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Cushion|Lab Grown|IGI

1.35ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG614336597

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG614336597

Diamond specifications and retailer prices

From $330 AUD
As of November 6, 2026
Save $1,381 AUD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,712 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.35ct lab-grown cushion diamond

This 1.35ct lab-grown cushion 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 LG614336597 or 614336597. Listed at 11 retailers as of November 5, 2026, with prices from $330 to $1,712, a $1,381 spread on the same certified stone. MOH London lists it at $1,712. 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

1.35
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614336597
Dimensions6.47 × 6.40 × 4.33 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
6.47 mm6.40 mm1.35 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614336597
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 67.7%

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: Nov 6
Current: $1,712 AUD|Low: $194 AUD|High: $1,736 AUD|Avg: $767 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$194 AUD
Retailer 9$330 AUD
Retailer 6$367 AUD
Retailer 2$619 AUD
Retailer 7$636 AUD
Retailer 3$667 AUD
Retailer 8$840 AUD
Retailer 4$1,012 AUD
Retailer 5$1,252 AUD
MOH London$1,712 AUD

44 data points across 10 retailers

11 retailers$330 AUD to $1,712 AUD

A
Cheapest Retailer
-
$330 AUD
Final sale: no returns
Retailer 2
-
$367 AUD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$619 AUD
View
A
Retailer 4
-
$636 AUD
View
A
Retailer 5
-
$667 AUD
View
A
Retailer 6
-
$712 AUD
View
B+
Retailer 7
-
$840 AUD
View
B+
Retailer 8
-
$1,012 AUD
View
B
Retailer 9
-
$1,252 AUD
View
B
Retailer 10
-
$1,256 AUD
View
Most Expensive
B
MOH London
LG614336597 · Nov 5
$1,712 AUD
£926 GBP
View
10 more retailers have this diamond
Prices start from $330 AUDSave up to $1,381 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
1.35ct Cushion
$330 AUD