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Oval|Lab Grown|IGI

4.05ct E IF Oval Lab Grown Diamond

EX • E/IF • IGI LG812620712

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG812620712

Diamond specifications and retailer prices

From £2,723 GBP
As of October 29, 2026
Save £4,674 GBP (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £7,397 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4.05ct lab-grown oval diamond

This 4.05ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812620712 or 812620712. Listed at 11 retailers as of October 28, 2026, with prices from £2,723 to £7,397, a £4,674 spread on the same certified stone. Brilliant Earth lists it at £7,397. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.05
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620712
Dimensions13.01 × 9.02 × 5.59 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
13.01 mm9.02 mm4.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620712
Side View
Table 58.0%Crown 34.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.0%

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 29
Current: £7,397 GBP|Low: £2,106 GBP|High: £7,720 GBP|Avg: £4,800 GBP|-4.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 4£2,106 GBP
Retailer 5£2,723 GBP
Retailer 11£2,983 GBP
Retailer 3£3,327 GBP
Retailer 6£4,132 GBP
Retailer 2£4,223 GBP
Retailer 12£4,645 GBP
Retailer 7£5,033 GBP
Retailer 8£5,184 GBP
Retailer 9£5,389 GBP
Retailer 10£6,930 GBP
Brilliant Earth£7,397 GBP

37 data points across 12 retailers

11 retailers£2,723 GBP to £7,397 GBP

Retailer 1
-
£2,106 GBP
$2,805 USD
Price last confirmed 19 days ago
A
Retailer 2
-
£2,723 GBP
View
A
Retailer 3
-
£2,983 GBP
$3,972 USD
View
A
Retailer 4
-
£4,132 GBP
$5,503 USD
View
A
Retailer 5
-
£4,223 GBP
ZAR 90,846 ZAR
View
Retailer 6
-
£4,645 GBP
$6,185 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£5,033 GBP
$6,702 USD
View
B+
Retailer 8
-
£5,184 GBP
$6,903 USD
View
B+
Retailer 9
-
£5,389 GBP
View
B
Retailer 10
-
£6,930 GBP
$9,229 USD
View
Most Expensive
B+
Brilliant Earth
20895956A · Oct 28
£7,397 GBP
$9,850 USD
View
10 more retailers have this diamond
Prices start from £2,723 GBPSave up to £4,674 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
4.05ct Oval
£2,723 GBP