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Cushion|Lab Grown|IGI

1.09ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG840658745

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840658745

Diamond specifications and retailer prices

From $384 AUD
$270 USD
As of November 1, 2026
Save $451 AUD (54%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,936 AUD at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840658745 or 840658745. Listed at 3 retailers as of November 1, 2026, with a 117% 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

1.09
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840658745
Dimensions7.24 × 5.33 × 3.58 mm
L/W Ratio1.36
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.24 mm5.33 mm1.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840658745
Side View
Table 59.0%Crown 36.2°Girdle: MED-THKPavilion 35.5°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,936 AUD|Low: $384 AUD|High: $1,950 AUD|Avg: $1,205 AUD|-0.7%
Rare Carat
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$384 AUD
Retailer 2$836 AUD
Rare Carat$1,936 AUD

28 data points across 3 retailers

3 retailers$384 AUD to $836 AUD

A
Cheapest Retailer
-
$384 AUD
$270 USD
Final sale: no returns
A
Retailer 2
-
$836 AUD
£462 GBP
View
Most Expensive
Rare Carat
840658745 · Oct 19
$1,936 AUD
$1,360 USD
View
Price last confirmed 14 days ago
2 more retailers have this diamond
Prices start from $384 AUDSave up to $451 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
1.09ct Cushion
$384 AUD