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Cushion|Lab Grown|IGI

1.50ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG784633426

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG784633426

Diamond specifications and retailer prices

From $281 AUD
As of November 6, 2026
Save $1,176 AUD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,457 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG784633426 or 784633426. Listed at 14 retailers as of November 5, 2026, with prices from $281 to $1,457, a $1,176 spread on the same certified stone. MOH London lists it at $1,457. 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

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784633426
Dimensions8.04 × 5.87 × 3.75 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.04 mm5.87 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784633426
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 63.9%

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: $1,457 AUD|Low: $281 AUD|High: $1,557 AUD|Avg: $820 AUD|-2.7%
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
November 6, 2026
Retailer 8$281 AUD
Retailer 6$397 AUD
Retailer 2$517 AUD
Retailer 7$549 AUD
Retailer 9$556 AUD
Retailer 4$589 AUD
Retailer 11$656 AUD
Retailer 5$694 AUD
Retailer 10$793 AUD
Retailer 13$1,023 AUD
Retailer 3$1,237 AUD
Retailer 12$1,339 AUD
MOH London$1,457 AUD

44 data points across 13 retailers

14 retailers$281 AUD to $1,457 AUD

A
Cheapest Retailer
-
$281 AUD
Final sale: no returns
A
Retailer 2
-
$354 AUD
View
A
Retailer 3
-
$397 AUD
View
A
Retailer 4
-
$517 AUD
View
A
Retailer 5
-
$549 AUD
View
B+
Retailer 6
-
$556 AUD
View
Retailer 7
-
$589 AUD
View
Price last confirmed 23 days ago
A
Retailer 8
-
$656 AUD
View
Retailer 9
-
$694 AUD
View
Price last confirmed 11 days ago
A
Retailer 10
-
$793 AUD
View
B+
Retailer 11
-
$1,023 AUD
View
Retailer 12
-
$1,237 AUD
View
Price last confirmed 16 days ago
B
Retailer 13
-
$1,339 AUD
View
Most Expensive
B
MOH London
LG784633426 · Nov 5
$1,457 AUD
£788 GBP
View
13 more retailers have this diamond
Prices start from $281 AUDSave up to $1,176 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
1.50ct Cushion
$281 AUD