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Oval|Lab Grown|IGI

4.03ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG791625705

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG791625705

Diamond specifications and retailer prices

From £467 GBP
HK$4,900 HKD
As of November 1, 2026
Save £1,124 GBP (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,592 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 4.03ct lab-grown oval diamond

This 4.03ct 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 LG791625705 or 791625705. Listed at 7 retailers as of November 1, 2026, with prices from £467 to £1,592, a £1,124 spread on the same certified stone. MOH London lists it at £1,592. 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

4.03
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791625705
Dimensions12.73 × 9.02 × 5.59 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.73 mm9.02 mm4.03 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791625705
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 40.6°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: £1,592 GBP|Low: £585 GBP|High: £1,612 GBP|Avg: £843 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2£585 GBP
Retailer 4£653 GBP
Retailer 5£684 GBP
Retailer 3£713 GBP
Retailer 6£852 GBP
MOH London£1,592 GBP

42 data points across 6 retailers

7 retailers£467 GBP to £1,592 GBP

A
Cheapest Retailer
-
£467 GBP
HK$4,900 HKD
B+
Retailer 2
-
£585 GBP
$785 USD
View
A
Retailer 3
-
£653 GBP
€834 EUR
View
A
Retailer 4
-
£684 GBP
$918 USD
View
A
Retailer 5
-
£713 GBP
View
A
Retailer 6
-
£852 GBP
$1,144 USD
View
Most Expensive
B
MOH London
LG791625705 · Nov 1
£1,592 GBP
View
6 more retailers have this diamond
Prices start from £467 GBPSave up to £1,124 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
4.03ct Oval
£467 GBP