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Round|Natural|IGI

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 648418582

Shape and cutting style on the report: Round brilliant

Certificate IGI 648418582

Diamond specifications and retailer prices

From $2,170 NZD
As of November 4, 2026
Save $3,542 NZD (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,712 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 648418582. Listed at 15 retailers as of November 4, 2026, with prices from $2,170 to $5,712, a $3,542 spread on the same certified stone. NZ Jewellers lists it at $5,712. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.7°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 648418582
Dimensions6.49 × 6.44 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.49 mm6.44 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 648418582
Side View
Table 57.0%Crown 33.7°Girdle: MediumPavilion 41.6°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $2,240 NZD|Low: $2,170 NZD|High: $4,341 NZD|Avg: $2,722 NZD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$2,170 NZD
Retailer 6$2,215 NZD
Retailer 1$2,240 NZD
Retailer 9$2,450 NZD
Retailer 7$2,544 NZD
Retailer 2$2,677 NZD
Retailer 4$2,857 NZD
Retailer 3$2,860 NZD
Retailer 5$4,278 NZD

41 data points across 9 retailers

15 retailers$2,170 NZD to $5,712 NZD

A
Cheapest Retailer
-
$2,170 NZD
A
Retailer 2
-
$2,215 NZD
View
A
Retailer 3
-
$2,240 NZD
View
A
Retailer 4
-
$2,309 NZD
View
Retailer 5
-
$2,343 NZD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$2,343 NZD
View
A
Retailer 7
-
$2,450 NZD
View
A
Retailer 8
-
$2,544 NZD
View
A
Retailer 9
-
$2,581 NZD
View
A
Retailer 10
-
$2,677 NZD
View
B+
Retailer 11
-
$2,702 NZD
View
A
Retailer 12
-
$2,857 NZD
View
A
Retailer 13
-
$2,860 NZD
View
B
Retailer 14
-
$4,278 NZD
View
Most Expensive
B
NZ Jewellers
f45d1d6c-b963-4e77-8cbb-49c732f40dcc · Nov 5
$5,712 NZD
$3,211 USD
View
14 more retailers have this diamond
Prices start from $2,170 NZDSave up to $3,542 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
$2,170 NZD