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Cushion|Lab Grown|IGI

0.40ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG749509394

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG749509394

Diamond specifications and retailer prices

From $307 AUD
$216 USD
As of October 30, 2026
Save $1,173 AUD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,605 AUD at Flawless Fine Jewelry · As of October 19, 2026
View at Flawless Fine Jewelry

About this 0.4ct lab-grown cushion diamond

This 0.4ct lab-grown cushion sits in the sub-half-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG749509394 or 749509394. Listed at 13 retailers as of October 30, 2026, with a 381% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.40
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749509394
Dimensions4.65 × 3.90 × 2.64 mm
L/W Ratio1.19
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
4.65 mm3.90 mm0.40 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749509394
Side View
Table 61.0%Crown 34.6°Girdle: THN-STKPavilion 36.4°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,605 AUD|Low: $307 AUD|High: $1,627 AUD|Avg: $939 AUD|-1.3%
Flawless Fine Jewelry
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
November 1, 2026
Retailer 4$307 AUD
Retailer 5$441 AUD
Retailer 6$520 AUD
Retailer 10$554 AUD
Retailer 14$692 AUD
Retailer 13$695 AUD
Retailer 7$720 AUD
Retailer 11$798 AUD
Retailer 3$1,004 AUD
Retailer 12$1,233 AUD
Retailer 2$1,434 AUD
Retailer 8$1,481 AUD
Retailer 9$1,481 AUD
Flawless Fine Jewelry$1,605 AUD

30 data points across 14 retailers

13 retailers$307 AUD to $1,481 AUD

A
Cheapest Retailer
-
$307 AUD
$216 USD
A
Retailer 2
-
$441 AUD
$310 USD
View
A
Retailer 3
-
$554 AUD
ZAR 6,288 ZAR
View
A
Retailer 4
-
$692 AUD
View
A
Retailer 5
-
$695 AUD
$488 USD
View
B+
Retailer 6
-
$720 AUD
€482 EUR
View
B+
Retailer 7
-
$798 AUD
View
B+
Retailer 8
-
$1,004 AUD
CA$980 CAD
View
B+
Retailer 9
-
$1,233 AUD
$866 USD
View
B
Retailer 10
-
$1,434 AUD
£793 GBP
View
B
Retailer 11
-
$1,481 AUD
$1,040 USD
View
B
Retailer 12
-
$1,481 AUD
$1,040 USD
View
Most Expensive
Flawless Fine Jewelry
4E2FC57DB · Oct 19
$1,605 AUD
£888 GBP
View
Price last confirmed 13 days ago
12 more retailers have this diamond
Prices start from $307 AUDSave up to $1,173 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
0.40ct Cushion
$307 AUD