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Cushion|Lab Grown|IGI

1.21ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG840632427

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840632427

Diamond specifications and retailer prices

From $552 SGD
$431 USD
As of October 28, 2026
Save $2,729 SGD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,281 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.21ct lab-grown cushion diamond

This 1.21ct 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 LG840632427 or 840632427. Listed at 15 retailers as of October 28, 2026, with prices from $552 to $3,281, a $2,729 spread on the same certified stone. Brilliant Earth lists it at $3,281. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632427
Dimensions7.60 × 5.33 × 3.64 mm
L/W Ratio1.43
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
7.60 mm5.33 mm1.21 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632427
Side View
Table 60.0%Crown 35.1°Girdle: STK-THKPavilion 35°Culet: NoneDepth 68.3%

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: $3,281 SGD|Low: $552 SGD|High: $3,281 SGD|Avg: $1,590 SGD
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
October 29, 2026
Retailer 14$552 SGD
Retailer 9$650 SGD
Retailer 3$909 SGD
Retailer 11$923 SGD
Retailer 4$973 SGD
Retailer 8$985 SGD
Retailer 10$1,050 SGD
Retailer 13$1,068 SGD
Retailer 2$1,103 SGD
Retailer 5$1,945 SGD
Retailer 6$1,967 SGD
Retailer 15$2,013 SGD
Retailer 12$2,391 SGD
Retailer 7$2,836 SGD
Brilliant Earth$3,281 SGD

16 data points across 15 retailers

15 retailers$552 SGD to $3,281 SGD

A
Cheapest Retailer
-
$552 SGD
$431 USD
Final sale: no returns
A
Retailer 2
-
$650 SGD
£399 GBP
View
A
Retailer 3
-
$909 SGD
$709 USD
View
A
Retailer 4
-
$923 SGD
$720 USD
View
A
Retailer 5
-
$973 SGD
$759 USD
View
A
Retailer 6
-
$985 SGD
€732 EUR
View
A
Retailer 7
-
$1,050 SGD
ZAR 13,235 ZAR
View
A
Retailer 8
-
$1,068 SGD
$833 USD
View
A
Retailer 9
-
$1,103 SGD
£678 GBP
View
B+
Retailer 10
-
$1,945 SGD
View
Retailer 11
-
$1,967 SGD
$1,535 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$2,013 SGD
$1,570 USD
View
B+
Retailer 13
-
$2,391 SGD
£1,469 GBP
View
B
Retailer 14
-
$2,836 SGD
$2,213 USD
View
Most Expensive
B
Brilliant Earth
21826974A · Oct 29
$3,281 SGD
$2,560 USD
View
14 more retailers have this diamond
Prices start from $552 SGDSave up to $2,729 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
1.21ct Cushion
$552 SGD