Radiant|Lab Grown|IGI

4.08ct F SI2 Radiant Lab Grown Diamond

ID • F/SI2 • IGI LG800664978

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG800664978

Diamond specifications and retailer prices

From €664 EUR
$742 USD
As of October 30, 2026
Save €2,364 EUR (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,028 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 4.08ct lab-grown radiant diamond

This 4.08ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG800664978 or 800664978. Listed at 11 retailers as of October 26, 2026, with prices from €664 to €3,028, a €2,364 spread on the same certified stone. MOH London lists it at €3,028. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.08
Carat
F
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle31.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800664978
Dimensions11.02 × 7.68 × 5.19 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.02 mm7.68 mm4.08 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800664978
Side View
Table 69.0%Crown 44.2°Girdle: Slightly ThickPavilion 31.7°Culet: NoneDepth 67.6%

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: Oct 30
Current: €3,028 EUR|Low: €637 EUR|High: €7,859 EUR|Avg: €1,682 EUR|-6.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6€664 EUR
Retailer 10€722 EUR
Retailer 7€770 EUR
Retailer 11€770 EUR
Retailer 3€1,075 EUR
Retailer 2€1,236 EUR
Retailer 9€1,247 EUR
Retailer 5€1,897 EUR
Retailer 8€2,165 EUR
Retailer 4€2,873 EUR
MOH London€3,028 EUR

42 data points across 11 retailers

11 retailers€664 EUR to €3,028 EUR

A
Cheapest Retailer
-
€664 EUR
$742 USD
A
Retailer 2
-
€722 EUR
$807 USD
View
A
Retailer 3
-
€770 EUR
$860 USD
View
Retailer 4
-
€770 EUR
$860 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
€1,075 EUR
$1,201 USD
View
B+
Retailer 6
-
€1,236 EUR
£1,088 GBP
View
B+
Retailer 7
-
€1,247 EUR
$1,393 USD
View
B
Retailer 8
-
€1,897 EUR
$2,119 USD
View
B
Retailer 9
-
€2,165 EUR
$2,419 USD
View
B
Retailer 10
-
€2,873 EUR
$3,210 USD
View
Most Expensive
B
MOH London
LG800664978 · Oct 26
€3,028 EUR
£2,664 GBP
View
10 more retailers have this diamond
Prices start from €664 EURSave up to €2,364 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 Radiant
€664 EUR