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Heart|Natural|GIA

1.02ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 5151454109

Certificate GIA 5151454109

Diamond specifications and retailer prices

From $4,497 NZD
As of November 5, 2026
Save $5,284 NZD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,781 NZD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5151454109. Listed at 14 retailers as of November 5, 2026, with prices from $4,497 to $9,781, a $5,284 spread on the same certified stone. NZ Jewellers lists it at $9,781. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5151454109
Dimensions6.64 × 7.26 × 3.34 mm
L/W Ratio1.09
Top View
6.64 mm7.26 mm1.02 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5151454109
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 46.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,159 NZD|Low: $5,085 NZD|High: $9,499 NZD|Avg: $6,297 NZD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$5,085 NZD
Retailer 4$5,282 NZD
Retailer 6$5,480 NZD
Retailer 2$5,809 NZD
Retailer 1$6,159 NZD
Retailer 7$6,516 NZD
Retailer 3$9,362 NZD

44 data points across 7 retailers

14 retailers$4,497 NZD to $9,781 NZD

B
Cheapest Retailer
-
$4,497 NZD
B
Retailer 2
-
$4,553 NZD
View
B
Retailer 3
-
$5,085 NZD
View
Retailer 4
-
$5,085 NZD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$5,192 NZD
View
B
Retailer 6
-
$5,282 NZD
View
B
Retailer 7
-
$5,480 NZD
View
B
Retailer 8
-
$5,520 NZD
View
B
Retailer 9
-
$5,809 NZD
View
B
Retailer 10
-
$5,868 NZD
View
B
Retailer 11
-
$6,159 NZD
View
Retailer 12
-
$6,516 NZD
View
Price last confirmed 14 days ago
B
Retailer 13
-
$9,362 NZD
View
Most Expensive
C
NZ Jewellers
3b2c707b-3a6a-46de-bee9-b6a6c4775601 · Nov 5
$9,781 NZD
$5,422 USD
View
13 more retailers have this diamond
Prices start from $4,497 NZDSave up to $5,284 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
1.02ct Heart
$4,497 NZD