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Heart|Natural|GIA

1.03ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 7451351746

Certificate GIA 7451351746

Diamond specifications and retailer prices

From $2,970 AUD
As of November 6, 2026
Save $3,652 AUD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,623 AUD at MOH London · As of November 2, 2026
View at MOH London

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 7451351746. Listed at 12 retailers as of November 2, 2026, with prices from $2,970 to $6,623, a $3,652 spread on the same certified stone. MOH London lists it at $6,623. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle37.1°
OriginNatural
Grading LabGIA
CertificateGIA 7451351746
Dimensions5.91 × 5.60 × 3.88 mm
L/W Ratio1.06
Top View
5.91 mm5.60 mm1.03 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7451351746
Side View
Table 65.0%Crown 33.9°Girdle: STK-VTKPavilion 37.1°Culet: NoneDepth 69.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,623 AUD|Low: $2,940 AUD|High: $6,702 AUD|Avg: $3,877 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$2,970 AUD
Retailer 2$3,093 AUD
Retailer 6$3,161 AUD
Retailer 5$3,165 AUD
Retailer 10$3,227 AUD
Retailer 9$3,333 AUD
Retailer 7$3,425 AUD
Retailer 4$3,999 AUD
Retailer 3$4,692 AUD
MOH London$6,623 AUD

44 data points across 10 retailers

12 retailers$2,970 AUD to $6,623 AUD

B+
Cheapest Retailer
-
$2,970 AUD
B+
Retailer 2
-
$3,093 AUD
View
B+
Retailer 3
-
$3,093 AUD
View
B+
Retailer 4
-
$3,161 AUD
View
Final sale: no returns
Retailer 5
-
$3,165 AUD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$3,227 AUD
View
B+
Retailer 7
-
$3,333 AUD
View
Retailer 8
-
$3,425 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$3,739 AUD
View
B+
Retailer 10
-
$3,999 AUD
View
B
Retailer 11
-
$4,692 AUD
View
Most Expensive
B
MOH London
03574CBE7 · Nov 2
$6,623 AUD
£3,583 GBP
View
11 more retailers have this diamond
Prices start from $2,970 AUDSave up to $3,652 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+
1.03ct Heart
$2,970 AUD