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Radiant|Lab Grown|IGI

1.41ct F SI1 Radiant Lab Grown Diamond

VG • F/SI1 • IGI LG768690939

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

Certificate IGI LG768690939

Diamond specifications and retailer prices

From £140 GBP
As of November 2, 2026
Save £673 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £813 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.41ct lab-grown radiant diamond

This 1.41ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG768690939 or 768690939. Listed at 11 retailers as of November 2, 2026, with prices from £140 to £813, a £673 spread on the same certified stone. MOH London lists it at £813. 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

1.41
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768690939
Dimensions7.93 × 5.21 × 3.73 mm
L/W Ratio1.52
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.93 mm5.21 mm1.41 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768690939
Side View
Table 67.0%Crown 28°Girdle: MED-STKPavilion 33.6°Culet: NoneDepth 71.6%

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: Nov 2
Current: £813 GBP|Low: £136 GBP|High: £832 GBP|Avg: £373 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3£140 GBP
Retailer 5£163 GBP
Retailer 11£174 GBP
Retailer 4£294 GBP
Retailer 7£305 GBP
Retailer 2£312 GBP
Retailer 6£364 GBP
Retailer 9£402 GBP
Retailer 10£559 GBP
Retailer 8£561 GBP
MOH London£813 GBP

44 data points across 11 retailers

11 retailers£140 GBP to £813 GBP

A
Cheapest Retailer
-
£140 GBP
A
Retailer 2
-
£163 GBP
View
A
Retailer 3
-
£174 GBP
View
A
Retailer 4
-
£294 GBP
View
B+
Retailer 5
-
£305 GBP
View
A
Retailer 6
-
£312 GBP
View
B+
Retailer 7
-
£364 GBP
View
B+
Retailer 8
-
£402 GBP
View
B
Retailer 9
-
£559 GBP
View
B
Retailer 10
-
£561 GBP
View
Most Expensive
B
MOH London
LG768690939 · Nov 2
£813 GBP
View
10 more retailers have this diamond
Prices start from £140 GBPSave up to £673 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
1.41ct Radiant
£140 GBP