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Round|Lab Grown|IGI

0.50ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG817615241

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817615241

Diamond specifications and retailer prices

From £144 GBP
As of October 31, 2026
Save £155 GBP (52%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £586 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 very-good cut grade and certified by IGI LG817615241 or 817615241. Listed at 7 retailers as of October 31, 2026, with a 108% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817615241
Dimensions5.29 × 5.24 × 2.99 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
5.29 mm5.24 mm0.50 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG817615241
Side View
Table 65.0%Crown 32.9°Girdle: MediumPavilion 40.3°Culet: NoneDepth 56.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £586 GBP|Low: £108 GBP|High: £595 GBP|Avg: £236 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5£108 GBP
Retailer 4£115 GBP
Retailer 3£144 GBP
Retailer 2£154 GBP
Retailer 6£252 GBP
Retailer 7£299 GBP
MOH London£586 GBP

40 data points across 7 retailers

7 retailers£144 GBP to £299 GBP

Retailer 1
-
£108 GBP
Price last confirmed 7 days ago
Retailer 2
-
£115 GBP
View
Price last confirmed 12 days ago
B+
Retailer 3
-
£144 GBP
View
B+
Retailer 4
-
£154 GBP
View
B
Retailer 5
-
£252 GBP
View
B
Retailer 6
-
£299 GBP
View
Most Expensive
MOH London
LG817615241 · Oct 29
£586 GBP
View
Price last confirmed 8 days ago
6 more retailers have this diamond
Prices start from £144 GBPSave up to £155 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.

B+
0.50ct Round
£144 GBP