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Round|Lab Grown|IGI

0.40ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG459129403

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459129403

Diamond specifications and retailer prices

From €222 EUR
$248 USD
As of November 1, 2026
Save €881 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,103 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct lab-grown round diamond

This 0.4ct 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 LG459129403 or 459129403. Listed at 10 retailers as of November 1, 2026, with prices from €222 to €1,103, a €881 spread on the same certified stone. MOH London lists it at €1,103. 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

0.40
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459129403
Dimensions4.66 × 4.70 × 2.86 mm
L/W Ratio1.01
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
4.66 mm4.70 mm0.40 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG459129403
Side View
Table 61.5%Crown 37.2°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.0%

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: €1,103 EUR|Low: €213 EUR|High: €1,116 EUR|Avg: €442 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5€222 EUR
Retailer 3€233 EUR
Retailer 8€258 EUR
Retailer 6€276 EUR
Retailer 9€371 EUR
Retailer 7€461 EUR
Retailer 2€522 EUR
Retailer 4€523 EUR
MOH London€1,103 EUR

41 data points across 9 retailers

10 retailers€222 EUR to €1,103 EUR

A
Cheapest Retailer
-
€222 EUR
$248 USD
A
Retailer 2
-
€233 EUR
$260 USD
View
B+
Retailer 3
-
€258 EUR
$288 USD
View
B+
Retailer 4
-
€276 EUR
$308 USD
View
Retailer 5
-
€276 EUR
$308 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
€461 EUR
$515 USD
View
B
Retailer 7
-
€522 EUR
£459 GBP
View
B
Retailer 8
-
€523 EUR
View
B
Retailer 9
-
€885 EUR
$989 USD
View
Most Expensive
B
MOH London
LG459129403 · Nov 1
€1,103 EUR
£970 GBP
View
9 more retailers have this diamond
Prices start from €222 EURSave up to €881 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
0.40ct Round
€222 EUR