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Cushion|Lab Grown|IGI

1.01ct E FL Cushion Lab Grown Diamond

VG • E/FL • IGI LG831690477

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831690477

Diamond specifications and retailer prices

From £286 GBP
As of October 30, 2026
Save £982 GBP (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,269 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG831690477 or 831690477. Listed at 9 retailers as of October 30, 2026, with prices from £286 to £1,269, a £982 spread on the same certified stone. Brilliant Earth lists it at £1,269. 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

1.01
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831690477
Dimensions7.15 × 5.04 × 3.43 mm
L/W Ratio1.42
Girdle conditionFaceted
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
7.15 mm5.04 mm1.01 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831690477
Side View
Table 60.0%Crown 33.5°Girdle: STK-THKPavilion 36.4°Culet: NoneDepth 68.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,269 GBP|Low: £286 GBP|High: £1,366 GBP|Avg: £648 GBP|-7.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4£286 GBP
Retailer 8£388 GBP
Retailer 3£443 GBP
Retailer 6£443 GBP
Retailer 2£449 GBP
Retailer 5£478 GBP
Retailer 9£741 GBP
Retailer 7£904 GBP
Brilliant Earth£1,269 GBP

2 data points across 9 retailers

9 retailers£286 GBP to £1,269 GBP

A
Cheapest Retailer
-
£286 GBP
A
Retailer 2
-
£388 GBP
$520 USD
View
A
Retailer 3
-
£443 GBP
$593 USD
View
A
Retailer 4
-
£443 GBP
$593 USD
View
A
Retailer 5
-
£449 GBP
$602 USD
View
A
Retailer 6
-
£478 GBP
View
B+
Retailer 7
-
£741 GBP
SGD 1,342 SGD
View
B
Retailer 8
-
£904 GBP
$1,212 USD
View
Most Expensive
B
Brilliant Earth
22348535A · Oct 30
£1,269 GBP
$1,700 USD
View
8 more retailers have this diamond
Prices start from £286 GBPSave up to £982 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
1.01ct Cushion
£286 GBP