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Round|Natural|IGI

1.03ct F SI1 Round Natural Diamond

EX • F/SI1 • IGI 801639013

Shape and cutting style on the report: Round brilliant

Certificate IGI 801639013

Diamond specifications and retailer prices

From $2,832 AUD
$1,985 USD
As of November 1, 2026
Save $3,918 AUD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,751 AUD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 801639013. Listed at 16 retailers as of November 1, 2026, with prices from $2,832 to $6,751, a $3,918 spread on the same certified stone. NZ Jewellers lists it at $6,751. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.1°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 801639013
Dimensions6.40 × 6.43 × 4.04 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.40 mm6.43 mm1.03 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 801639013
Side View
Table 56.0%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.0%

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 1
Current: $6,751 AUD|Low: $2,832 AUD|High: $6,751 AUD|Avg: $3,772 AUD
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
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 6$2,832 AUD
Retailer 5$2,917 AUD
Retailer 7$2,979 AUD
Retailer 3$3,055 AUD
Retailer 2$3,106 AUD
Retailer 4$3,229 AUD
Retailer 14$3,229 AUD
Retailer 15$3,239 AUD
Retailer 16$3,377 AUD
Retailer 13$3,428 AUD
Retailer 9$3,584 AUD
Retailer 8$3,726 AUD
Retailer 12$3,969 AUD
Retailer 10$4,015 AUD
Retailer 11$5,658 AUD
NZ Jewellers$6,751 AUD

8 data points across 16 retailers

16 retailers$2,832 AUD to $6,751 AUD

A
Cheapest Retailer
-
$2,832 AUD
$1,985 USD
A
Retailer 2
-
$2,917 AUD
$2,044 USD
View
A
Retailer 3
-
$2,979 AUD
$2,088 USD
View
Final sale: no returns
A
Retailer 4
-
$3,055 AUD
$2,141 USD
View
A
Retailer 5
-
$3,106 AUD
£1,714 GBP
View
A
Retailer 6
-
$3,229 AUD
$2,263 USD
View
A
Retailer 7
-
$3,229 AUD
$2,263 USD
View
A
Retailer 8
-
$3,239 AUD
$2,270 USD
View
A
Retailer 9
-
$3,377 AUD
$2,367 USD
View
A
Retailer 10
-
$3,428 AUD
$2,402 USD
View
A
Retailer 11
-
$3,584 AUD
£1,978 GBP
View
B+
Retailer 12
-
$3,726 AUD
$2,611 USD
View
B+
Retailer 13
-
$3,969 AUD
ZAR 44,933 ZAR
View
B+
Retailer 14
-
$4,015 AUD
€2,680 EUR
View
B+
Retailer 15
-
$5,658 AUD
£3,122 GBP
View
Most Expensive
B
NZ Jewellers
e1337ce9-913f-49c0-85d2-36b6ab1b47f3 · Nov 2
$6,751 AUD
$4,731 USD
View
15 more retailers have this diamond
Prices start from $2,832 AUDSave up to $3,918 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
$2,832 AUD