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Round|Natural|IGI

3.50ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 533209970

Shape and cutting style on the report: Round brilliant

Certificate IGI 533209970

Diamond specifications and retailer prices

From $29,266 AUD
As of November 5, 2026
Save $15,656 AUD (35%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $44,921 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 3.5ct natural round diamond

This 3.5ct 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 533209970. Listed at 22 retailers as of November 4, 2026, with prices from $29,266 to $44,921, a $15,656 spread on the same certified stone. MOH London lists it at $44,921. 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

3.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.6°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 533209970
Dimensions9.61 × 9.66 × 5.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.61 mm9.66 mm3.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 533209970
Side View
Table 61.5%Crown 34.6°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.1%

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 5
Current: $44,921 AUD|Low: $28,903 AUD|High: $45,583 AUD|Avg: $33,174 AUD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$28,903 AUD
Retailer 8$29,266 AUD
Retailer 6$29,641 AUD
Retailer 9$30,840 AUD
Retailer 5$31,791 AUD
Retailer 7$31,834 AUD
Retailer 3$31,841 AUD
Retailer 4$34,764 AUD
Retailer 2$37,127 AUD
MOH London$44,921 AUD

18 data points across 10 retailers

22 retailers$29,266 AUD to $44,921 AUD

A
Cheapest Retailer
-
$29,266 AUD
A
Retailer 2
-
$29,641 AUD
View
B+
Retailer 3
-
$31,791 AUD
View
Retailer 4
-
$31,834 AUD
View
Price last confirmed 21 days ago
Retailer 5
-
$31,834 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$31,834 AUD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$31,841 AUD
View
B+
Retailer 8
-
$33,425 AUD
View
Retailer 9
-
$33,425 AUD
View
Price last confirmed 22 days ago
Retailer 10
-
$33,425 AUD
View
Price last confirmed 12 days ago
Retailer 11
-
$33,425 AUD
View
Price last confirmed 8 days ago
Retailer 12
-
$34,487 AUD
View
Price last confirmed 27 days ago
Retailer 13
-
$34,487 AUD
View
Price last confirmed 8 days ago
Retailer 14
-
$34,487 AUD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
$34,764 AUD
View
Retailer 16
-
$35,812 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
$35,812 AUD
View
Retailer 18
-
$35,812 AUD
View
Price last confirmed 16 days ago
B+
Retailer 19
-
$37,127 AUD
View
Retailer 20
-
$40,857 AUD
View
Price last confirmed 23 days ago
Retailer 21
-
$40,857 AUD
View
Price last confirmed 17 days ago
Most Expensive
B
MOH London
18017C5BC · Nov 4
$44,921 AUD
£24,761 GBP
View
21 more retailers have this diamond
Prices start from $29,266 AUDSave up to $15,656 AUD

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
3.50ct Round
$29,266 AUD