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Heart|Natural|GIA

1.64ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 2528975077

Certificate GIA 2528975077

Diamond specifications and retailer prices

From $4,848 SGD
As of November 4, 2026
Save $5,044 SGD (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,893 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.64ct natural heart diamond

This 1.64ct 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2528975077. Listed at 19 retailers as of November 4, 2026, with prices from $4,848 to $9,893, a $5,044 spread on the same certified stone. NZ Jewellers lists it at $9,893. 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

1.64
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2528975077
Dimensions7.76 × 7.26 × 4.48 mm
L/W Ratio1.07
Top View
7.76 mm7.26 mm1.64 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2528975077
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,434 SGD|Low: $5,242 SGD|High: $9,153 SGD|Avg: $6,379 SGD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$5,242 SGD
Retailer 1$5,434 SGD
Retailer 3$5,752 SGD
Retailer 7$6,056 SGD
Retailer 2$6,389 SGD
Retailer 4$6,928 SGD
Retailer 5$9,020 SGD

36 data points across 7 retailers

19 retailers$4,848 SGD to $9,893 SGD

B+
Cheapest Retailer
-
$4,848 SGD
B+
Retailer 2
-
$4,997 SGD
View
B+
Retailer 3
-
$5,078 SGD
View
B+
Retailer 4
-
$5,242 SGD
View
Final sale: no returns
B+
Retailer 5
-
$5,351 SGD
View
B+
Retailer 6
-
$5,383 SGD
View
B+
Retailer 7
-
$5,434 SGD
View
B+
Retailer 8
-
$5,631 SGD
View
B+
Retailer 9
-
$5,679 SGD
View
B+
Retailer 10
-
$5,679 SGD
View
Retailer 11
-
$5,679 SGD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$5,752 SGD
View
B
Retailer 13
-
$5,968 SGD
View
Retailer 14
-
$6,056 SGD
View
Price last confirmed 29 days ago
B
Retailer 15
-
$6,389 SGD
View
B
Retailer 16
-
$6,552 SGD
View
B
Retailer 17
-
$6,928 SGD
View
B
Retailer 18
-
$9,020 SGD
View
Most Expensive
C
NZ Jewellers
1c568664-3667-46cb-8b10-3955c74db087 · Nov 5
$9,893 SGD
$7,719 USD
View
18 more retailers have this diamond
Prices start from $4,848 SGDSave up to $5,044 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.

B+
1.64ct Heart
$4,848 SGD