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Oval|Lab Grown|IGI

1.23ct E IF Oval Lab Grown Diamond

VG • E/IF • IGI LG817614044

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG817614044

Diamond specifications and retailer prices

From £264 GBP
$352 USD
As of October 28, 2026
Save £631 GBP (70%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £896 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.23ct lab-grown oval diamond

This 1.23ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG817614044 or 817614044. Listed at 6 retailers as of October 28, 2026, with prices from £264 to £896, a £631 spread on the same certified stone. MOH London lists it at £896. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817614044
Dimensions8.94 × 6.13 × 3.61 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
8.94 mm6.13 mm1.23 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817614044
Side View
Table 56.0%Crown 33°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 58.9%

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 28
Current: £896 GBP|Low: £264 GBP|High: £896 GBP|Avg: £513 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 4£264 GBP
Retailer 2£349 GBP
Retailer 5£374 GBP
Retailer 3£595 GBP
Retailer 6£653 GBP
MOH London£896 GBP

14 data points across 6 retailers

6 retailers£264 GBP to £896 GBP

B+
Cheapest Retailer
-
£264 GBP
$352 USD
A
Retailer 2
-
£349 GBP
View
A
Retailer 3
-
£374 GBP
$498 USD
View
B+
Retailer 4
-
£595 GBP
$792 USD
View
B+
Retailer 5
-
£653 GBP
$869 USD
View
Most Expensive
B
MOH London
LG817614044 · Oct 29
£896 GBP
View
5 more retailers have this diamond
Prices start from £264 GBPSave up to £631 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
1.23ct Oval
£264 GBP