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 $216 USD
As of October 29, 2026
Save $894 USD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,128 USD 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 28, 2026, with a 414% 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
Color
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 × 4.65 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 29
Current: $1,128 USD|Low: $216 USD|High: $1,143 USD|Avg: $656 USD|+4.2%
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
October 29, 2026
Retailer 3$216 USD
Retailer 5$310 USD
Retailer 6$365 USD
Retailer 9$389 USD
Retailer 13$486 USD
Retailer 12$488 USD
Retailer 2$510 USD
Retailer 10$560 USD
Retailer 14$706 USD
Retailer 11$866 USD
Retailer 7$1,012 USD
Retailer 8$1,040 USD
Retailer 4$1,110 USD
Flawless Fine Jewelry$1,128 USD

29 data points across 14 retailers

13 retailers$216 USD to $1,110 USD

A
Cheapest Retailer
-
$216 USD
A
Retailer 2
-
$310 USD
View
A
Retailer 3
-
$389 USD
ZAR 6,288 ZAR
View
A
Retailer 4
-
$486 USD
A$748 AUD
View
A
Retailer 5
-
$488 USD
View
B+
Retailer 6
-
$510 USD
€486 EUR
View
B+
Retailer 7
-
$560 USD
A$862 AUD
View
B+
Retailer 8
-
$706 USD
CA$980 CAD
View
B+
Retailer 9
-
$866 USD
View
B
Retailer 10
-
$1,012 USD
£797 GBP
View
B
Retailer 11
-
$1,040 USD
View
B
Retailer 12
-
$1,110 USD
View
Most Expensive
Flawless Fine Jewelry
4E2FC57DB · Oct 19
$1,128 USD
£888 GBP
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from $216 USDSave up to $894 USD

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
$216 USD