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Heart|Natural|GIA

1.03ct H SI2 Heart Natural Diamond

ID • H/SI2 • GIA 3525223624

Certificate GIA 3525223624

Diamond specifications and retailer prices

From $2,160 AUD
As of November 6, 2026
Save $2,944 AUD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,127 AUD at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-carat band, graded H 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 3525223624. Listed at 18 retailers as of November 4, 2026, with a 136% 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

1.03
Carat
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.3°
OriginNatural
Grading LabGIA
CertificateGIA 3525223624
Dimensions6.21 × 6.76 × 4.20 mm
L/W Ratio1.09
Top View
6.21 mm6.76 mm1.03 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3525223624
Side View
Table 56.0%Crown 36.4°Girdle: STK-VTKPavilion 41.3°Culet: NoneDepth 62.1%

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: $7,127 AUD|Low: $2,142 AUD|High: $7,127 AUD|Avg: $3,449 AUD|+11.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 8$2,160 AUD
Retailer 10$2,562 AUD
Retailer 3$2,639 AUD
Retailer 9$2,697 AUD
Retailer 13$2,805 AUD
Retailer 11$2,922 AUD
Retailer 4$3,013 AUD
Retailer 12$3,122 AUD
Retailer 6$3,173 AUD
Retailer 5$3,371 AUD
Retailer 2$3,967 AUD
Retailer 7$5,104 AUD
NZ Jewellers$7,127 AUD

42 data points across 13 retailers

18 retailers$2,160 AUD to $5,104 AUD

A
Cheapest Retailer
-
$2,160 AUD
Retailer 2
-
$2,562 AUD
View
Price last confirmed 19 days ago
B+
Retailer 3
-
$2,639 AUD
View
B+
Retailer 4
-
$2,697 AUD
View
Final sale: no returns
B+
Retailer 5
-
$2,805 AUD
View
Retailer 6
-
$2,922 AUD
View
Price last confirmed 17 days ago
Retailer 7
-
$2,922 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$3,013 AUD
View
Price last confirmed 10 days ago
Retailer 9
-
$3,056 AUD
View
Price last confirmed 21 days ago
Retailer 10
-
$3,062 AUD
View
Price last confirmed 47 days ago
B+
Retailer 11
-
$3,122 AUD
View
B+
Retailer 12
-
$3,173 AUD
View
Retailer 13
-
$3,371 AUD
View
Price last confirmed 16 days ago
Retailer 14
-
$3,534 AUD
View
Price last confirmed 48 days ago
B+
Retailer 15
-
$3,967 AUD
View
B
Retailer 16
-
$5,104 AUD
View
Retailer 17
-
$6,402 AUD
View
Price last confirmed 47 days ago
Most Expensive
NZ Jewellers
84a2d503-72b2-4b6e-8cb3-c01a3370296e · Oct 21
$7,127 AUD
$4,897 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $2,160 AUDSave up to $2,944 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
1.03ct Heart
$2,160 AUD