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Round|Lab Grown|IGI

0.50ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG831695393

Shape and cutting style on the report: Round brilliant

Certificate IGI LG831695393

Diamond specifications and retailer prices

From £140 GBP
As of October 31, 2026
Save £166 GBP (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £577 GBP at MOH London · As of October 29, 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 LG831695393 or 831695393. Listed at 8 retailers as of October 31, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831695393
Dimensions5.07 × 5.13 × 3.13 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
5.07 mm5.13 mm0.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831695393
Side View
Table 60.0%Crown 32.7°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
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: £577 GBP|Low: £126 GBP|High: £577 GBP|Avg: £260 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 5£126 GBP
Retailer 2£140 GBP
Retailer 3£151 GBP
Retailer 6£168 GBP
Retailer 7£295 GBP
Retailer 4£307 GBP
MOH London£577 GBP

9 data points across 7 retailers

8 retailers£140 GBP to £307 GBP

Retailer 1
-
£126 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
£140 GBP
View
Retailer 3
-
£151 GBP
View
Price last confirmed 8 days ago
Retailer 4
-
£168 GBP
View
Price last confirmed 7 days ago
B+
Retailer 5
-
£260 GBP
View
B
Retailer 6
-
£295 GBP
View
B
Retailer 7
-
£307 GBP
View
Most Expensive
MOH London
LG831695393 · Oct 29
£577 GBP
View
Price last confirmed 8 days ago
7 more retailers have this diamond
Prices start from £140 GBPSave up to £166 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
£140 GBP