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Oval|Lab Grown|IGI

1.23ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG846663417

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG846663417

Diamond specifications and retailer prices

From £198 GBP
$265 USD
As of October 31, 2026
Save £650 GBP (77%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £847 GBP at MOH London · As of November 1, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663417 or 846663417. Listed at 7 retailers as of October 31, 2026, with prices from £198 to £847, a £650 spread on the same certified stone. MOH London lists it at £847. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663417
Dimensions8.69 × 5.87 × 3.79 mm
L/W Ratio1.48
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
8.69 mm5.87 mm1.23 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663417
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 64.6%

Caratlytics Score

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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 31
Current: £847 GBP|Low: £198 GBP|High: £916 GBP|Avg: £511 GBP|-7.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5£198 GBP
Retailer 3£218 GBP
Retailer 2£360 GBP
Retailer 7£605 GBP
Retailer 4£680 GBP
Retailer 6£708 GBP
MOH London£847 GBP

6 data points across 7 retailers

7 retailers£198 GBP to £847 GBP

A
Cheapest Retailer
-
£198 GBP
$265 USD
A
Retailer 2
-
£218 GBP
View
A
Retailer 3
-
£360 GBP
$482 USD
View
B+
Retailer 4
-
£605 GBP
$810 USD
View
B+
Retailer 5
-
£680 GBP
$911 USD
View
B+
Retailer 6
-
£708 GBP
$948 USD
View
Most Expensive
B+
MOH London
LG846663417 · Nov 1
£847 GBP
View
6 more retailers have this diamond
Prices start from £198 GBPSave up to £650 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
£198 GBP