CaratHunter
Plans
Round|Natural|IGI

4.01ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 605300501

Certificate IGI 605300501

Diamond specifications and retailer prices

From $28,783 NZD
As of November 5, 2026
Save $21,602 NZD (43%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $50,385 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 4.01ct natural round diamond

This 4.01ct 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 605300501. Listed at 13 retailers as of November 4, 2026, with prices from $28,783 to $50,385, a $21,602 spread on the same certified stone. MOH London lists it at $50,385. 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

4.01
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 605300501
Dimensions10.09 × 10.02 × 6.35 mm
L/W Ratio1.01
Top View
10.09 mm10.02 mm4.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 605300501
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.1%

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: $50,385 NZD|Low: $28,783 NZD|High: $51,128 NZD|Avg: $36,688 NZD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4$28,783 NZD
Retailer 6$32,826 NZD
Retailer 2$33,587 NZD
Retailer 7$34,032 NZD
Retailer 5$34,858 NZD
Retailer 8$37,492 NZD
Retailer 3$38,947 NZD
MOH London$50,385 NZD

40 data points across 8 retailers

13 retailers$28,783 NZD to $50,385 NZD

A
Cheapest Retailer
-
$28,783 NZD
A
Retailer 2
-
$32,826 NZD
View
A
Retailer 3
-
$33,587 NZD
View
Retailer 4
-
$33,933 NZD
View
Price last confirmed 72 days ago
A
Retailer 5
-
$34,858 NZD
View
Retailer 6
-
$35,706 NZD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$37,492 NZD
View
A
Retailer 8
-
$38,682 NZD
View
A
Retailer 9
-
$38,947 NZD
View
B+
Retailer 10
-
$39,698 NZD
View
B+
Retailer 11
-
$40,169 NZD
View
B+
Retailer 12
-
$45,826 NZD
View
Most Expensive
B+
MOH London
2EF3E7210 · Nov 4
$50,385 NZD
£22,302 GBP
View
12 more retailers have this diamond
Prices start from $28,783 NZDSave up to $21,602 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
4.01ct Round
$28,783 NZD