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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 $3,628 AUD
As of November 5, 2026
Save $4,263 AUD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,891 AUD 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 $3,628 to $7,891, a $4,263 spread on the same certified stone. NZ Jewellers lists it at $7,891. 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

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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: $4,969 AUD|Low: $4,103 AUD|High: $7,664 AUD|Avg: $5,081 AUD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$4,103 AUD
Retailer 4$4,261 AUD
Retailer 6$4,422 AUD
Retailer 2$4,686 AUD
Retailer 1$4,969 AUD
Retailer 7$5,257 AUD
Retailer 3$7,554 AUD

44 data points across 7 retailers

14 retailers$3,628 AUD to $7,891 AUD

B
Cheapest Retailer
-
$3,628 AUD
B
Retailer 2
-
$3,673 AUD
View
B
Retailer 3
-
$4,103 AUD
View
Retailer 4
-
$4,103 AUD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$4,189 AUD
View
B
Retailer 6
-
$4,261 AUD
View
B
Retailer 7
-
$4,422 AUD
View
B
Retailer 8
-
$4,454 AUD
View
B
Retailer 9
-
$4,686 AUD
View
B
Retailer 10
-
$4,734 AUD
View
B
Retailer 11
-
$4,969 AUD
View
Retailer 12
-
$5,257 AUD
View
Price last confirmed 14 days ago
B
Retailer 13
-
$7,554 AUD
View
Most Expensive
C
NZ Jewellers
3b2c707b-3a6a-46de-bee9-b6a6c4775601 · Nov 5
$7,891 AUD
$5,422 USD
View
13 more retailers have this diamond
Prices start from $3,628 AUDSave up to $4,263 AUD

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
$3,628 AUD