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Oval|Lab Grown|IGI

4.05ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG797669797

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG797669797

Diamond specifications and retailer prices

From £1,662 GBP
As of October 29, 2026
Save £5,735 GBP (78%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £7,397 GBP at Brilliant Earth · As of October 29, 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 LG797669797 or 797669797. Listed at 24 retailers as of October 29, 2026, with prices from £1,662 to £7,397, a £5,735 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797669797
Dimensions12.92 × 8.87 × 5.58 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
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
12.92 mm8.87 mm4.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797669797
Side View
Table 59.0%Crown 35.6°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 62.9%

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: £1,642 GBP|High: £7,397 GBP|Avg: £3,302 GBP
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
Retailer 17
Retailer 18
October 29, 2026
Retailer 12£1,662 GBP
Retailer 13£1,710 GBP
Retailer 17£1,861 GBP
Retailer 9£1,984 GBP
Retailer 15£1,984 GBP
Retailer 10£2,147 GBP
Retailer 11£2,723 GBP
Retailer 16£2,727 GBP
Retailer 6£2,983 GBP
Retailer 5£3,041 GBP
Retailer 4£3,131 GBP
Retailer 7£4,132 GBP
Retailer 2£4,223 GBP
Retailer 18£4,257 GBP
Retailer 3£4,637 GBP
Retailer 8£5,033 GBP
Retailer 14£5,389 GBP
Brilliant Earth£7,397 GBP

33 data points across 18 retailers

24 retailers£1,662 GBP to £7,397 GBP

A
Cheapest Retailer
-
£1,662 GBP
A
Retailer 2
-
£1,710 GBP
$2,277 USD
View
A
Retailer 3
-
£1,861 GBP
$2,478 USD
View
A
Retailer 4
-
£1,914 GBP
$2,549 USD
View
Final sale: no returns
Retailer 5
-
£1,984 GBP
$2,642 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
£1,984 GBP
$2,642 USD
View
A
Retailer 7
-
£2,106 GBP
$2,805 USD
View
A
Retailer 8
-
£2,147 GBP
$2,859 USD
View
A
Retailer 9
-
£2,723 GBP
View
A
Retailer 10
-
£2,727 GBP
$3,631 USD
View
A
Retailer 11
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£2,983 GBP
$3,972 USD
View
A
Retailer 12
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£3,041 GBP
$4,049 USD
View
A
Retailer 13
-
£3,765 GBP
View
A
Retailer 14
-
£4,132 GBP
$5,503 USD
View
A
Retailer 15
-
£4,223 GBP
ZAR 90,846 ZAR
View
Retailer 16
-
£4,257 GBP
A$8,721 AUD
View
Price last confirmed 7 days ago
Retailer 17
-
£4,637 GBP
$6,175 USD
View
Price last confirmed 8 days ago
B+
Retailer 18
-
£5,033 GBP
$6,702 USD
View
B+
Retailer 19
-
£5,184 GBP
$6,903 USD
View
B+
Retailer 20
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£5,297 GBP
$7,054 USD
View
B+
Retailer 21
-
£5,389 GBP
View
B+
Retailer 22
-
£5,601 GBP
$7,459 USD
View
B
Retailer 23
-
£6,930 GBP
$9,229 USD
View
Most Expensive
B
Brilliant Earth
19793666A · Oct 29
£7,397 GBP
$9,850 USD
View
23 more retailers have this diamond
Prices start from £1,662 GBPSave up to £5,735 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
£1,662 GBP