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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 $6,824 NZD
As of November 4, 2026
Save $7,100 NZD (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $13,924 NZD 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 $6,824 to $13,924, a $7,100 spread on the same certified stone. NZ Jewellers lists it at $13,924. 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: $7,649 NZD|Low: $7,378 NZD|High: $12,883 NZD|Avg: $8,978 NZD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$7,378 NZD
Retailer 1$7,649 NZD
Retailer 3$8,096 NZD
Retailer 7$8,523 NZD
Retailer 2$8,992 NZD
Retailer 4$9,752 NZD
Retailer 5$12,696 NZD

36 data points across 7 retailers

19 retailers$6,824 NZD to $13,924 NZD

B+
Cheapest Retailer
-
$6,824 NZD
B+
Retailer 2
-
$7,033 NZD
View
B+
Retailer 3
-
$7,147 NZD
View
B+
Retailer 4
-
$7,378 NZD
View
Final sale: no returns
B+
Retailer 5
-
$7,531 NZD
View
B+
Retailer 6
-
$7,576 NZD
View
B+
Retailer 7
-
$7,649 NZD
View
B+
Retailer 8
-
$7,926 NZD
View
B+
Retailer 9
-
$7,993 NZD
View
B+
Retailer 10
-
$7,993 NZD
View
Retailer 11
-
$7,993 NZD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$8,096 NZD
View
B
Retailer 13
-
$8,401 NZD
View
Retailer 14
-
$8,523 NZD
View
Price last confirmed 29 days ago
B
Retailer 15
-
$8,992 NZD
View
B
Retailer 16
-
$9,222 NZD
View
B
Retailer 17
-
$9,752 NZD
View
B
Retailer 18
-
$12,696 NZD
View
Most Expensive
C
NZ Jewellers
1c568664-3667-46cb-8b10-3955c74db087 · Nov 5
$13,924 NZD
$7,719 USD
View
18 more retailers have this diamond
Prices start from $6,824 NZDSave up to $7,100 NZD

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
$6,824 NZD