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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 $511 USD
As of October 28, 2026
Save $1,719 USD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,230 USD 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 28, 2026, with prices from $511 to $2,230, a $1,719 spread on the same certified stone. Brilliant Earth lists it at $2,230. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $2,230 USD|Low: $406 USD|High: $2,666 USD|Avg: $1,234 USD|-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 29, 2026
Retailer 14$511 USD
Retailer 12$576 USD
Retailer 15$689 USD
Retailer 5$708 USD
Retailer 7$710 USD
Retailer 4$785 USD
Retailer 9$835 USD
Retailer 2$938 USD
Retailer 11$974 USD
Retailer 13$1,274 USD
Retailer 6$1,396 USD
Retailer 8$1,844 USD
Retailer 3$1,853 USD
Retailer 16$2,013 USD
Retailer 10$2,093 USD
Brilliant Earth$2,230 USD

39 data points across 16 retailers

17 retailers$511 USD to $2,230 USD

A
Cheapest Retailer
-
$511 USD
Final sale: no returns
A
Retailer 2
-
$576 USD
HK$4,500 HKD
View
A
Retailer 3
-
$689 USD
View
A
Retailer 4
-
$708 USD
View
A
Retailer 5
-
$710 USD
View
A
Retailer 6
-
$785 USD
View
A
Retailer 7
-
$835 USD
€795 EUR
View
B+
Retailer 8
-
$938 USD
£739 GBP
View
B+
Retailer 9
-
$974 USD
ZAR 15,729 ZAR
View
B+
Retailer 10
-
$1,274 USD
View
Retailer 11
-
$1,308 USD
View
Price last confirmed 50 days ago
B+
Retailer 12
-
$1,396 USD
SGD 1,886 SGD
View
Retailer 13
-
$1,844 USD
£1,452 GBP
View
Price last confirmed 13 days ago
B
Retailer 14
-
$1,853 USD
View
B
Retailer 15
-
$2,013 USD
View
B
Retailer 16
-
$2,093 USD
£1,648 GBP
View
Most Expensive
B
Brilliant Earth
21086526A · Oct 29
$2,230 USD
View
16 more retailers have this diamond
Prices start from $511 USDSave up to $1,719 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
1.05ct Cushion
$511 USD