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Cushion|Lab Grown|IGI

1.18ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG800663086

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800663086

Diamond specifications and retailer prices

From £257 GBP
$344 USD
As of October 30, 2026
Save £1,089 GBP (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,345 GBP at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 1.18ct lab-grown cushion diamond

This 1.18ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG800663086 or 800663086. Listed at 15 retailers as of October 30, 2026, with prices from £257 to £1,345, a £1,089 spread on the same certified stone. Michael Trio lists it at £1,345. 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

1.18
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800663086
Dimensions7.60 × 5.40 × 3.65 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.60 mm5.40 mm1.18 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800663086
Side View
Table 65.0%Crown 38.1°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 67.6%

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: £1,345 GBP|Low: £257 GBP|High: £1,385 GBP|Avg: £667 GBP|-2.8%
Michael Trio
Retailer 2
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Retailer 7
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Retailer 15
October 31, 2026
Retailer 14£257 GBP
Retailer 7£290 GBP
Retailer 13£382 GBP
Retailer 9£388 GBP
Retailer 2£445 GBP
Retailer 6£492 GBP
Retailer 8£502 GBP
Retailer 12£524 GBP
Retailer 11£577 GBP
Retailer 5£699 GBP
Retailer 3£848 GBP
Retailer 15£950 GBP
Retailer 10£1,020 GBP
Retailer 4£1,154 GBP
Michael Trio£1,345 GBP

18 data points across 15 retailers

15 retailers£257 GBP to £1,345 GBP

A
Cheapest Retailer
-
£257 GBP
$344 USD
Final sale: no returns
A
Retailer 2
-
£290 GBP
$388 USD
View
A
Retailer 3
-
£382 GBP
$512 USD
View
A
Retailer 4
-
£388 GBP
$520 USD
View
A
Retailer 5
-
£445 GBP
€568 EUR
View
A
Retailer 6
-
£492 GBP
ZAR 10,651 ZAR
View
A
Retailer 7
-
£502 GBP
View
A
Retailer 8
-
£524 GBP
$702 USD
View
A
Retailer 9
-
£577 GBP
$773 USD
View
B+
Retailer 10
-
£699 GBP
A$1,440 AUD
View
B+
Retailer 11
-
£848 GBP
A$1,749 AUD
View
B+
Retailer 12
-
£950 GBP
$1,273 USD
View
B+
Retailer 13
-
£1,020 GBP
$1,367 USD
View
B
Retailer 14
-
£1,154 GBP
View
Most Expensive
B
Michael Trio
1126387104 · Oct 31
£1,345 GBP
SGD 2,436 SGD
View
14 more retailers have this diamond
Prices start from £257 GBPSave up to £1,089 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
£257 GBP