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1.13ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 670479172

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479172

Diamond specifications and retailer prices

From $4,253 NZD
$2,397 USD
As of October 30, 2026
Save $5,674 NZD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,927 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.13ct natural round diamond

This 1.13ct 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 670479172. Listed at 14 retailers as of October 30, 2026, with prices from $4,253 to $9,927, a $5,674 spread on the same certified stone. NZ Jewellers lists it at $9,927. 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

1.13
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 670479172
Dimensions6.62 × 6.59 × 4.15 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
6.62 mm6.59 mm1.13 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670479172
Side View
Table 56.0%Crown 35.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.8%

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: Oct 30
Current: $4,459 NZD|Low: $3,652 NZD|High: $8,218 NZD|Avg: $5,385 NZD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$4,383 NZD
Retailer 1$4,459 NZD
Retailer 8$4,675 NZD
Retailer 7$4,931 NZD
Retailer 3$5,135 NZD
Retailer 5$5,569 NZD
Retailer 4$5,836 NZD
Retailer 2$8,121 NZD

41 data points across 8 retailers

14 retailers$4,253 NZD to $9,927 NZD

A
Cheapest Retailer
-
$4,253 NZD
$2,397 USD
A
Retailer 2
-
$4,383 NZD
$2,470 USD
View
Final sale: no returns
A
Retailer 3
-
$4,459 NZD
£1,979 GBP
View
B+
Retailer 4
-
$4,675 NZD
$2,635 USD
View
B+
Retailer 5
-
$4,748 NZD
$2,676 USD
View
B+
Retailer 6
-
$4,748 NZD
$2,676 USD
View
B+
Retailer 7
-
$4,931 NZD
$2,779 USD
View
B+
Retailer 8
-
$4,999 NZD
$2,817 USD
View
B+
Retailer 9
-
$5,135 NZD
£2,279 GBP
View
B+
Retailer 10
-
$5,479 NZD
$3,088 USD
View
B+
Retailer 11
-
$5,569 NZD
€2,989 EUR
View
B+
Retailer 12
-
$5,836 NZD
ZAR 53,139 ZAR
View
B
Retailer 13
-
$8,121 NZD
£3,604 GBP
View
Most Expensive
B
NZ Jewellers
a83b745a-ace1-4dc3-96ed-a9fd331a57d1 · Oct 30
$9,927 NZD
$5,595 USD
View
13 more retailers have this diamond
Prices start from $4,253 NZDSave up to $5,674 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
1.13ct Round
$4,253 NZD