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Round|Lab Grown|IGI

1.23ct K VS2 Round Lab Grown Diamond

ID • K/VS2 • IGI LG492113512

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492113512

Diamond specifications and retailer prices

From £794 GBP
As of November 5, 2026
Save £2,318 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,112 GBP at MOH London · As of November 5, 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 K colour (faint-tinted) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492113512 or 492113512. Listed at 11 retailers as of November 5, 2026, with prices from £794 to £3,112, a £2,318 spread on the same certified stone. MOH London lists it at £3,112. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
K
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492113512
Dimensions6.88 × 6.92 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.88 mm6.92 mm1.23 ctK / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492113512
Side View
Table 58.5%Crown 33.8°Girdle: MediumPavilion 41°Culet: NoneDepth 61.2%

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: Nov 5
Current: £3,112 GBP|Low: £762 GBP|High: £3,162 GBP|Avg: £1,591 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6£794 GBP
Retailer 7£920 GBP
Retailer 9£920 GBP
Retailer 5£1,051 GBP
Retailer 10£1,317 GBP
Retailer 2£1,360 GBP
Retailer 8£1,466 GBP
Retailer 4£1,578 GBP
Retailer 11£1,866 GBP
Retailer 3£2,060 GBP
MOH London£3,112 GBP

42 data points across 11 retailers

11 retailers£794 GBP to £3,112 GBP

A
Cheapest Retailer
-
£794 GBP
B+
Retailer 2
-
£863 GBP
View
B+
Retailer 3
-
£920 GBP
View
Retailer 4
-
£920 GBP
View
Price last confirmed 25 days ago
B+
Retailer 5
-
£1,051 GBP
View
B+
Retailer 6
-
£1,360 GBP
View
B
Retailer 7
-
£1,466 GBP
View
Retailer 8
-
£1,578 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
£1,724 GBP
View
B
Retailer 10
-
£1,866 GBP
View
Most Expensive
B
MOH London
LG492113512 · Nov 5
£3,112 GBP
View
10 more retailers have this diamond
Prices start from £794 GBPSave up to £2,318 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
£794 GBP