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Round|Natural|IGI

3.50ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 635461965

Shape and cutting style on the report: Round brilliant

Certificate IGI 635461965

Diamond specifications and retailer prices

From $29,345 AUD
$20,613 USD
As of October 30, 2026
Save $23,985 AUD (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $53,330 AUD at MOH London · As of October 29, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 635461965. Listed at 16 retailers as of October 29, 2026, with prices from $29,345 to $53,330, a $23,985 spread on the same certified stone. MOH London lists it at $53,330. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 635461965
Dimensions9.60 × 9.51 × 6.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.60 mm9.51 mm3.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 635461965
Side View
Table 57.0%Crown 36.4°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 63.2%

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: $53,330 AUD|Low: $28,446 AUD|High: $53,684 AUD|Avg: $35,376 AUD|+2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7$29,345 AUD
Retailer 5$29,632 AUD
Retailer 8$31,224 AUD
Retailer 10$31,430 AUD
Retailer 9$31,484 AUD
Retailer 6$32,549 AUD
Retailer 3$33,228 AUD
Retailer 11$35,997 AUD
Retailer 12$37,381 AUD
Retailer 2$39,793 AUD
Retailer 4$41,797 AUD
MOH London$53,330 AUD

30 data points across 12 retailers

16 retailers$29,345 AUD to $53,330 AUD

A
Cheapest Retailer
-
$29,345 AUD
$20,613 USD
Retailer 2
-
$29,632 AUD
$20,815 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$31,224 AUD
$21,933 USD
View
A
Retailer 4
-
$31,430 AUD
$22,078 USD
View
A
Retailer 5
-
$31,484 AUD
$22,116 USD
View
A
Retailer 6
-
$32,549 AUD
$22,864 USD
View
Final sale: no returns
Retailer 7
-
$33,966 AUD
$23,859 USD
View
Price last confirmed 19 days ago
Retailer 8
-
$35,663 AUD
$25,051 USD
View
Price last confirmed 32 days ago
Retailer 9
-
$35,997 AUD
$25,286 USD
View
Price last confirmed 41 days ago
Retailer 10
-
$36,796 AUD
$25,847 USD
View
Price last confirmed 23 days ago
Retailer 11
-
$37,381 AUD
$26,258 USD
View
Price last confirmed 42 days ago
Retailer 12
-
$38,211 AUD
$26,841 USD
View
Price last confirmed 22 days ago
A
Retailer 13
-
$39,793 AUD
€26,621 EUR
View
Retailer 14
-
$47,073 AUD
$33,066 USD
View
Price last confirmed 41 days ago
Retailer 15
-
$48,118 AUD
$33,800 USD
View
Price last confirmed 28 days ago
Most Expensive
B+
MOH London
126A1AAD9 · Oct 29
$53,330 AUD
£29,497 GBP
View
15 more retailers have this diamond
Prices start from $29,345 AUDSave up to $23,985 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
$29,345 AUD