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Round|Lab Grown|IGI

0.41ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG455034543

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455034543

Diamond specifications and retailer prices

From £189 GBP
As of November 5, 2026
Save £747 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £936 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.41ct lab-grown round diamond

This 0.41ct lab-grown round sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG455034543 or 455034543. Listed at 10 retailers as of November 2, 2026, with prices from £189 to £936, a £747 spread on the same certified stone. MOH London lists it at £936. 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

0.41
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.8°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455034543
Dimensions4.83 × 4.85 × 2.85 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
4.83 mm4.85 mm0.41 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG455034543
Side View
Table 60.0%Crown 33.8°Girdle: MediumPavilion 40°Culet: NoneDepth 58.9%

Caratlytics Score

How it works →
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 5
Current: £936 GBP|Low: £181 GBP|High: £947 GBP|Avg: £385 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5£189 GBP
Retailer 3£201 GBP
Retailer 8£218 GBP
Retailer 6£233 GBP
Retailer 7£391 GBP
Retailer 2£439 GBP
Retailer 4£443 GBP
MOH London£936 GBP

44 data points across 8 retailers

10 retailers£189 GBP to £936 GBP

A
Cheapest Retailer
-
£189 GBP
B+
Retailer 2
-
£201 GBP
View
B+
Retailer 3
-
£218 GBP
View
Retailer 4
-
£233 GBP
View
Price last confirmed 12 days ago
B+
Retailer 5
-
£233 GBP
View
B
Retailer 6
-
£391 GBP
View
B
Retailer 7
-
£439 GBP
View
Retailer 8
-
£443 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
£751 GBP
View
Most Expensive
B
MOH London
LG455034543 · Nov 2
£936 GBP
View
9 more retailers have this diamond
Prices start from £189 GBPSave up to £747 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
0.41ct Round
£189 GBP