CaratHunter
Plans
Heart|Natural|GIA

1.03ct H SI2 Heart Natural Diamond

ID • H/SI2 • GIA 7506856545

Certificate GIA 7506856545

Diamond specifications and retailer prices

From $1,639 AUD
As of November 6, 2026
Save $2,250 AUD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,756 AUD at NZ Jewellers · As of September 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 7506856545. Listed at 19 retailers as of November 2, 2026, with a 137% 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
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle37.6°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7506856545
Dimensions6.18 × 6.59 × 4.18 mm
L/W Ratio1.07
Cert comments
Additional twinning wisps, pinpoints and surface graining are not shown.
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
6.18 mm6.59 mm1.03 ctH / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7506856545
Side View
Table 58.0%Crown 37.6°Girdle: STK-ETKPavilion 41.4°Culet: NDepth 63.4%

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: $5,414 AUD|Low: $1,639 AUD|High: $5,756 AUD|Avg: $2,729 AUD|-5.9%
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 10$1,639 AUD
Retailer 9$2,049 AUD
Retailer 13$2,058 AUD
Retailer 12$2,215 AUD
Retailer 11$2,219 AUD
Retailer 5$2,359 AUD
Retailer 6$2,451 AUD
Retailer 3$2,562 AUD
Retailer 4$2,685 AUD
Retailer 8$2,733 AUD
Retailer 2$3,014 AUD
Retailer 7$3,889 AUD
NZ Jewellers$5,414 AUD

43 data points across 13 retailers

19 retailers$1,639 AUD to $3,889 AUD

A
Cheapest Retailer
-
$1,639 AUD
B+
Retailer 2
-
$2,049 AUD
View
Final sale: no returns
A
Retailer 3
-
$2,058 AUD
View
B+
Retailer 4
-
$2,215 AUD
View
Retailer 5
-
$2,219 AUD
View
Price last confirmed 17 days ago
Retailer 6
-
$2,219 AUD
View
Price last confirmed 21 days ago
Retailer 7
-
$2,321 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$2,359 AUD
View
Price last confirmed 49 days ago
Retailer 9
-
$2,359 AUD
View
Price last confirmed 47 days ago
A
Retailer 10
-
$2,451 AUD
View
Retailer 11
-
$2,562 AUD
View
Price last confirmed 16 days ago
Retailer 12
-
$2,685 AUD
View
Price last confirmed 41 days ago
Retailer 13
-
$2,723 AUD
View
Price last confirmed 48 days ago
Retailer 14
-
$2,733 AUD
View
Price last confirmed 19 days ago
B+
Retailer 15
-
$3,014 AUD
View
B
Retailer 16
-
$3,889 AUD
View
Retailer 17
-
$5,414 AUD
View
Price last confirmed 16 days ago
Retailer 18
-
$5,756 AUD
View
Price last confirmed 49 days ago
Most Expensive
NZ Jewellers
a3fcc4ab-f2bb-4c44-bcd2-b2f500e91348 · Sep 21
$5,756 AUD
$3,955 USD
View
Price last confirmed 46 days ago
18 more retailers have this diamond
Prices start from $1,639 AUDSave up to $2,250 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
$1,639 AUD