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Round|Natural|IGI

3.09ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 623473411

Shape and cutting style on the report: Round brilliant

Certificate IGI 623473411

Diamond specifications and retailer prices

From $24,225 AUD
$17,017 USD
As of October 26, 2026
Save $13,635 AUD (36%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $37,861 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 3.09ct natural round diamond

This 3.09ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 623473411. Listed at 10 retailers as of October 26, 2026, with prices from $24,225 to $37,861, a $13,635 spread on the same certified stone. MOH London lists it at $37,861. 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

3.09
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 623473411
Dimensions9.24 × 9.20 × 5.81 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
9.24 mm9.20 mm3.09 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 623473411
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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 26
Current: $37,861 AUD|Low: $24,225 AUD|High: $43,126 AUD|Avg: $30,546 AUD|-12.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 6$24,225 AUD
Retailer 7$24,567 AUD
Retailer 2$25,234 AUD
Retailer 3$25,319 AUD
Retailer 5$26,564 AUD
Retailer 8$26,722 AUD
Retailer 10$29,204 AUD
Retailer 9$29,705 AUD
Retailer 4$31,184 AUD
MOH London$37,861 AUD

29 data points across 10 retailers

10 retailers$24,225 AUD to $37,861 AUD

A
Cheapest Retailer
-
$24,225 AUD
$17,017 USD
A
Retailer 2
-
$24,567 AUD
$17,257 USD
View
A
Retailer 3
-
$25,234 AUD
£13,957 GBP
View
A
Retailer 4
-
$25,319 AUD
$17,785 USD
View
A
Retailer 5
-
$26,564 AUD
£14,693 GBP
View
Retailer 6
-
$26,722 AUD
$18,771 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$29,204 AUD
€19,537 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
-
$29,705 AUD
$20,866 USD
View
B+
Retailer 9
-
$31,184 AUD
ZAR 353,872 ZAR
View
Most Expensive
B+
MOH London
F650EBF77 · Oct 26
$37,861 AUD
£20,941 GBP
View
9 more retailers have this diamond
Prices start from $24,225 AUDSave up to $13,635 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
3.09ct Round
$24,225 AUD