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Oval|Lab Grown|IGI

1.00ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG743511375

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG743511375

Diamond specifications and retailer prices

From £152 GBP
$202 USD
As of October 29, 2026
Save £960 GBP (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,111 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743511375 or 743511375. Listed at 22 retailers as of October 29, 2026, with prices from £152 to £1,111, a £960 spread on the same certified stone. Brilliant Earth lists it at £1,111. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743511375
Dimensions7.89 × 5.60 × 3.55 mm
L/W Ratio1.41
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
7.89 mm5.60 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743511375
Side View
Table 60.0%Crown 37.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.4%

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: Oct 29
Current: £1,111 GBP|Low: £151 GBP|High: £1,111 GBP|Avg: £450 GBP
Brilliant Earth
Retailer 2
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Retailer 21
October 29, 2026
Retailer 11£152 GBP
Retailer 13£169 GBP
Retailer 20£176 GBP
Retailer 6£188 GBP
Retailer 14£188 GBP
Retailer 16£200 GBP
Retailer 17£323 GBP
Retailer 7£327 GBP
Retailer 3£341 GBP
Retailer 2£345 GBP
Retailer 5£366 GBP
Retailer 4£415 GBP
Retailer 18£460 GBP
Retailer 9£510 GBP
Retailer 10£605 GBP
Retailer 12£645 GBP
Retailer 21£740 GBP
Retailer 15£741 GBP
Retailer 19£881 GBP
Retailer 8£902 GBP
Brilliant Earth£1,111 GBP

31 data points across 21 retailers

22 retailers£152 GBP to £1,111 GBP

A
Cheapest Retailer
-
£152 GBP
$202 USD
A
Retailer 2
-
£169 GBP
$225 USD
View
Final sale: no returns
A
Retailer 3
-
£176 GBP
$235 USD
View
A
Retailer 4
-
£188 GBP
$251 USD
View
A
Retailer 5
-
£188 GBP
$251 USD
View
A
Retailer 6
-
£200 GBP
View
A
Retailer 7
-
£323 GBP
ZAR 6,956 ZAR
View
A
Retailer 8
-
£327 GBP
$435 USD
View
A
Retailer 9
-
£345 GBP
View
A
Retailer 10
-
£366 GBP
$487 USD
View
B+
Retailer 11
-
£415 GBP
$553 USD
View
B+
Retailer 12
-
£460 GBP
A$943 AUD
View
B+
Retailer 13
-
£510 GBP
$679 USD
View
B+
Retailer 14
-
£605 GBP
$806 USD
View
B+
Retailer 15
-
£645 GBP
$859 USD
View
B
Retailer 16
-
£671 GBP
$894 USD
View
B
Retailer 17
-
£740 GBP
$985 USD
View
B+
Retailer 18
-
£741 GBP
A$1,518 AUD
View
Retailer 19
-
£758 GBP
$1,010 USD
View
Price last confirmed 31 days ago
B
Retailer 20
-
£881 GBP
View
B
Retailer 21
-
£902 GBP
$1,201 USD
View
Most Expensive
B
Brilliant Earth
16426850A · Oct 29
£1,111 GBP
$1,480 USD
View
21 more retailers have this diamond
Prices start from £152 GBPSave up to £960 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
1.00ct Oval
£152 GBP