Oval|Lab Grown|IGI

4.01ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG844639814

Shape and cutting style on the report: Oval modified brilliant

Certificate IGI LG844639814

Diamond specifications and retailer prices

From £725 GBP
As of October 26, 2026
Save £817 GBP (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,982 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 4.01ct lab-grown oval diamond

This 4.01ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG844639814 or 844639814. Listed at 6 retailers as of October 26, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.01
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844639814
Dimensions15.60 × 7.96 × 4.86 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.60 mm7.96 mm4.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844639814
Side View
Table 61.0%Crown 36.4°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: £1,982 GBP|Low: £636 GBP|High: £2,000 GBP|Avg: £1,022 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 26, 2026
Retailer 6£636 GBP
Retailer 7£680 GBP
Retailer 2£725 GBP
Retailer 5£769 GBP
Retailer 3£858 GBP
Retailer 4£1,542 GBP
MOH London£1,982 GBP

12 data points across 7 retailers

6 retailers£725 GBP to £1,542 GBP

Retailer 1
-
£636 GBP
$852 USD
Price last confirmed 9 days ago
A
Retailer 2
-
£725 GBP
View
A
Retailer 3
-
£769 GBP
$1,031 USD
View
A
Retailer 4
-
£858 GBP
$1,149 USD
View
Price last confirmed 7 days ago
B
Retailer 5
-
£1,542 GBP
$2,067 USD
View
Most Expensive
MOH London
LG844639814 · Oct 25
£1,982 GBP
View
Price last confirmed 7 days ago
5 more retailers have this diamond
Prices start from £725 GBPSave up to £817 GBP

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
4.01ct Oval
£725 GBP