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Round|Natural|IGI

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • IGI 826681826

Shape and cutting style on the report: Round brilliant

Certificate IGI 826681826

Diamond specifications and retailer prices

From $3,240 AUD
As of November 6, 2026
Save $4,258 AUD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,498 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 826681826. Listed at 18 retailers as of November 5, 2026, with prices from $3,240 to $7,498, a $4,258 spread on the same certified stone. NZ Jewellers lists it at $7,498. 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

1.05
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 826681826
Dimensions6.42 × 6.46 × 4.09 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.42 mm6.46 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 826681826
Side View
Table 58.0%Crown 36.4°Girdle: MediumPavilion 41.5°CuletDepth 63.5%

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: $7,498 AUD|Low: $3,240 AUD|High: $7,498 AUD|Avg: $4,345 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
November 6, 2026
Retailer 6$3,240 AUD
Retailer 4$3,243 AUD
Retailer 11$3,310 AUD
Retailer 5$3,581 AUD
Retailer 14$3,587 AUD
Retailer 12$3,753 AUD
Retailer 2$3,840 AUD
Retailer 3$4,138 AUD
Retailer 7$4,181 AUD
Retailer 8$4,244 AUD
Retailer 9$4,377 AUD
Retailer 13$5,054 AUD
Retailer 10$6,267 AUD
NZ Jewellers$7,498 AUD

41 data points across 14 retailers

18 retailers$3,240 AUD to $7,498 AUD

A
Cheapest Retailer
-
$3,240 AUD
A
Retailer 2
-
$3,243 AUD
View
A
Retailer 3
-
$3,310 AUD
View
Final sale: no returns
B+
Retailer 4
-
$3,581 AUD
View
B+
Retailer 5
-
$3,587 AUD
View
Retailer 6
-
$3,587 AUD
View
Price last confirmed 56 days ago
B+
Retailer 7
-
$3,753 AUD
View
B+
Retailer 8
-
$3,787 AUD
View
B+
Retailer 9
-
$3,840 AUD
View
Retailer 10
-
$4,138 AUD
View
Price last confirmed 60 days ago
B+
Retailer 11
-
$4,138 AUD
View
B+
Retailer 12
-
$4,181 AUD
View
B+
Retailer 13
-
$4,244 AUD
View
B+
Retailer 14
-
$4,377 AUD
View
B
Retailer 15
-
$5,054 AUD
View
B
Retailer 16
-
$6,267 AUD
View
Retailer 17
-
$7,498 AUD
View
Price last confirmed 57 days ago
Most Expensive
B
NZ Jewellers
19af69cb-3516-48f6-ab75-96d7b98d24ed · Nov 5
$7,498 AUD
$5,249 USD
View
17 more retailers have this diamond
Prices start from $3,240 AUDSave up to $4,258 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
1.05ct Round
$3,240 AUD