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Cushion|Lab Grown|IGI

1.51ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG537240878

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG537240878

Diamond specifications and retailer prices

From $265 SGD
As of November 6, 2026
Save $1,206 SGD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,471 SGD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG537240878 or 537240878. Listed at 16 retailers as of November 6, 2026, with prices from $265 to $1,471, a $1,206 spread on the same certified stone. Reve Diamonds lists it at $1,471. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG537240878
Dimensions7.72 × 5.99 × 3.75 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizePointed
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
7.72 mm5.99 mm1.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG537240878
Side View
Table 60.5%Crown 37.4°Girdle: MED-STKPavilion 31.3°Culet: NoneDepth 62.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $678 SGD|Low: $265 SGD|High: $1,396 SGD|Avg: $665 SGD
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
November 7, 2026
Retailer 4$265 SGD
Retailer 2$295 SGD
Retailer 13$397 SGD
Retailer 9$486 SGD
Retailer 8$527 SGD
Retailer 5$587 SGD
Retailer 11$647 SGD
Retailer 1$678 SGD
Retailer 10$702 SGD
Retailer 3$723 SGD
Retailer 6$1,089 SGD
Retailer 12$1,166 SGD
Retailer 7$1,371 SGD

44 data points across 13 retailers

16 retailers$265 SGD to $1,471 SGD

A
Cheapest Retailer
-
$265 SGD
Final sale: no returns
A
Retailer 2
-
$295 SGD
View
B+
Retailer 3
-
$397 SGD
View
A
Retailer 4
-
$486 SGD
View
A
Retailer 5
-
$527 SGD
View
A
Retailer 6
-
$575 SGD
View
A
Retailer 7
-
$587 SGD
View
A
Retailer 8
-
$647 SGD
View
A
Retailer 9
-
$678 SGD
View
A
Retailer 10
-
$702 SGD
View
B+
Retailer 11
-
$723 SGD
View
B
Retailer 12
-
$1,018 SGD
View
B+
Retailer 13
-
$1,089 SGD
View
B
Retailer 14
-
$1,166 SGD
View
B
Retailer 15
-
$1,371 SGD
View
Most Expensive
B
Reve Diamonds
DD937C927 · Nov 6
$1,471 SGD
$1,148 USD
View
15 more retailers have this diamond
Prices start from $265 SGDSave up to $1,206 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
1.51ct Cushion
$265 SGD