listed at 19 retailers as of November 1, 2026, with a 110% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1537168777
Dimensions8.24 × 7.23 × 4.54 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Knot, Cloud, Needle
Top View
8.24 mm7.23 mm1.50 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1537168777
Side View
Table 63.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 55.0%

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 6
Current: $4,486 SGD|Low: $4,215 SGD|High: $9,098 SGD|Avg: $5,771 SGD|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$4,265 SGD
Retailer 1$4,486 SGD
Retailer 7$5,037 SGD
Retailer 11$5,161 SGD
Retailer 4$5,380 SGD
Retailer 5$5,665 SGD
Retailer 8$5,767 SGD
Retailer 10$5,783 SGD
Retailer 3$6,036 SGD
Retailer 6$6,823 SGD
Retailer 2$8,961 SGD

34 data points across 11 retailers

19 retailers$4,265 SGD to $8,961 SGD

A
Cheapest Retailer
-
$4,265 SGD
A
Retailer 2
-
$4,486 SGD
View
B+
Retailer 3
-
$5,037 SGD
View
B+
Retailer 4
-
$5,161 SGD
View
Final sale: no returns
B+
Retailer 5
-
$5,208 SGD
View
B+
Retailer 6
-
$5,210 SGD
View
B+
Retailer 7
-
$5,380 SGD
View
Retailer 8
-
$5,626 SGD
View
Price last confirmed 21 days ago
Retailer 9
-
$5,626 SGD
View
Price last confirmed 21 days ago
Retailer 10
-
$5,626 SGD
View
Price last confirmed 19 days ago
B+
Retailer 11
-
$5,665 SGD
View
B+
Retailer 12
-
$5,767 SGD
View
B+
Retailer 13
-
$5,783 SGD
View
B
Retailer 14
-
$5,871 SGD
View
Retailer 15
-
$6,036 SGD
View
Price last confirmed 28 days ago
Retailer 16
-
$6,491 SGD
View
Price last confirmed 18 days ago
B
Retailer 17
-
$6,823 SGD
View
B
Retailer 18
-
$8,961 SGD
View
Most Expensive
NZ Jewellers
a130a7da-e239-47a1-afaa-8a84ba7a6ba9 · Oct 18
$9,802 SGD
$7,648 USD
View
Price last confirmed 19 days ago
18 more retailers have this diamond
Prices start from $4,265 SGDSave up to $4,696 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
$4,265 SGD