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Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6541674412

Certificate GIA 6541674412

Diamond specifications and retailer prices

From $3,658 SGD
As of November 6, 2026
Save $4,333 SGD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,716 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 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 6541674412. Listed at 14 retailers as of November 4, 2026, with a 118% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle42.1°
OriginNatural
Grading LabGIA
CertificateGIA 6541674412
Dimensions6.88 × 8.04 × 4.65 mm
L/W Ratio1.17
Top View
6.88 mm8.04 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541674412
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 42.1°Culet: NoneDepth 57.9%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $4,606 SGD|Low: $3,609 SGD|High: $8,468 SGD|Avg: $5,313 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
November 6, 2026
Retailer 13$3,658 SGD
Retailer 2$4,422 SGD
Retailer 11$4,454 SGD
Retailer 10$4,588 SGD
Retailer 1$4,606 SGD
Retailer 7$4,625 SGD
Retailer 4$4,852 SGD
Retailer 6$4,959 SGD
Retailer 5$5,283 SGD
Retailer 3$5,434 SGD
Retailer 8$5,848 SGD
Retailer 12$7,663 SGD
Retailer 9$7,991 SGD

36 data points across 13 retailers

14 retailers$3,658 SGD to $7,991 SGD

A
Cheapest Retailer
-
$3,658 SGD
A
Retailer 2
-
$4,422 SGD
View
Final sale: no returns
B+
Retailer 3
-
$4,454 SGD
View
B+
Retailer 4
-
$4,588 SGD
View
B+
Retailer 5
-
$4,606 SGD
View
B+
Retailer 6
-
$4,625 SGD
View
B+
Retailer 7
-
$4,852 SGD
View
B+
Retailer 8
-
$4,959 SGD
View
Retailer 9
-
$5,283 SGD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
$5,434 SGD
View
B+
Retailer 11
-
$5,848 SGD
View
B
Retailer 12
-
$7,663 SGD
View
B
Retailer 13
-
$7,991 SGD
View
Most Expensive
NZ Jewellers
090fd14f-f327-42ad-af8c-26d56e63b63f · Sep 25
$8,716 SGD
$6,801 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from $3,658 SGDSave up to $4,333 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
$3,658 SGD