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Round|Lab Grown|IGI

0.42ct F SI2 Round Lab Grown Diamond

VG • F/SI2 • IGI LG407901862

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407901862

Diamond specifications and retailer prices

From €195 EUR
$218 USD
As of November 1, 2026
Save €777 EUR (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €972 EUR at MOH London · As of October 26, 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407901862 or 407901862. Listed at 9 retailers as of October 26, 2026, with prices from €195 to €972, a €777 spread on the same certified stone. MOH London lists it at €972. 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
F
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407901862
Dimensions4.72 × 4.76 × 2.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
4.72 mm4.76 mm0.42 ctF / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407901862
Side View
Table 59.5%Crown 37°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.1%

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 1
Current: €972 EUR|Low: €188 EUR|High: €982 EUR|Avg: €440 EUR|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4€195 EUR
Retailer 3€224 EUR
Retailer 7€226 EUR
Retailer 5€243 EUR
Retailer 6€415 EUR
Retailer 2€471 EUR
Retailer 8€500 EUR
Retailer 10€507 EUR
Retailer 9€557 EUR
MOH London€972 EUR

18 data points across 10 retailers

9 retailers€195 EUR to €972 EUR

A
Cheapest Retailer
-
€195 EUR
$218 USD
A
Retailer 2
-
€224 EUR
$250 USD
View
B+
Retailer 3
-
€226 EUR
$253 USD
View
Retailer 4
-
€243 EUR
$271 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
€243 EUR
$271 USD
View
B
Retailer 6
-
€415 EUR
$464 USD
View
B
Retailer 7
-
€471 EUR
View
B
Retailer 8
-
€779 EUR
$870 USD
View
Most Expensive
B
MOH London
LG407901862 · Oct 26
€972 EUR
£855 GBP
View
8 more retailers have this diamond
Prices start from €195 EURSave up to €777 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
€195 EUR