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Round|Natural|IGI

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 754512609

Shape and cutting style on the report: Round brilliant

Certificate IGI 754512609

Diamond specifications and retailer prices

From $3,016 NZD
As of November 6, 2026
Save $5,101 NZD (63%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,118 NZD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 754512609. Listed at 21 retailers as of November 5, 2026, with prices from $3,016 to $8,118, a $5,101 spread on the same certified stone. NZ Jewellers lists it at $8,118. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 754512609
Dimensions6.49 × 6.53 × 3.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.49 mm6.53 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 754512609
Side View
Table 59.0%Crown 31.4°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.3%

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: $8,118 NZD|Low: $3,016 NZD|High: $8,118 NZD|Avg: $4,478 NZD
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 2$3,016 NZD
Retailer 10$3,409 NZD
Retailer 9$3,507 NZD
Retailer 11$3,583 NZD
Retailer 18$3,619 NZD
Retailer 13$3,714 NZD
Retailer 5$3,882 NZD
Retailer 7$3,882 NZD
Retailer 21$3,914 NZD
Retailer 3$3,945 NZD
Retailer 6$4,062 NZD
Retailer 4$4,133 NZD
Retailer 8$4,264 NZD
Retailer 19$4,266 NZD
Retailer 16$4,456 NZD
Retailer 12$4,479 NZD
Retailer 17$4,739 NZD
Retailer 15$5,156 NZD
Retailer 14$5,828 NZD
Retailer 20$6,783 NZD
NZ Jewellers$8,118 NZD

21 data points across 21 retailers

21 retailers$3,016 NZD to $8,118 NZD

A
Cheapest Retailer
-
$3,016 NZD
A
Retailer 2
-
$3,409 NZD
View
A
Retailer 3
-
$3,507 NZD
View
A
Retailer 4
-
$3,583 NZD
View
Final sale: no returns
A
Retailer 5
-
$3,619 NZD
View
A
Retailer 6
-
$3,714 NZD
View
A
Retailer 7
-
$3,882 NZD
View
Retailer 8
-
$3,882 NZD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$3,914 NZD
View
A
Retailer 10
-
$3,945 NZD
View
A
Retailer 11
-
$4,062 NZD
View
B+
Retailer 12
-
$4,133 NZD
View
B+
Retailer 13
-
$4,264 NZD
View
A
Retailer 14
-
$4,266 NZD
View
B+
Retailer 15
-
$4,456 NZD
View
B+
Retailer 16
-
$4,479 NZD
View
B+
Retailer 17
-
$4,739 NZD
View
B+
Retailer 18
-
$5,156 NZD
View
B
Retailer 19
-
$5,828 NZD
View
B
Retailer 20
-
$6,783 NZD
View
Most Expensive
B
NZ Jewellers
8a27d3b3-6ae1-4384-927b-ca29b6703e37 · Nov 5
$8,118 NZD
$4,500 USD
View
20 more retailers have this diamond
Prices start from $3,016 NZDSave up to $5,101 NZD

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
$3,016 NZD