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Cushion|Lab Grown|IGI

1.51ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG529246828

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG529246828

Diamond specifications and retailer prices

From $324 SGD
As of November 6, 2026
Save $1,313 SGD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,637 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 LG529246828 or 529246828. Listed at 14 retailers as of November 6, 2026, with prices from $324 to $1,637, a $1,313 spread on the same certified stone. Reve Diamonds lists it at $1,637. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529246828
Dimensions6.73 × 6.47 × 4.22 mm
L/W Ratio1.04
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
6.73 mm6.47 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529246828
Side View
Table 56.5%Crown 36.6°Girdle: MED-THKPavilion 35.8°Culet: NoneDepth 65.2%

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: Nov 6
Current: $764 SGD|Low: $324 SGD|High: $1,637 SGD|Avg: $810 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
Reve Diamonds
November 7, 2026
Retailer 4$324 SGD
Retailer 5$360 SGD
Retailer 8$460 SGD
Retailer 13$484 SGD
Retailer 10$575 SGD
Retailer 3$593 SGD
Retailer 9$664 SGD
Retailer 12$683 SGD
Retailer 1$764 SGD
Retailer 2$1,223 SGD
Retailer 11$1,230 SGD
Retailer 6$1,298 SGD
Retailer 7$1,433 SGD
Reve Diamonds$1,637 SGD

37 data points across 14 retailers

14 retailers$324 SGD to $1,637 SGD

A
Cheapest Retailer
-
$324 SGD
Final sale: no returns
A
Retailer 2
-
$360 SGD
View
A
Retailer 3
-
$460 SGD
View
B+
Retailer 4
-
$484 SGD
View
A
Retailer 5
-
$575 SGD
View
A
Retailer 6
-
$593 SGD
View
A
Retailer 7
-
$664 SGD
View
A
Retailer 8
-
$683 SGD
View
B+
Retailer 9
-
$764 SGD
View
B
Retailer 10
-
$1,223 SGD
View
B
Retailer 11
-
$1,230 SGD
View
B
Retailer 12
-
$1,298 SGD
View
B
Retailer 13
-
$1,433 SGD
View
Most Expensive
B
Reve Diamonds
DC166055E · Nov 6
$1,637 SGD
$1,278 USD
View
13 more retailers have this diamond
Prices start from $324 SGDSave up to $1,313 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
$324 SGD