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Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 7456939844

Certificate GIA 7456939844

Diamond specifications and retailer prices

From $3,352 SGD
$2,621 USD
As of November 1, 2026
Save $1,546 SGD (32%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,956 SGD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7456939844. Listed at 13 retailers as of November 1, 2026, with a 46% 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

1.51
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.5°
Pavilion angle37.97°
OriginNatural
Grading LabGIA
CertificateGIA 7456939844
Dimensions6.64 × 7.87 × 4.77 mm
L/W Ratio1.19
Top View
6.64 mm7.87 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7456939844
Side View
Table 62.0%Crown 46.5°Girdle: THN-THKPavilion 37.97°Culet: NoneDepth 60.6%

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: $7,956 SGD|Low: $3,352 SGD|High: $7,956 SGD|Avg: $4,883 SGD
NZ Jewellers
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
Retailer 18
Retailer 19
October 27, 2026
Retailer 17$3,352 SGD
Retailer 18$3,586 SGD
Retailer 19$3,693 SGD
Retailer 10$3,958 SGD
Retailer 14$4,137 SGD
Retailer 15$4,297 SGD
Retailer 11$4,434 SGD
Retailer 16$4,486 SGD
Retailer 12$4,573 SGD
Retailer 8$4,617 SGD
Retailer 4$4,745 SGD
Retailer 5$4,745 SGD
Retailer 2$4,820 SGD
Retailer 7$4,892 SGD
Retailer 3$4,898 SGD
Retailer 6$5,181 SGD
Retailer 9$6,342 SGD
Retailer 13$7,648 SGD
NZ Jewellers$7,956 SGD

19 data points across 19 retailers

13 retailers$3,352 SGD to $4,898 SGD

A
Cheapest Retailer
-
$3,352 SGD
$2,621 USD
Retailer 2
-
$3,586 SGD
$2,804 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$3,693 SGD
$2,888 USD
View
Retailer 4
-
$4,137 SGD
$3,235 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$4,297 SGD
$3,360 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$4,486 SGD
$3,508 USD
View
B+
Retailer 7
-
$4,573 SGD
£2,816 GBP
View
B+
Retailer 8
-
$4,745 SGD
$3,710 USD
View
B+
Retailer 9
-
$4,745 SGD
$3,710 USD
View
B+
Retailer 10
-
$4,820 SGD
$3,769 USD
View
B+
Retailer 11
-
$4,898 SGD
$3,830 USD
View
Retailer 12
-
$7,648 SGD
£4,709 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
5ff0a33f-bce3-4bc9-b74d-835c40274907 · Oct 24
$7,956 SGD
$6,221 USD
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from $3,352 SGDSave up to $1,546 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
1.51ct Heart
$3,352 SGD