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Round|Natural|IGI

1.09ct E IF Round Natural Diamond

EX • E/IF • IGI 819640375

Shape and cutting style on the report: Round brilliant

Certificate IGI 819640375

Diamond specifications and retailer prices

From $5,834 AUD
SGD 5,538 SGD
As of October 31, 2026
Save $6,482 AUD (53%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $12,316 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 819640375. Listed at 5 retailers as of October 31, 2026, with prices from $5,834 to $12,316, a $6,482 spread on the same certified stone. MOH London lists it at $12,316. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 819640375
Dimensions6.53 × 6.57 × 4.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.53 mm6.57 mm1.09 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 819640375
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 41.2°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 31
Current: $12,316 AUD|Low: $5,834 AUD|High: $13,068 AUD|Avg: $9,064 AUD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4$5,834 AUD
Retailer 3$6,927 AUD
Retailer 5$7,956 AUD
Retailer 2$8,656 AUD
MOH London$12,316 AUD

27 data points across 5 retailers

5 retailers$5,834 AUD to $12,316 AUD

A
Cheapest Retailer
-
$5,834 AUD
SGD 5,538 SGD
A
Retailer 2
-
$6,927 AUD
£3,832 GBP
View
A
Retailer 3
-
$7,956 AUD
$5,589 USD
View
A
Retailer 4
-
$8,656 AUD
€5,791 EUR
View
Most Expensive
A
MOH London
CA1711FE5 · Nov 1
$12,316 AUD
£6,812 GBP
View
4 more retailers have this diamond
Prices start from $5,834 AUDSave up to $6,482 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
1.09ct Round
$5,834 AUD