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Oval|Lab Grown|IGI

4.01ct F SI1 Oval Lab Grown Diamond

VG • F/SI1 • IGI LG741557074

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG741557074

Diamond specifications and retailer prices

From £636 GBP
€812 EUR
As of October 31, 2026
Save £858 GBP (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,634 GBP at Rare Carat · As of September 30, 2026
View at Rare Carat

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 very-good cut grade and certified by IGI LG741557074 or 741557074. Listed at 7 retailers as of October 31, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.01
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741557074
Dimensions12.73 × 8.82 × 5.62 mm
L/W Ratio1.44
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 mm8.82 mm4.01 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741557074
Side View
Table 63.0%Crown 35.6°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 63.7%

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 31
Current: £1,634 GBP|Low: £628 GBP|High: £1,634 GBP|Avg: £1,010 GBP|+3.0%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5£636 GBP
Retailer 7£640 GBP
Retailer 4£667 GBP
Retailer 6£839 GBP
Retailer 8£894 GBP
Retailer 2£1,368 GBP
Retailer 3£1,495 GBP
Rare Carat£1,634 GBP

33 data points across 8 retailers

7 retailers£636 GBP to £1,495 GBP

A
Cheapest Retailer
-
£636 GBP
€812 EUR
B+
Retailer 2
-
£640 GBP
$857 USD
View
A
Retailer 3
-
£667 GBP
View
B+
Retailer 4
-
£839 GBP
$1,124 USD
View
B
Retailer 5
-
£1,368 GBP
$1,832 USD
View
B
Retailer 6
-
£1,495 GBP
View
Most Expensive
Rare Carat
27N741557074 · Sep 30
£1,634 GBP
$2,190 USD
View
Price last confirmed 32 days ago
6 more retailers have this diamond
Prices start from £636 GBPSave up to £858 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
£636 GBP