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Cushion|Lab Grown|IGI

1.63ct E SI2 Cushion Lab Grown Diamond

EX • E/SI2 • IGI LG494175221

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG494175221

Diamond specifications and retailer prices

From $609 SGD
£374 GBP
As of October 30, 2026
Save $1,303 SGD (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,913 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.63ct lab-grown cushion diamond

This 1.63ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494175221 or 494175221. Listed at 8 retailers as of October 29, 2026, with prices from $609 to $1,913, a $1,303 spread on the same certified stone. MOH London lists it at $1,913. 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

1.63
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494175221
Dimensions6.80 × 6.47 × 4.74 mm
L/W Ratio1.05
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
6.80 mm6.47 mm1.63 ctE / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG494175221
Side View
Table 59.0%Crown 35.4°Girdle: STK-VTKPavilion 40.1°Culet: NoneDepth 73.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,913 SGD|Low: $607 SGD|High: $1,926 SGD|Avg: $1,031 SGD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$609 SGD
Retailer 7$623 SGD
Retailer 8$625 SGD
Retailer 4$777 SGD
Retailer 6$813 SGD
Retailer 9$857 SGD
Retailer 3$1,275 SGD
Retailer 5$1,781 SGD
MOH London$1,913 SGD

34 data points across 9 retailers

8 retailers$609 SGD to $1,913 SGD

A
Cheapest Retailer
-
$609 SGD
£374 GBP
Retailer 2
-
$623 SGD
HK$3,800 HKD
View
Price last confirmed 24 days ago
A
Retailer 3
-
$625 SGD
$488 USD
View
B+
Retailer 4
-
$777 SGD
$606 USD
View
B+
Retailer 5
-
$813 SGD
$634 USD
View
Retailer 6
-
$1,275 SGD
$995 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$1,781 SGD
View
Price last confirmed 23 days ago
Most Expensive
B
MOH London
LG494175221 · Oct 29
$1,913 SGD
£1,175 GBP
View
7 more retailers have this diamond
Prices start from $609 SGDSave up to $1,303 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
1.63ct Cushion
$609 SGD