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Cushion|Lab Grown|IGI

1.40ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG840611151

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840611151

Diamond specifications and retailer prices

From £182 GBP
$244 USD
As of October 30, 2026
Save £796 GBP (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £978 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.4ct lab-grown cushion diamond

This 1.4ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840611151 or 840611151. Listed at 17 retailers as of October 29, 2026, with prices from £182 to £978, a £796 spread on the same certified stone. Brilliant Earth lists it at £978. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840611151
Dimensions7.00 × 6.16 × 4.01 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.00 mm6.16 mm1.40 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840611151
Side View
Table 57.0%Crown 32.3°Girdle: MED-THKPavilion 34.8°Culet: NoneDepth 65.1%

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: £978 GBP|Low: £182 GBP|High: £978 GBP|Avg: £572 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 3£182 GBP
Retailer 8£218 GBP
Retailer 12£248 GBP
Retailer 10£272 GBP
Retailer 16£364 GBP
Retailer 5£375 GBP
Retailer 13£375 GBP
Retailer 2£444 GBP
Retailer 6£532 GBP
Retailer 14£538 GBP
Retailer 15£689 GBP
Retailer 17£694 GBP
Retailer 4£814 GBP
Retailer 9£838 GBP
Retailer 7£914 GBP
Retailer 11£934 GBP
Brilliant Earth£978 GBP

28 data points across 17 retailers

17 retailers£182 GBP to £978 GBP

A
Cheapest Retailer
-
£182 GBP
$244 USD
Final sale: no returns
A
Retailer 2
-
£218 GBP
$292 USD
View
A
Retailer 3
-
£248 GBP
View
B+
Retailer 4
-
£272 GBP
$365 USD
View
A
Retailer 5
-
£364 GBP
€465 EUR
View
A
Retailer 6
-
£375 GBP
ZAR 8,110 ZAR
View
A
Retailer 7
-
£375 GBP
View
A
Retailer 8
-
£444 GBP
$595 USD
View
A
Retailer 9
-
£532 GBP
A$1,097 AUD
View
B+
Retailer 10
-
£538 GBP
$721 USD
View
B+
Retailer 11
-
£689 GBP
$923 USD
View
B+
Retailer 12
-
£694 GBP
$930 USD
View
B+
Retailer 13
-
£814 GBP
View
Retailer 14
-
£838 GBP
A$1,727 AUD
View
Price last confirmed 23 days ago
Retailer 15
-
£914 GBP
$1,225 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
£934 GBP
$1,252 USD
View
Most Expensive
B
Brilliant Earth
21690503A · Oct 29
£978 GBP
$1,310 USD
View
16 more retailers have this diamond
Prices start from £182 GBPSave up to £796 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
1.40ct Cushion
£182 GBP