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Cushion|Lab Grown|IGI

1.03ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG818662845

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

Certificate IGI LG818662845

Diamond specifications and retailer prices

From $512 AUD
$360 USD
As of October 30, 2026
Save $1,780 AUD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,292 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.03ct lab-grown cushion diamond

This 1.03ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818662845 or 818662845. Listed at 15 retailers as of October 30, 2026, with prices from $512 to $2,292, a $1,780 spread on the same certified stone. Brilliant Earth lists it at $2,292. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818662845
Dimensions6.09 × 6.09 × 3.81 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.09 mm6.09 mm1.03 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818662845
Side View
Table 60.0%Crown 34.6°Girdle: MediumPavilion 39.1°Culet: NoneDepth 62.6%

Caratlytics Score

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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: $2,292 AUD|Low: $512 AUD|High: $3,103 AUD|Avg: $1,347 AUD|-26.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 15$512 AUD
Retailer 2$601 AUD
Retailer 7$635 AUD
Retailer 13$790 AUD
Retailer 14$885 AUD
Retailer 3$920 AUD
Retailer 9$925 AUD
Retailer 11$974 AUD
Retailer 8$1,013 AUD
Retailer 5$1,014 AUD
Retailer 6$1,872 AUD
Retailer 4$1,887 AUD
Retailer 12$2,250 AUD
Retailer 10$2,285 AUD
Brilliant Earth$2,292 AUD

37 data points across 15 retailers

15 retailers$512 AUD to $2,292 AUD

A
Cheapest Retailer
-
$512 AUD
$360 USD
Final sale: no returns
A
Retailer 2
-
$601 AUD
£333 GBP
View
Retailer 3
-
$635 AUD
$446 USD
View
Price last confirmed 18 days ago
A
Retailer 4
-
$790 AUD
$555 USD
View
A
Retailer 5
-
$885 AUD
$622 USD
View
A
Retailer 6
-
$920 AUD
$646 USD
View
A
Retailer 7
-
$925 AUD
€619 EUR
View
A
Retailer 8
-
$974 AUD
ZAR 11,058 ZAR
View
A
Retailer 9
-
$1,013 AUD
£560 GBP
View
A
Retailer 10
-
$1,014 AUD
$712 USD
View
Retailer 11
-
$1,872 AUD
$1,315 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
$1,887 AUD
$1,326 USD
View
B
Retailer 13
-
$2,250 AUD
$1,581 USD
View
B
Retailer 14
-
$2,285 AUD
£1,264 GBP
View
Most Expensive
B
Brilliant Earth
21242374A · Oct 30
$2,292 AUD
$1,610 USD
View
14 more retailers have this diamond
Prices start from $512 AUDSave up to $1,780 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
1.03ct Cushion
$512 AUD