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Cushion|Lab Grown|IGI

5.01ct E SI1 Cushion Lab Grown Diamond

E/SI1 • IGI LG559278558

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG559278558

Diamond specifications and retailer prices

From £3,214 GBP
$4,280 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: £3,214 GBP at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 5.01ct lab-grown cushion diamond

This 5.01ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included) and certified by IGI LG559278558 or 559278558. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

5.01
Carat
E
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle31°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559278558
Dimensions9.45 × 9.40 × 5.95 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.45 mm9.40 mm5.01 ctE / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559278558
Side View
Table 64.5%Crown 39.3°Girdle: STK-VTKPavilion 31°Culet: NoneDepth 63.3%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 29
Current: £3,214 GBP|Low: £2,473 GBP|High: £3,214 GBP|Avg: £2,668 GBP|+3.8%
B2C Jewels
Retailer 2
September 23, 2026
Retailer 2£2,473 GBP
B2C Jewels£3,214 GBP

5 data points across 2 retailers

1 retailer

C
B2C Jewels
22047433 · Oct 29
£3,214 GBP
$4,280 USD
View

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C
5.01ct Cushion
£3,214 GBP