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Cushion|Lab Grown|IGI

1.53ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG801626413

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG801626413

Diamond specifications and retailer prices

From $1,021 AUD
$717 USD
As of October 30, 2026
Save $1,744 AUD (63%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,299 AUD at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.53ct lab-grown cushion diamond

This 1.53ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG801626413 or 801626413. Listed at 3 retailers as of October 29, 2026, with a 171% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801626413
Dimensions6.59 × 6.55 × 4.15 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
6.59 mm6.55 mm1.53 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801626413
Side View
Table 64.0%Crown 33.6°Girdle: MED-THKPavilion 35.1°Culet: NoneDepth 63.4%

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 30
Current: $4,299 AUD|Low: $954 AUD|High: $4,442 AUD|Avg: $2,007 AUD|-2.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5$988 AUD
Retailer 3$1,021 AUD
Retailer 4$1,127 AUD
Retailer 7$1,416 AUD
Retailer 6$1,419 AUD
Retailer 8$2,503 AUD
Retailer 9$2,727 AUD
Retailer 2$2,764 AUD
Brilliant Earth$4,299 AUD

19 data points across 9 retailers

3 retailers$1,021 AUD to $2,764 AUD

A
Cheapest Retailer
-
$1,021 AUD
$717 USD
B+
Retailer 2
-
$2,764 AUD
£1,529 GBP
View
Most Expensive
Brilliant Earth
19659915A · Oct 8
$4,299 AUD
$3,020 USD
View
Price last confirmed 23 days ago
2 more retailers have this diamond
Prices start from $1,021 AUDSave up to $1,744 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
1.53ct Cushion
$1,021 AUD