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Round|Lab Grown|IGI

0.42ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG846661869

Shape and cutting style on the report: Round brilliant

Certificate IGI LG846661869

Diamond specifications and retailer prices

From £101 GBP
$135 USD
As of October 30, 2026
Save £434 GBP (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £535 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.42ct lab-grown round diamond

This 0.42ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846661869 or 846661869. Listed at 7 retailers as of October 29, 2026, with prices from £101 to £535, a £434 spread on the same certified stone. MOH London lists it at £535. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.42
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846661869
Dimensions4.83 × 4.79 × 2.95 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
4.83 mm4.79 mm0.42 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846661869
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.3%

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: Oct 30
Current: £535 GBP|Low: £101 GBP|High: £538 GBP|Avg: £211 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 6£101 GBP
Retailer 2£125 GBP
Retailer 5£143 GBP
Retailer 3£157 GBP
Retailer 4£161 GBP
Retailer 7£277 GBP
MOH London£535 GBP

16 data points across 7 retailers

7 retailers£101 GBP to £535 GBP

A
Cheapest Retailer
-
£101 GBP
$135 USD
A
Retailer 2
-
£125 GBP
View
A
Retailer 3
-
£143 GBP
€183 EUR
View
A
Retailer 4
-
£157 GBP
$210 USD
View
A
Retailer 5
-
£161 GBP
View
B+
Retailer 6
-
£277 GBP
$372 USD
View
Most Expensive
B
MOH London
LG846661869 · Oct 29
£535 GBP
View
6 more retailers have this diamond
Prices start from £101 GBPSave up to £434 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
0.42ct Round
£101 GBP