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Oval|Lab Grown|IGI

4.01ct F SI1 Oval Lab Grown Diamond

GD • F/SI1 • IGI LG632478459

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG632478459

Diamond specifications and retailer prices

From £323 GBP
$433 USD
As of November 1, 2026
Save £3,774 GBP (92%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,097 GBP at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

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 standard cut grade and certified by IGI LG632478459 or 632478459. Listed at 18 retailers as of November 1, 2026, with prices from £323 to £4,097, a £3,774 spread on the same certified stone. Brilliant Earth lists it at £4,097. 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
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632478459
Dimensions12.62 × 9.04 × 5.62 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.62 mm9.04 mm4.01 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632478459
Side View
Table 60.0%Crown 36.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 1
Current: £4,097 GBP|Low: £310 GBP|High: £4,478 GBP|Avg: £956 GBP|+0.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 5£323 GBP
Retailer 15£348 GBP
Retailer 13£362 GBP
Retailer 3£401 GBP
Retailer 16£401 GBP
Retailer 11£508 GBP
Retailer 6£631 GBP
Retailer 10£651 GBP
Retailer 9£656 GBP
Retailer 7£710 GBP
Retailer 8£837 GBP
Retailer 14£1,125 GBP
Retailer 4£1,289 GBP
Retailer 12£1,475 GBP
Retailer 2£1,593 GBP
Brilliant Earth£4,097 GBP

41 data points across 16 retailers

18 retailers£323 GBP to £4,097 GBP

A
Cheapest Retailer
-
£323 GBP
$433 USD
Retailer 2
-
£348 GBP
View
Price last confirmed 15 days ago
B+
Retailer 3
-
£362 GBP
$485 USD
View
B+
Retailer 4
-
£401 GBP
$537 USD
View
Retailer 5
-
£401 GBP
$537 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£508 GBP
$680 USD
View
B
Retailer 7
-
£631 GBP
$846 USD
View
B+
Retailer 8
-
£651 GBP
€831 EUR
View
B+
Retailer 9
-
£656 GBP
View
B+
Retailer 10
-
£710 GBP
$951 USD
View
B+
Retailer 11
-
£837 GBP
$1,122 USD
View
B
Retailer 12
-
£1,125 GBP
$1,507 USD
View
B
Retailer 13
-
£1,289 GBP
$1,727 USD
View
B
Retailer 14
-
£1,475 GBP
View
B
Retailer 15
-
£1,590 GBP
$2,130 USD
View
B
Retailer 16
-
£1,593 GBP
$2,135 USD
View
B
Retailer 17
-
£1,608 GBP
$2,155 USD
View
Most Expensive
C
Brilliant Earth
10078177A · Oct 31
£4,097 GBP
$5,490 USD
View
17 more retailers have this diamond
Prices start from £323 GBPSave up to £3,774 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
£323 GBP