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Round|Natural|IGI

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • IGI 828653796

Shape and cutting style on the report: Round brilliant

Certificate IGI 828653796

Diamond specifications and retailer prices

From $2,976 AUD
As of November 6, 2026
Save $4,017 AUD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,993 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 828653796. Listed at 14 retailers as of November 5, 2026, with prices from $2,976 to $6,993, a $4,017 spread on the same certified stone. NZ Jewellers lists it at $6,993. 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 angle36.3°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 828653796
Dimensions6.41 × 6.49 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.41 mm6.49 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 828653796
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.4%

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: $6,993 AUD|Low: $2,976 AUD|High: $6,993 AUD|Avg: $3,842 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 2$2,976 AUD
Retailer 6$3,087 AUD
Retailer 7$3,153 AUD
Retailer 5$3,261 AUD
Retailer 4$3,343 AUD
Retailer 12$3,344 AUD
Retailer 8$3,493 AUD
Retailer 14$3,500 AUD
Retailer 3$3,677 AUD
Retailer 10$3,801 AUD
Retailer 9$3,896 AUD
Retailer 11$4,081 AUD
Retailer 13$5,843 AUD
NZ Jewellers$6,993 AUD

8 data points across 14 retailers

14 retailers$2,976 AUD to $6,993 AUD

A
Cheapest Retailer
-
$2,976 AUD
A
Retailer 2
-
$3,087 AUD
View
Final sale: no returns
A
Retailer 3
-
$3,153 AUD
View
A
Retailer 4
-
$3,261 AUD
View
A
Retailer 5
-
$3,343 AUD
View
A
Retailer 6
-
$3,344 AUD
View
B+
Retailer 7
-
$3,493 AUD
View
B+
Retailer 8
-
$3,500 AUD
View
B+
Retailer 9
-
$3,677 AUD
View
B+
Retailer 10
-
$3,801 AUD
View
B+
Retailer 11
-
$3,896 AUD
View
B+
Retailer 12
-
$4,081 AUD
View
B
Retailer 13
-
$5,843 AUD
View
Most Expensive
B
NZ Jewellers
1d7e74f0-7637-4c67-8077-76cf2e13601e · Nov 5
$6,993 AUD
$4,895 USD
View
13 more retailers have this diamond
Prices start from $2,976 AUDSave up to $4,017 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
$2,976 AUD