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Oval|Lab Grown|IGI

1.22ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG733546426

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG733546426

Diamond specifications and retailer prices

From £287 GBP
$384 USD
As of October 30, 2026
Save £468 GBP (62%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £754 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.22ct lab-grown oval diamond

This 1.22ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG733546426 or 733546426. Listed at 6 retailers as of October 29, 2026, with prices from £287 to £754, a £468 spread on the same certified stone. MOH London lists it at £754. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.22
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733546426
Dimensions8.53 × 5.95 × 3.74 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.53 mm5.95 mm1.22 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733546426
Side View
Table 60.0%Crown 32.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £754 GBP|Low: £236 GBP|High: £760 GBP|Avg: £390 GBP|+1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 3£286 GBP
Retailer 5£287 GBP
Retailer 2£287 GBP
Retailer 6£302 GBP
Retailer 4£402 GBP
Retailer 7£485 GBP
MOH London£754 GBP

33 data points across 7 retailers

6 retailers£287 GBP to £754 GBP

A
Cheapest Retailer
-
£287 GBP
$384 USD
A
Retailer 2
-
£287 GBP
View
A
Retailer 3
-
£302 GBP
$404 USD
View
B+
Retailer 4
-
£402 GBP
$539 USD
View
Retailer 5
-
£485 GBP
$650 USD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
LG733546426 · Oct 29
£754 GBP
View
5 more retailers have this diamond
Prices start from £287 GBPSave up to £468 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
1.22ct Oval
£287 GBP