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3.11ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 506186997

Shape and cutting style on the report: Round brilliant

Certificate IGI 506186997

Diamond specifications and retailer prices

From $23,491 AUD
$16,463 USD
As of November 2, 2026
Save $18,926 AUD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $42,417 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 3.11ct natural round diamond

This 3.11ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 506186997. Listed at 13 retailers as of November 2, 2026, with prices from $23,491 to $42,417, a $18,926 spread on the same certified stone. MOH London lists it at $42,417. 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

3.11
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 506186997
Dimensions9.32 × 9.25 × 5.84 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.32 mm9.25 mm3.11 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 506186997
Side View
Table 55.0%Crown 34.9°Girdle: MediumPavilion 40.8°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: Nov 2
Current: $42,417 AUD|Low: $22,762 AUD|High: $42,928 AUD|Avg: $29,143 AUD|+2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 11$23,491 AUD
Retailer 7$23,694 AUD
Retailer 8$24,968 AUD
Retailer 5$25,083 AUD
Retailer 12$25,126 AUD
Retailer 9$26,027 AUD
Retailer 13$27,160 AUD
Retailer 14$28,518 AUD
Retailer 4$29,423 AUD
Retailer 3$30,554 AUD
Retailer 2$31,676 AUD
Retailer 6$33,406 AUD
Retailer 10$38,476 AUD
MOH London$42,417 AUD

31 data points across 14 retailers

13 retailers$23,491 AUD to $42,417 AUD

A
Cheapest Retailer
-
$23,491 AUD
$16,463 USD
A
Retailer 2
-
$23,694 AUD
$16,605 USD
View
A
Retailer 3
-
$24,968 AUD
$17,498 USD
View
A
Retailer 4
-
$25,083 AUD
$17,579 USD
View
A
Retailer 5
-
$25,126 AUD
$17,609 USD
View
A
Retailer 6
-
$26,027 AUD
$18,240 USD
View
Final sale: no returns
A
Retailer 7
-
$27,160 AUD
$19,034 USD
View
B+
Retailer 8
-
$28,518 AUD
$19,986 USD
View
B+
Retailer 9
-
$29,423 AUD
$20,620 USD
View
B+
Retailer 10
-
$30,554 AUD
$21,413 USD
View
B+
Retailer 11
-
$31,676 AUD
€21,142 EUR
View
B
Retailer 12
-
$38,476 AUD
$26,965 USD
View
Most Expensive
B
MOH London
1A17AD9C3 · Nov 2
$42,417 AUD
£23,407 GBP
View
12 more retailers have this diamond
Prices start from $23,491 AUDSave up to $18,926 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
3.11ct Round
$23,491 AUD