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Oval|Lab Grown|IGI

1.00ct E FL Oval Lab Grown Diamond

EX • E/FL • IGI LG788629488

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG788629488

Diamond specifications and retailer prices

From £396 GBP
$528 USD
As of October 30, 2026
Save £558 GBP (58%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £955 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788629488 or 788629488. Listed at 6 retailers as of October 29, 2026, with prices from £396 to £955, a £558 spread on the same certified stone. MOH London lists it at £955. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle42.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788629488
Dimensions8.14 × 5.57 × 3.58 mm
L/W Ratio1.46
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
8.14 mm5.57 mm1.00 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788629488
Side View
Table 57.0%Crown 32.2°Girdle: MED-STKPavilion 42.5°Culet: NoneDepth 64.3%

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 30
Current: £955 GBP|Low: £319 GBP|High: £961 GBP|Avg: £567 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 2£396 GBP
Retailer 5£429 GBP
Retailer 3£451 GBP
Retailer 4£475 GBP
Retailer 6£801 GBP
MOH London£955 GBP

40 data points across 6 retailers

6 retailers£396 GBP to £955 GBP

A
Cheapest Retailer
-
£396 GBP
$528 USD
B+
Retailer 2
-
£429 GBP
$571 USD
View
B+
Retailer 3
-
£451 GBP
View
B+
Retailer 4
-
£475 GBP
$633 USD
View
B
Retailer 5
-
£801 GBP
$1,066 USD
View
Most Expensive
B
MOH London
LG788629488 · Oct 29
£955 GBP
View
5 more retailers have this diamond
Prices start from £396 GBPSave up to £558 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
£396 GBP