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Cushion|Lab Grown|IGI

1.05ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG818640096

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818640096

Diamond specifications and retailer prices

From $727 AUD
$511 USD
As of October 30, 2026
Save $2,447 AUD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,175 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.05ct lab-grown cushion diamond

This 1.05ct 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 LG818640096 or 818640096. Listed at 17 retailers as of October 29, 2026, with prices from $727 to $3,175, a $2,447 spread on the same certified stone. Brilliant Earth lists it at $3,175. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818640096
Dimensions6.97 × 5.36 × 3.58 mm
L/W Ratio1.30
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
6.97 mm5.36 mm1.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818640096
Side View
Table 65.0%Crown 34.7°Girdle: MED-THKPavilion 39.6°Culet: NoneDepth 66.8%

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: $3,175 AUD|Low: $578 AUD|High: $3,795 AUD|Avg: $1,756 AUD|-0.4%
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
Retailer 16
October 30, 2026
Retailer 14$727 AUD
Retailer 12$820 AUD
Retailer 15$981 AUD
Retailer 5$1,008 AUD
Retailer 7$1,011 AUD
Retailer 4$1,118 AUD
Retailer 9$1,188 AUD
Retailer 2$1,335 AUD
Retailer 11$1,386 AUD
Retailer 13$1,814 AUD
Retailer 6$1,987 AUD
Retailer 8$2,625 AUD
Retailer 3$2,637 AUD
Retailer 16$2,866 AUD
Retailer 10$2,980 AUD
Brilliant Earth$3,175 AUD

40 data points across 16 retailers

17 retailers$727 AUD to $3,175 AUD

A
Cheapest Retailer
-
$727 AUD
$511 USD
Final sale: no returns
A
Retailer 2
-
$820 AUD
HK$4,500 HKD
View
A
Retailer 3
-
$981 AUD
$689 USD
View
A
Retailer 4
-
$1,008 AUD
$708 USD
View
A
Retailer 5
-
$1,011 AUD
$710 USD
View
A
Retailer 6
-
$1,118 AUD
$785 USD
View
A
Retailer 7
-
$1,188 AUD
€795 EUR
View
B+
Retailer 8
-
$1,335 AUD
£739 GBP
View
B+
Retailer 9
-
$1,386 AUD
ZAR 15,729 ZAR
View
B+
Retailer 10
-
$1,814 AUD
$1,274 USD
View
Retailer 11
-
$1,862 AUD
$1,308 USD
View
Price last confirmed 51 days ago
B+
Retailer 12
-
$1,987 AUD
SGD 1,886 SGD
View
Retailer 13
-
$2,625 AUD
£1,452 GBP
View
Price last confirmed 14 days ago
B
Retailer 14
-
$2,637 AUD
$1,853 USD
View
B
Retailer 15
-
$2,866 AUD
$2,013 USD
View
B
Retailer 16
-
$2,980 AUD
£1,648 GBP
View
Most Expensive
B
Brilliant Earth
21086526A · Oct 29
$3,175 AUD
$2,230 USD
View
16 more retailers have this diamond
Prices start from $727 AUDSave up to $2,447 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
1.05ct Cushion
$727 AUD