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Cushion|Lab Grown|IGI

1.18ct G VVS2 Cushion Lab Grown Diamond

EX • G/VVS2 • IGI LG838661862

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG838661862

Diamond specifications and retailer prices

From £129 GBP
$173 USD
As of October 30, 2026
Save £416 GBP (76%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £545 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.18ct lab-grown cushion diamond

This 1.18ct lab-grown cushion sits in the classic one-carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG838661862 or 838661862. Listed at 3 retailers as of October 30, 2026, with prices from £129 to £545, a £416 spread on the same certified stone. Brilliant Earth lists it at £545. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838661862
Dimensions7.29 × 5.59 × 3.75 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.29 mm5.59 mm1.18 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838661862
Side View
Table 63.0%Crown 35.3°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 67.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £545 GBP|Low: £129 GBP|High: £545 GBP|Avg: £376 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3£129 GBP
Retailer 2£259 GBP
Brilliant Earth£545 GBP

32 data points across 3 retailers

3 retailers£129 GBP to £545 GBP

A
Cheapest Retailer
-
£129 GBP
$173 USD
Final sale: no returns
A
Retailer 2
-
£259 GBP
View
Most Expensive
B+
Brilliant Earth
21552887A · Oct 31
£545 GBP
$730 USD
View
2 more retailers have this diamond
Prices start from £129 GBPSave up to £416 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
1.18ct Cushion
£129 GBP