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Round|Lab Grown|IGI

0.42ct G SI1 Round Lab Grown Diamond

VG • G/SI1 • IGI LG455034095

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455034095

Diamond specifications and retailer prices

From €207 EUR
$231 USD
As of November 1, 2026
Save €821 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,028 EUR at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG455034095 or 455034095. Listed at 10 retailers as of November 1, 2026, with prices from €207 to €1,028, a €821 spread on the same certified stone. MOH London lists it at €1,028. 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

0.42
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455034095
Dimensions4.68 × 4.64 × 3.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
4.68 mm4.64 mm0.42 ctG / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG455034095
Side View
Table 57.5%Crown 36.6°Girdle: STK-THKPavilion 41.6°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,028 EUR|Low: €199 EUR|High: €1,040 EUR|Avg: €418 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5€207 EUR
Retailer 3€224 EUR
Retailer 8€240 EUR
Retailer 6€256 EUR
Retailer 9€367 EUR
Retailer 7€435 EUR
Retailer 2€482 EUR
Retailer 4€494 EUR
MOH London€1,028 EUR

42 data points across 9 retailers

10 retailers€207 EUR to €1,028 EUR

A
Cheapest Retailer
-
€207 EUR
$231 USD
A
Retailer 2
-
€224 EUR
$250 USD
View
B+
Retailer 3
-
€240 EUR
$268 USD
View
Retailer 4
-
€256 EUR
$286 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
€256 EUR
$286 USD
View
B
Retailer 6
-
€435 EUR
$486 USD
View
B
Retailer 7
-
€482 EUR
£424 GBP
View
B
Retailer 8
-
€494 EUR
View
B
Retailer 9
-
€824 EUR
$921 USD
View
Most Expensive
B
MOH London
LG455034095 · Nov 1
€1,028 EUR
£904 GBP
View
9 more retailers have this diamond
Prices start from €207 EURSave up to €821 EUR

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
€207 EUR