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Round|Natural|IGI

3.11ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 654416739

Shape and cutting style on the report: Round brilliant

Certificate IGI 654416739

Diamond specifications and retailer prices

From $14,419 AUD
As of November 4, 2026
Save $7,511 AUD (34%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $21,930 AUD at MOH London · As of November 4, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 654416739. Listed at 6 retailers as of November 4, 2026, with prices from $14,419 to $21,930, a $7,511 spread on the same certified stone. MOH London lists it at $21,930. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 654416739
Dimensions9.40 × 9.47 × 5.71 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.40 mm9.47 mm3.11 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 654416739
Side View
Table 59.0%Crown 33.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.6%

Caratlytics Score

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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 4
Current: $21,930 AUD|Low: $11,351 AUD|High: $22,253 AUD|Avg: $15,925 AUD|+7.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 9$11,351 AUD
Retailer 7$14,368 AUD
Retailer 3$14,419 AUD
Retailer 4$14,475 AUD
Retailer 5$15,565 AUD
Retailer 8$17,039 AUD
Retailer 2$17,602 AUD
Retailer 6$17,959 AUD
MOH London$21,930 AUD

20 data points across 9 retailers

6 retailers$14,419 AUD to $21,930 AUD

A
Cheapest Retailer
-
$14,419 AUD
A
Retailer 2
-
$14,475 AUD
View
Retailer 3
-
$15,565 AUD
View
Price last confirmed 45 days ago
A
Retailer 4
-
$17,602 AUD
View
Retailer 5
-
$17,959 AUD
View
Price last confirmed 45 days ago
Most Expensive
A
MOH London
E3BA64A67 · Nov 4
$21,930 AUD
£12,088 GBP
View
5 more retailers have this diamond
Prices start from $14,419 AUDSave up to $7,511 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
$14,419 AUD