CaratHunter
Plans
Cushion|Lab Grown|IGI

4.08ct F SI1 Cushion Lab Grown Diamond

VG • F/SI1 • IGI LG830689146

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG830689146

Diamond specifications and retailer prices

From €950 EUR
$1,065 USD
As of November 2, 2026
Save €2,024 EUR (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €2,973 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 4.08ct lab-grown cushion diamond

This 4.08ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG830689146 or 830689146. Listed at 8 retailers as of November 1, 2026, with prices from €950 to €2,973, a €2,024 spread on the same certified stone. MOH London lists it at €2,973. 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

4.08
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830689146
Dimensions11.91 × 8.45 × 5.51 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.91 mm8.45 mm4.08 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830689146
Side View
Table 53.0%Crown 40.6°Girdle: MED-STKPavilion 36.3°Culet: LargeDepth 65.2%

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 2
Current: €2,973 EUR|Low: €794 EUR|High: €3,013 EUR|Avg: €1,782 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4€794 EUR
Retailer 3€950 EUR
Retailer 8€1,131 EUR
Retailer 2€1,216 EUR
Retailer 5€1,283 EUR
Retailer 6€2,670 EUR
Retailer 7€2,739 EUR
MOH London€2,973 EUR

41 data points across 8 retailers

8 retailers€950 EUR to €2,973 EUR

Retailer 1
-
€794 EUR
$890 USD
Price last confirmed 21 days ago
A
Retailer 2
-
€950 EUR
$1,065 USD
View
B+
Retailer 3
-
€1,131 EUR
$1,269 USD
View
B+
Retailer 4
-
€1,216 EUR
£1,074 GBP
View
B+
Retailer 5
-
€1,283 EUR
$1,439 USD
View
B
Retailer 6
-
€2,670 EUR
SGD 4,047 SGD
View
B
Retailer 7
-
€2,739 EUR
$3,072 USD
View
Most Expensive
B
MOH London
LG830689146 · Nov 1
€2,973 EUR
£2,626 GBP
View
7 more retailers have this diamond
Prices start from €950 EURSave up to €2,024 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
4.08ct Cushion
€950 EUR