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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 €426 EUR
£374 GBP
As of October 30, 2026
Save €910 EUR (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,336 EUR 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 €426 to €1,336, a €910 spread on the same certified stone. MOH London lists it at €1,336. 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: €1,336 EUR|Low: €424 EUR|High: €1,345 EUR|Avg: €720 EUR|-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€426 EUR
Retailer 7€435 EUR
Retailer 8€437 EUR
Retailer 4€542 EUR
Retailer 6€567 EUR
Retailer 9€598 EUR
Retailer 3€891 EUR
Retailer 5€1,244 EUR
MOH London€1,336 EUR

34 data points across 9 retailers

8 retailers€426 EUR to €1,336 EUR

A
Cheapest Retailer
-
€426 EUR
£374 GBP
Retailer 2
-
€435 EUR
HK$3,800 HKD
View
Price last confirmed 24 days ago
A
Retailer 3
-
€437 EUR
$488 USD
View
B+
Retailer 4
-
€542 EUR
$606 USD
View
B+
Retailer 5
-
€567 EUR
$634 USD
View
Retailer 6
-
€891 EUR
$995 USD
View
Price last confirmed 9 days ago
Retailer 7
-
€1,244 EUR
SGD 1,878 SGD
View
Price last confirmed 23 days ago
Most Expensive
B
MOH London
LG494175221 · Oct 29
€1,336 EUR
£1,175 GBP
View
7 more retailers have this diamond
Prices start from €426 EURSave up to €910 EUR

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
€426 EUR