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Round|Lab Grown|IGI

0.50ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG816606542

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816606542

Diamond specifications and retailer prices

From £111 GBP
As of November 4, 2026
Save £510 GBP (82%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £622 GBP at MOH London · As of November 4, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG816606542 or 816606542. Listed at 7 retailers as of November 4, 2026, with prices from £111 to £622, a £510 spread on the same certified stone. MOH London lists it at £622. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816606542
Dimensions5.10 × 5.07 × 3.17 mm
L/W Ratio1.01
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
5.10 mm5.07 mm0.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816606542
Side View
Table 55.0%Crown 34.8°Girdle: THN-MEDPavilion 41.1°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £622 GBP|Low: £111 GBP|High: £627 GBP|Avg: £251 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3£111 GBP
Retailer 2£157 GBP
Retailer 4£166 GBP
Retailer 5£178 GBP
Retailer 7£186 GBP
Retailer 6£317 GBP
MOH London£622 GBP

43 data points across 7 retailers

7 retailers£111 GBP to £622 GBP

A
Cheapest Retailer
-
£111 GBP
A
Retailer 2
-
£157 GBP
View
A
Retailer 3
-
£166 GBP
View
B+
Retailer 4
-
£178 GBP
View
B+
Retailer 5
-
£186 GBP
View
B
Retailer 6
-
£317 GBP
View
Most Expensive
B
MOH London
LG816606542 · Nov 4
£622 GBP
View
6 more retailers have this diamond
Prices start from £111 GBPSave up to £510 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
£111 GBP