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Cushion|Lab Grown|IGI

5.00ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG842631081

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG842631081

Diamond specifications and retailer prices

From £547 GBP
$729 USD
As of October 29, 2026
Save £5,070 GBP (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,617 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5ct lab-grown cushion diamond

This 5ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG842631081 or 842631081. Listed at 9 retailers as of October 29, 2026, with prices from £547 to £5,617, a £5,070 spread on the same certified stone. Brilliant Earth lists it at £5,617. 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

5.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle29°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842631081
Dimensions9.34 × 9.05 × 6.30 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.34 mm9.05 mm5.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842631081
Side View
Table 57.0%Crown 37.6°Girdle: THK-VTKPavilion 29°Culet: NoneDepth 69.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £547 GBP|Low: £547 GBP|High: £2,391 GBP|Avg: £1,250 GBP|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 1£547 GBP
Retailer 6£698 GBP
Retailer 4£811 GBP
Retailer 2£903 GBP
Retailer 3£1,363 GBP
Retailer 5£1,506 GBP
Retailer 8£1,955 GBP
Retailer 7£2,391 GBP

9 data points across 8 retailers

9 retailers£547 GBP to £5,617 GBP

A
Cheapest Retailer
-
£547 GBP
$729 USD
Final sale: no returns
A
Retailer 2
-
£698 GBP
$930 USD
View
B+
Retailer 3
-
£811 GBP
$1,080 USD
View
A
Retailer 4
-
£903 GBP
View
B+
Retailer 5
-
£1,363 GBP
$1,815 USD
View
B+
Retailer 6
-
£1,506 GBP
$2,006 USD
View
B
Retailer 7
-
£1,955 GBP
$2,604 USD
View
B
Retailer 8
-
£2,391 GBP
View
Most Expensive
B
Brilliant Earth
22281299A · Oct 29
£5,617 GBP
$7,480 USD
View
8 more retailers have this diamond
Prices start from £547 GBPSave up to £5,070 GBP

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
5.00ct Cushion
£547 GBP