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Round|Lab Grown|IGI

0.50ct K SI2 Round Lab Grown Diamond

ID • K/SI2 • IGI LG492123552

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123552

Diamond specifications and retailer prices

From £82 GBP
As of November 5, 2026
Save £772 GBP (90%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £855 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.5ct lab-grown round diamond

This 0.5ct lab-grown round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492123552 or 492123552. Listed at 8 retailers as of November 2, 2026, with prices from £82 to £855, a £772 spread on the same certified stone. MOH London lists it at £855. 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

0.50
Carat
K
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123552
Dimensions5.08 × 5.12 × 3.13 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
5.08 mm5.12 mm0.50 ctK / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123552
Side View
Table 58.5%Crown 35.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.4%

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: Nov 5
Current: £855 GBP|Low: £82 GBP|High: £864 GBP|Avg: £349 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3£82 GBP
Retailer 4£109 GBP
Retailer 5£203 GBP
Retailer 6£302 GBP
Retailer 2£367 GBP
MOH London£855 GBP

15 data points across 6 retailers

8 retailers£82 GBP to £855 GBP

A
Cheapest Retailer
-
£82 GBP
A
Retailer 2
-
£96 GBP
View
Retailer 3
-
£109 GBP
View
Price last confirmed 12 days ago
B+
Retailer 4
-
£109 GBP
View
B+
Retailer 5
-
£203 GBP
View
B+
Retailer 6
-
£329 GBP
View
B
Retailer 7
-
£367 GBP
View
Most Expensive
B
MOH London
LG492123552 · Nov 2
£855 GBP
View
7 more retailers have this diamond
Prices start from £82 GBPSave up to £772 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
0.50ct Round
£82 GBP