CaratHunter
Plans
Round|Lab Grown|IGI

0.42ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG459129634

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459129634

Diamond specifications and retailer prices

From €232 EUR
$259 USD
As of November 1, 2026
Save €921 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,153 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG459129634 or 459129634. Listed at 10 retailers as of November 1, 2026, with prices from €232 to €1,153, a €921 spread on the same certified stone. MOH London lists it at €1,153. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459129634
Dimensions4.77 × 4.79 × 2.96 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
4.77 mm4.79 mm0.42 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459129634
Side View
Table 57.5%Crown 37.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.0%

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: €1,153 EUR|Low: €223 EUR|High: €1,166 EUR|Avg: €470 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5€232 EUR
Retailer 3€242 EUR
Retailer 8€269 EUR
Retailer 6€287 EUR
Retailer 7€479 EUR
Retailer 4€543 EUR
Retailer 2€543 EUR
MOH London€1,153 EUR

43 data points across 8 retailers

10 retailers€232 EUR to €1,153 EUR

A
Cheapest Retailer
-
€232 EUR
$259 USD
A
Retailer 2
-
€242 EUR
$270 USD
View
B+
Retailer 3
-
€269 EUR
$300 USD
View
B+
Retailer 4
-
€287 EUR
$321 USD
View
Retailer 5
-
€287 EUR
$321 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
€479 EUR
$535 USD
View
B
Retailer 7
-
€543 EUR
View
B
Retailer 8
-
€543 EUR
£478 GBP
View
B
Retailer 9
-
€925 EUR
$1,033 USD
View
Most Expensive
B
MOH London
LG459129634 · Nov 1
€1,153 EUR
£1,014 GBP
View
9 more retailers have this diamond
Prices start from €232 EURSave up to €921 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
€232 EUR