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Cushion|Lab Grown|IGI

1.53ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG512220405

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG512220405

Diamond specifications and retailer prices

From $432 SGD
As of November 6, 2026
Save $983 SGD (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,414 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.53ct lab-grown cushion diamond

This 1.53ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512220405 or 512220405. Listed at 5 retailers as of November 2, 2026, with prices from $432 to $1,414, a $983 spread on the same certified stone. MOH London lists it at $1,414. 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

1.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220405
Dimensions6.83 × 6.65 × 4.39 mm
L/W Ratio1.03
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
6.83 mm6.65 mm1.53 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220405
Side View
Table 63.0%Crown 35.8°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 66.0%

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: Nov 6
Current: $1,414 SGD|Low: $432 SGD|High: $1,431 SGD|Avg: $836 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$432 SGD
Retailer 3$522 SGD
Retailer 5$633 SGD
Retailer 2$650 SGD
Retailer 6$1,353 SGD
MOH London$1,414 SGD

36 data points across 6 retailers

5 retailers$432 SGD to $1,414 SGD

B+
Cheapest Retailer
-
$432 SGD
A
Retailer 2
-
$522 SGD
View
A
Retailer 3
-
$650 SGD
View
B
Retailer 4
-
$1,353 SGD
View
Most Expensive
B
MOH London
LG512220405 · Nov 2
$1,414 SGD
£869 GBP
View
4 more retailers have this diamond
Prices start from $432 SGDSave up to $983 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
1.53ct Cushion
$432 SGD