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Heart|Natural|GIA

1.02ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2546375879

Certificate GIA 2546375879

Diamond specifications and retailer prices

From $1,770 AUD
As of November 6, 2026
Save $2,179 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,114 AUD at NZ Jewellers · As of September 19, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546375879. Listed at 16 retailers as of November 4, 2026, with a 123% 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

1.02
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.5°
OriginNatural
Grading LabGIA
CertificateGIA 2546375879
Dimensions6.10 × 7.06 × 4.11 mm
L/W Ratio1.16
Top View
6.10 mm7.06 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546375879
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 40.5°Culet: NoneDepth 58.2%

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 6
Current: $1,819 AUD|Low: $1,751 AUD|High: $4,228 AUD|Avg: $2,494 AUD|-6.5%
Retailer 1
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
November 6, 2026
Retailer 5$1,770 AUD
Retailer 1$1,819 AUD
Retailer 13$1,876 AUD
Retailer 2$1,960 AUD
Retailer 15$2,064 AUD
Retailer 4$2,125 AUD
Retailer 10$2,183 AUD
Retailer 6$2,221 AUD
Retailer 8$2,460 AUD
Retailer 9$2,479 AUD
Retailer 11$2,576 AUD
Retailer 12$2,738 AUD
Retailer 7$3,120 AUD
Retailer 3$3,574 AUD
Retailer 14$3,949 AUD

30 data points across 15 retailers

16 retailers$1,770 AUD to $3,949 AUD

A
Cheapest Retailer
-
$1,770 AUD
A
Retailer 2
-
$1,819 AUD
View
A
Retailer 3
-
$1,876 AUD
View
Final sale: no returns
A
Retailer 4
-
$1,960 AUD
View
A
Retailer 5
-
$2,064 AUD
View
A
Retailer 6
-
$2,125 AUD
View
A
Retailer 7
-
$2,183 AUD
View
A
Retailer 8
-
$2,221 AUD
View
B+
Retailer 9
-
$2,460 AUD
View
B+
Retailer 10
-
$2,479 AUD
View
B+
Retailer 11
-
$2,576 AUD
View
B+
Retailer 12
-
$2,738 AUD
View
Retailer 13
-
$3,120 AUD
View
Price last confirmed 32 days ago
B+
Retailer 14
-
$3,574 AUD
View
B
Retailer 15
-
$3,949 AUD
View
Most Expensive
NZ Jewellers
ed203f2b-3b92-4628-a2f3-77e7ce7e766a · Sep 19
$6,114 AUD
$4,201 USD
View
Price last confirmed 48 days ago
15 more retailers have this diamond
Prices start from $1,770 AUDSave up to $2,179 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.

A
1.02ct Heart
$1,770 AUD