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Cushion|Lab Grown|IGI

1.31ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG840634921

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634921

Diamond specifications and retailer prices

From $595 SGD
$464 USD
As of October 28, 2026
Save $3,199 SGD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,794 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.31ct lab-grown cushion diamond

This 1.31ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634921 or 840634921. Listed at 14 retailers as of October 28, 2026, with prices from $595 to $3,794, a $3,199 spread on the same certified stone. Brilliant Earth lists it at $3,794. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634921
Dimensions7.59 × 5.48 × 3.81 mm
L/W Ratio1.39
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
7.59 mm5.48 mm1.31 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634921
Side View
Table 61.0%Crown 35.2°Girdle: STK-THKPavilion 35.8°Culet: NoneDepth 69.5%

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 28
Current: $1,079 SGD|Low: $595 SGD|High: $3,036 SGD|Avg: $1,577 SGD|-13.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 13$595 SGD
Retailer 7$700 SGD
Retailer 9$993 SGD
Retailer 2$1,039 SGD
Retailer 6$1,055 SGD
Retailer 1$1,079 SGD
Retailer 8$1,130 SGD
Retailer 11$1,232 SGD
Retailer 3$2,087 SGD
Retailer 12$2,159 SGD
Retailer 10$2,420 SGD
Retailer 4$2,493 SGD
Retailer 5$3,036 SGD

13 data points across 13 retailers

14 retailers$595 SGD to $3,794 SGD

A
Cheapest Retailer
-
$595 SGD
$464 USD
Final sale: no returns
A
Retailer 2
-
$700 SGD
£430 GBP
View
A
Retailer 3
-
$993 SGD
$775 USD
View
A
Retailer 4
-
$1,039 SGD
$811 USD
View
A
Retailer 5
-
$1,055 SGD
€784 EUR
View
A
Retailer 6
-
$1,079 SGD
£663 GBP
View
A
Retailer 7
-
$1,130 SGD
ZAR 14,249 ZAR
View
A
Retailer 8
-
$1,232 SGD
$961 USD
View
B+
Retailer 9
-
$2,087 SGD
View
B+
Retailer 10
-
$2,159 SGD
$1,684 USD
View
B
Retailer 11
-
$2,420 SGD
£1,487 GBP
View
Retailer 12
-
$2,493 SGD
$1,945 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$3,036 SGD
$2,369 USD
View
Most Expensive
B
Brilliant Earth
21861646A · Oct 29
$3,794 SGD
$2,960 USD
View
13 more retailers have this diamond
Prices start from $595 SGDSave up to $3,199 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
1.31ct Cushion
$595 SGD