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Round|Lab Grown|IGI

0.50ct E FL Round Lab Grown Diamond

EX • E/FL • IGI LG830618736

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830618736

Diamond specifications and retailer prices

From £104 GBP
$138 USD
As of October 30, 2026
Save £309 GBP (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £413 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830618736 or 830618736. Listed at 6 retailers as of October 29, 2026, with prices from £104 to £413, a £309 spread on the same certified stone. Brilliant Earth lists it at £413. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.50
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830618736
Dimensions5.00 × 5.05 × 3.15 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
5.00 mm5.05 mm0.50 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830618736
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.6%

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: Oct 30
Current: £413 GBP|Low: £104 GBP|High: £413 GBP|Avg: £315 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 2£104 GBP
Retailer 3£222 GBP
Retailer 4£238 GBP
Retailer 6£353 GBP
Retailer 5£412 GBP
Brilliant Earth£413 GBP

2 data points across 6 retailers

6 retailers£104 GBP to £413 GBP

A
Cheapest Retailer
-
£104 GBP
$138 USD
Final sale: no returns
B+
Retailer 2
-
£222 GBP
$295 USD
View
B+
Retailer 3
-
£238 GBP
View
B
Retailer 4
-
£353 GBP
SGD 635 SGD
View
B
Retailer 5
-
£412 GBP
$548 USD
View
Most Expensive
B
Brilliant Earth
22348809A · Oct 29
£413 GBP
$550 USD
View
5 more retailers have this diamond
Prices start from £104 GBPSave up to £309 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
£104 GBP