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Heart|Natural|GIA

1.03ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6541531057

Certificate GIA 6541531057

Diamond specifications and retailer prices

From $2,425 AUD
£1,338 GBP
As of November 2, 2026
Save $3,558 AUD (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,983 AUD at NZ Jewellers · As of October 30, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541531057. Listed at 6 retailers as of October 30, 2026, with prices from $2,425 to $5,983, a $3,558 spread on the same certified stone. NZ Jewellers lists it at $5,983. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle38.17°
Pavilion angle42.89°
OriginNatural
Grading LabGIA
CertificateGIA 6541531057
Dimensions6.03 × 7.04 × 4.20 mm
L/W Ratio1.17
Top View
6.03 mm7.04 mm1.03 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6541531057
Side View
Table 62.0%Crown 38.17°Girdle: STK-THKPavilion 42.89°Culet: NoneDepth 59.7%

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 2
Current: $5,983 AUD|Low: $2,303 AUD|High: $5,983 AUD|Avg: $3,323 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$2,303 AUD
Retailer 2$2,425 AUD
Retailer 4$2,453 AUD
Retailer 6$2,566 AUD
Retailer 5$2,635 AUD
Retailer 8$2,996 AUD
Retailer 9$3,357 AUD
Retailer 3$4,298 AUD
NZ Jewellers$5,983 AUD

28 data points across 9 retailers

6 retailers$2,425 AUD to $5,983 AUD

A
Cheapest Retailer
-
$2,425 AUD
£1,338 GBP
A
Retailer 2
-
$2,453 AUD
$1,719 USD
View
A
Retailer 3
-
$2,566 AUD
$1,798 USD
View
A
Retailer 4
-
$2,635 AUD
$1,847 USD
View
B+
Retailer 5
-
$4,298 AUD
£2,372 GBP
View
Most Expensive
B
NZ Jewellers
ea271e85-02d0-421d-bd70-cd62fb49ac31 · Oct 30
$5,983 AUD
$4,193 USD
View
5 more retailers have this diamond
Prices start from $2,425 AUDSave up to $3,558 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
$2,425 AUD