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Round|Natural|IGI

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 747534602

Shape and cutting style on the report: Round brilliant

Certificate IGI 747534602

Diamond specifications and retailer prices

From $1,330 AUD
As of November 5, 2026
Save $5,087 AUD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,793 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 747534602. Listed at 13 retailers as of November 5, 2026, with a 382% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.1°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 747534602
Dimensions6.46 × 6.54 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.46 mm6.54 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 747534602
Side View
Table 59.0%Crown 33.1°Girdle: MediumPavilion 41.4°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $8,793 AUD|Low: $1,330 AUD|High: $8,793 AUD|Avg: $2,655 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6$1,330 AUD
Retailer 4$1,607 AUD
Retailer 7$2,291 AUD
Retailer 2$2,297 AUD
Retailer 12$4,854 AUD
Retailer 11$5,043 AUD
Retailer 10$5,058 AUD
Retailer 3$5,258 AUD
Retailer 8$5,460 AUD
Retailer 9$6,067 AUD
Retailer 5$6,417 AUD
MOH London$8,793 AUD

42 data points across 12 retailers

13 retailers$1,330 AUD to $6,417 AUD

A
Cheapest Retailer
-
$1,330 AUD
A
Retailer 2
-
$1,607 AUD
View
A
Retailer 3
-
$1,843 AUD
View
A
Retailer 4
-
$2,291 AUD
View
B+
Retailer 5
-
$2,297 AUD
View
B
Retailer 6
-
$4,854 AUD
View
B
Retailer 7
-
$5,043 AUD
View
B
Retailer 8
-
$5,058 AUD
View
B
Retailer 9
-
$5,258 AUD
View
B
Retailer 10
-
$5,460 AUD
View
B
Retailer 11
-
$6,067 AUD
View
C
Retailer 12
-
$6,417 AUD
View
Most Expensive
MOH London
6F4DCA684 · Nov 2
$8,793 AUD
£4,847 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $1,330 AUDSave up to $5,087 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 Round
$1,330 AUD