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Heart|Natural|GIA

1.02ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6542353938

Certificate GIA 6542353938

Diamond specifications and retailer prices

From $1,601 SGD
As of November 6, 2026
Save $1,978 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,525 SGD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.02ct natural heart diamond

This 1.02ct natural heart sits in the classic one-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 6542353938. Listed at 19 retailers as of November 4, 2026, with a 124% 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

1.02
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542353938
Dimensions6.05 × 7.01 × 4.09 mm
L/W Ratio1.16
Top View
6.05 mm7.01 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542353938
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 38.6°Culet: NoneDepth 58.4%

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: $1,601 SGD|Low: $1,574 SGD|High: $3,801 SGD|Avg: $2,353 SGD|-6.6%
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
Retailer 17
November 6, 2026
Retailer 1$1,601 SGD
Retailer 6$1,607 SGD
Retailer 15$1,699 SGD
Retailer 2$1,774 SGD
Retailer 17$1,867 SGD
Retailer 12$1,967 SGD
Retailer 8$1,998 SGD
Retailer 5$2,012 SGD
Retailer 10$2,229 SGD
Retailer 11$2,256 SGD
Retailer 13$2,354 SGD
Retailer 14$2,482 SGD
Retailer 4$2,509 SGD
Retailer 9$2,804 SGD
Retailer 3$3,231 SGD
Retailer 7$3,448 SGD
Retailer 16$3,578 SGD

28 data points across 17 retailers

19 retailers$1,601 SGD to $3,578 SGD

A
Cheapest Retailer
-
$1,601 SGD
A
Retailer 2
-
$1,607 SGD
View
A
Retailer 3
-
$1,699 SGD
View
Final sale: no returns
A
Retailer 4
-
$1,774 SGD
View
A
Retailer 5
-
$1,867 SGD
View
A
Retailer 6
-
$1,967 SGD
View
B+
Retailer 7
-
$1,998 SGD
View
A
Retailer 8
-
$2,012 SGD
View
B+
Retailer 9
-
$2,229 SGD
View
B+
Retailer 10
-
$2,256 SGD
View
B+
Retailer 11
-
$2,354 SGD
View
B+
Retailer 12
-
$2,472 SGD
View
B+
Retailer 13
-
$2,482 SGD
View
B+
Retailer 14
-
$2,509 SGD
View
Retailer 15
-
$2,804 SGD
View
Price last confirmed 33 days ago
B
Retailer 16
-
$3,231 SGD
View
B
Retailer 17
-
$3,448 SGD
View
B
Retailer 18
-
$3,578 SGD
View
Most Expensive
NZ Jewellers
13fd9529-96c7-4e7f-97c5-b654a8f19be5 · Sep 19
$5,525 SGD
$4,311 USD
View
Price last confirmed 48 days ago
18 more retailers have this diamond
Prices start from $1,601 SGDSave up to $1,978 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
1.02ct Heart
$1,601 SGD