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Radiant|Lab Grown|IGI

1.18ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG815647770

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG815647770

Diamond specifications and retailer prices

From £198 GBP
As of November 4, 2026
Save £686 GBP (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £883 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.18ct lab-grown radiant diamond

This 1.18ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815647770 or 815647770. Listed at 15 retailers as of November 2, 2026, with prices from £198 to £883, a £686 spread on the same certified stone. MOH London lists it at £883. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815647770
Dimensions7.90 × 5.08 × 3.42 mm
L/W Ratio1.56
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.90 mm5.08 mm1.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815647770
Side View
Table 66.0%Crown 40.4°Girdle: MediumPavilion 36.2°Culet: NoneDepth 67.3%

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: Nov 4
Current: £883 GBP|Low: £198 GBP|High: £916 GBP|Avg: £541 GBP|-3.6%
MOH London
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
November 4, 2026
Retailer 5£198 GBP
Retailer 9£205 GBP
Retailer 4£296 GBP
Retailer 14£352 GBP
Retailer 13£380 GBP
Retailer 2£411 GBP
Retailer 3£452 GBP
Retailer 12£538 GBP
Retailer 15£542 GBP
Retailer 10£708 GBP
Retailer 6£710 GBP
Retailer 11£744 GBP
Retailer 8£764 GBP
Retailer 7£847 GBP
MOH London£883 GBP

24 data points across 15 retailers

15 retailers£198 GBP to £883 GBP

A
Cheapest Retailer
-
£198 GBP
Final sale: no returns
A
Retailer 2
-
£205 GBP
View
A
Retailer 3
-
£296 GBP
View
A
Retailer 4
-
£352 GBP
View
A
Retailer 5
-
£380 GBP
View
A
Retailer 6
-
£411 GBP
View
A
Retailer 7
-
£452 GBP
View
B+
Retailer 8
-
£538 GBP
View
B+
Retailer 9
-
£542 GBP
View
B+
Retailer 10
-
£708 GBP
View
B+
Retailer 11
-
£710 GBP
View
B+
Retailer 12
-
£744 GBP
View
B+
Retailer 13
-
£764 GBP
View
B
Retailer 14
-
£847 GBP
View
Most Expensive
B+
MOH London
LG815647770 · Nov 2
£883 GBP
View
14 more retailers have this diamond
Prices start from £198 GBPSave up to £686 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 Radiant
£198 GBP