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Cushion|Lab Grown|IGI

1.09ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG818663196

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG818663196

Diamond specifications and retailer prices

From $483 SGD
$378 USD
As of October 30, 2026
Save $2,022 SGD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,506 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818663196 or 818663196. Listed at 15 retailers as of October 30, 2026, with prices from $483 to $2,506, a $2,022 spread on the same certified stone. Brilliant Earth lists it at $2,506. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663196
Dimensions5.98 × 5.97 × 4.01 mm
L/W Ratio1.00
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
5.98 mm5.97 mm1.09 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663196
Side View
Table 60.0%Crown 35.2°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 67.2%

Caratlytics Score

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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 30
Current: $2,506 SGD|Low: $483 SGD|High: $2,902 SGD|Avg: $1,307 SGD|-13.7%
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
November 1, 2026
Retailer 15$483 SGD
Retailer 2$567 SGD
Retailer 6$601 SGD
Retailer 10$812 SGD
Retailer 3$865 SGD
Retailer 9$866 SGD
Retailer 14$878 SGD
Retailer 12$922 SGD
Retailer 5$938 SGD
Retailer 8$954 SGD
Retailer 4$1,779 SGD
Retailer 7$1,783 SGD
Retailer 13$2,090 SGD
Retailer 11$2,161 SGD
Brilliant Earth$2,506 SGD

35 data points across 15 retailers

15 retailers$483 SGD to $2,506 SGD

A
Cheapest Retailer
-
$483 SGD
$378 USD
Final sale: no returns
A
Retailer 2
-
$567 SGD
£349 GBP
View
A
Retailer 3
-
$601 SGD
$470 USD
View
A
Retailer 4
-
$812 SGD
$635 USD
View
A
Retailer 5
-
$865 SGD
$677 USD
View
A
Retailer 6
-
$866 SGD
€645 EUR
View
A
Retailer 7
-
$878 SGD
$687 USD
View
A
Retailer 8
-
$922 SGD
ZAR 11,646 ZAR
View
A
Retailer 9
-
$938 SGD
$734 USD
View
A
Retailer 10
-
$954 SGD
£588 GBP
View
B+
Retailer 11
-
$1,779 SGD
$1,392 USD
View
Retailer 12
-
$1,783 SGD
$1,395 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
$2,090 SGD
$1,635 USD
View
B+
Retailer 14
-
$2,161 SGD
£1,331 GBP
View
Most Expensive
B
Brilliant Earth
21242470A · Oct 31
$2,506 SGD
$1,960 USD
View
14 more retailers have this diamond
Prices start from $483 SGDSave up to $2,022 SGD

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
$483 SGD