Round|Natural|IGI

4.02ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 843671487

Shape and cutting style on the report: Round brilliant

Certificate IGI 843671487

Diamond specifications and retailer prices

From $34,678 NZD
As of November 5, 2026
Save $24,757 NZD (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $59,435 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 4.02ct natural round diamond

This 4.02ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 843671487. Listed at 15 retailers as of November 4, 2026, with prices from $34,678 to $59,435, a $24,757 spread on the same certified stone. MOH London lists it at $59,435. 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

4.02
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 843671487
Dimensions10.08 × 10.14 × 6.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
10.08 mm10.14 mm4.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 843671487
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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 5
Current: $59,435 NZD|Low: $34,678 NZD|High: $60,233 NZD|Avg: $44,659 NZD|-1.3%
MOH London
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 9$34,678 NZD
Retailer 6$38,721 NZD
Retailer 8$39,001 NZD
Retailer 2$39,451 NZD
Retailer 5$41,039 NZD
Retailer 13$42,121 NZD
Retailer 12$44,227 NZD
Retailer 11$45,631 NZD
Retailer 10$45,999 NZD
Retailer 4$46,851 NZD
Retailer 3$47,385 NZD
Retailer 7$47,486 NZD
Retailer 14$54,059 NZD
MOH London$59,435 NZD

26 data points across 14 retailers

15 retailers$34,678 NZD to $59,435 NZD

A
Cheapest Retailer
-
$34,678 NZD
A
Retailer 2
-
$38,721 NZD
View
A
Retailer 3
-
$39,001 NZD
View
A
Retailer 4
-
$39,451 NZD
View
A
Retailer 5
-
$41,039 NZD
View
A
Retailer 6
-
$41,125 NZD
View
Retailer 7
-
$42,121 NZD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$44,227 NZD
View
A
Retailer 9
-
$45,631 NZD
View
A
Retailer 10
-
$45,999 NZD
View
B+
Retailer 11
-
$46,851 NZD
View
B+
Retailer 12
-
$47,385 NZD
View
A
Retailer 13
-
$47,486 NZD
View
B+
Retailer 14
-
$54,059 NZD
View
Most Expensive
B+
MOH London
5549054B1 · Nov 4
$59,435 NZD
£26,308 GBP
View
14 more retailers have this diamond
Prices start from $34,678 NZDSave up to $24,757 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
4.02ct Round
$34,678 NZD