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Round|Lab Grown|IGI

1.23ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG804642959

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804642959

Diamond specifications and retailer prices

From £131 GBP
$175 USD
As of November 1, 2026
Save £626 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £756 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG804642959 or 804642959. Listed at 17 retailers as of November 1, 2026, with prices from £131 to £756, a £626 spread on the same certified stone. MOH London lists it at £756. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804642959
Dimensions6.89 × 6.84 × 4.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.89 mm6.84 mm1.23 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804642959
Side View
Table 57.0%Crown 35.4°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.5%

Caratlytics Score

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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: Nov 1
Current: £756 GBP|Low: £131 GBP|High: £765 GBP|Avg: £380 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8£131 GBP
Retailer 10£162 GBP
Retailer 11£288 GBP
Retailer 6£289 GBP
Retailer 4£299 GBP
Retailer 5£301 GBP
Retailer 3£348 GBP
Retailer 7£384 GBP
Retailer 2£410 GBP
Retailer 9£455 GBP
Retailer 12£580 GBP
MOH London£756 GBP

44 data points across 12 retailers

17 retailers£131 GBP to £756 GBP

A
Cheapest Retailer
-
£131 GBP
$175 USD
A
Retailer 2
-
£152 GBP
$203 USD
View
Retailer 3
-
£162 GBP
$217 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
£162 GBP
$217 USD
View
A
Retailer 5
-
£288 GBP
$386 USD
View
A
Retailer 6
-
£289 GBP
View
A
Retailer 7
-
£299 GBP
$401 USD
View
A
Retailer 8
-
£301 GBP
€384 EUR
View
B+
Retailer 9
-
£348 GBP
$466 USD
View
B+
Retailer 10
-
£384 GBP
$515 USD
View
B+
Retailer 11
-
£410 GBP
$550 USD
View
B+
Retailer 12
-
£455 GBP
$610 USD
View
Retailer 13
-
£497 GBP
$666 USD
View
Price last confirmed 31 days ago
B
Retailer 14
-
£520 GBP
$697 USD
View
B
Retailer 15
-
£560 GBP
$751 USD
View
B
Retailer 16
-
£580 GBP
$777 USD
View
Most Expensive
B
MOH London
LG804642959 · Nov 1
£756 GBP
View
16 more retailers have this diamond
Prices start from £131 GBPSave up to £626 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 Round
£131 GBP