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Round|Natural|IGI

3.05ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 727559258

Shape and cutting style on the report: Round brilliant

Certificate IGI 727559258

Diamond specifications and retailer prices

From $17,872 AUD
As of November 6, 2026
Save $14,673 AUD (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $32,545 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 3.05ct natural round diamond

This 3.05ct 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 727559258. Listed at 15 retailers as of November 4, 2026, with prices from $17,872 to $32,545, a $14,673 spread on the same certified stone. MOH London lists it at $32,545. 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

3.05
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 727559258
Dimensions9.24 × 9.28 × 5.74 mm
L/W Ratio1.00
Girdle conditionPARTLY FACETED
Culet sizeNone
Top View
9.24 mm9.28 mm3.05 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 727559258
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.0%

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 6
Current: $32,545 AUD|Low: $17,872 AUD|High: $36,855 AUD|Avg: $25,162 AUD|-11.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2$17,872 AUD
Retailer 11$21,203 AUD
Retailer 3$22,102 AUD
Retailer 4$23,063 AUD
Retailer 8$24,600 AUD
Retailer 6$24,984 AUD
Retailer 12$25,184 AUD
Retailer 9$25,623 AUD
Retailer 7$25,646 AUD
Retailer 10$25,946 AUD
Retailer 5$29,600 AUD
MOH London$32,545 AUD

25 data points across 12 retailers

15 retailers$17,872 AUD to $32,545 AUD

A
Cheapest Retailer
-
$17,872 AUD
A
Retailer 2
-
$21,203 AUD
View
A
Retailer 3
-
$21,229 AUD
View
A
Retailer 4
-
$22,102 AUD
View
Final sale: no returns
Retailer 5
-
$23,063 AUD
View
Price last confirmed 13 days ago
Retailer 6
-
$23,099 AUD
View
Price last confirmed 30 days ago
A
Retailer 7
-
$24,600 AUD
View
A
Retailer 8
-
$24,669 AUD
View
A
Retailer 9
-
$24,984 AUD
View
A
Retailer 10
-
$25,184 AUD
View
A
Retailer 11
-
$25,623 AUD
View
A
Retailer 12
-
$25,646 AUD
View
A
Retailer 13
-
$25,946 AUD
View
A
Retailer 14
-
$29,600 AUD
View
Most Expensive
A
MOH London
BF39B5D14 · Nov 4
$32,545 AUD
£17,939 GBP
View
14 more retailers have this diamond
Prices start from $17,872 AUDSave up to $14,673 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
3.05ct Round
$17,872 AUD