Cushion|Lab Grown|IGI

1.55ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG821628425

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821628425

Diamond specifications and retailer prices

From €342 EUR
As of October 29, 2026
Save €585 EUR (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €928 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown cushion diamond

This 1.55ct 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 standard cut grade and certified by IGI LG821628425 or 821628425. Listed at 5 retailers as of October 29, 2026, with prices from €342 to €928, a €585 spread on the same certified stone. MOH London lists it at €928. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821628425
Dimensions8.21 × 5.98 × 3.99 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.21 mm5.98 mm1.55 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821628425
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 66.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: €928 EUR|Low: €254 EUR|High: €983 EUR|Avg: €611 EUR|-4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3€254 EUR
Retailer 2€342 EUR
Retailer 4€499 EUR
Retailer 5€833 EUR
MOH London€928 EUR

22 data points across 5 retailers

5 retailers€342 EUR to €928 EUR

Retailer 1
-
€254 EUR
£223 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
€342 EUR
View
B+
Retailer 3
-
€499 EUR
$557 USD
View
Retailer 4
-
€833 EUR
SGD 1,257 SGD
View
Price last confirmed 17 days ago
Most Expensive
B
MOH London
LG821628425 · Oct 29
€928 EUR
£816 GBP
View
4 more retailers have this diamond
Prices start from €342 EURSave up to €585 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
1.55ct Cushion
€342 EUR