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Round|Lab Grown|IGI

1.39ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG786642414

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786642414

Diamond specifications and retailer prices

From $268 AUD
$188 USD
As of October 29, 2026
Save $1,296 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,564 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.39ct lab-grown round diamond

This 1.39ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG786642414 or 786642414. Listed at 14 retailers as of October 29, 2026, with prices from $268 to $1,564, a $1,296 spread on the same certified stone. MOH London lists it at $1,564. 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

1.39
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786642414
Dimensions7.21 × 7.17 × 4.40 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.21 mm7.17 mm1.39 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786642414
Side View
Table 58.0%Crown 31.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
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: Oct 29
Current: $1,564 AUD|Low: $258 AUD|High: $1,602 AUD|Avg: $682 AUD|-2.4%
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
October 30, 2026
Retailer 11$268 AUD
Retailer 13$300 AUD
Retailer 5$333 AUD
Retailer 7$563 AUD
Retailer 3$585 AUD
Retailer 6$602 AUD
Retailer 2$650 AUD
Retailer 4$678 AUD
Retailer 12$693 AUD
Retailer 9$726 AUD
Retailer 10$875 AUD
Retailer 8$968 AUD
MOH London$1,564 AUD

34 data points across 13 retailers

14 retailers$268 AUD to $1,564 AUD

A
Cheapest Retailer
-
$268 AUD
$188 USD
A
Retailer 2
-
$300 AUD
$211 USD
View
Final sale: no returns
A
Retailer 3
-
$333 AUD
$234 USD
View
A
Retailer 4
-
$563 AUD
€377 EUR
View
B+
Retailer 5
-
$585 AUD
$411 USD
View
A
Retailer 6
-
$602 AUD
£333 GBP
View
A
Retailer 7
-
$650 AUD
£359 GBP
View
B+
Retailer 8
-
$678 AUD
$476 USD
View
B+
Retailer 9
-
$693 AUD
$487 USD
View
B+
Retailer 10
-
$726 AUD
$510 USD
View
B
Retailer 11
-
$875 AUD
$615 USD
View
B+
Retailer 12
-
$968 AUD
$680 USD
View
Retailer 13
-
$982 AUD
$690 USD
View
Price last confirmed 45 days ago
Most Expensive
B
MOH London
LG786642414 · Oct 29
$1,564 AUD
£865 GBP
View
13 more retailers have this diamond
Prices start from $268 AUDSave up to $1,296 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
1.39ct Round
$268 AUD