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Round|Lab Grown|IGI

0.50ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818658679

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818658679

Diamond specifications and retailer prices

From £105 GBP
$140 USD
As of October 29, 2026
Save £613 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £983 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818658679 or 818658679. Listed at 18 retailers as of October 28, 2026, with a 583% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658679
Dimensions5.16 × 5.13 × 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
5.16 mm5.13 mm0.50 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658679
Side View
Table 55.0%Crown 34°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.3%

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 29
Current: £983 GBP|Low: £96 GBP|High: £1,049 GBP|Avg: £324 GBP|-6.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 6£100 GBP
Retailer 15£105 GBP
Retailer 7£124 GBP
Retailer 8£124 GBP
Retailer 11£165 GBP
Retailer 2£194 GBP
Retailer 13£212 GBP
Retailer 14£212 GBP
Retailer 16£225 GBP
Retailer 9£293 GBP
Retailer 12£323 GBP
Retailer 3£344 GBP
Retailer 4£419 GBP
Retailer 5£421 GBP
Retailer 10£719 GBP
MOH London£983 GBP

30 data points across 16 retailers

18 retailers£105 GBP to £719 GBP

Retailer 1
-
£100 GBP
$133 USD
Price last confirmed 19 days ago
A
Retailer 2
-
£105 GBP
$140 USD
View
Final sale: no returns
Retailer 3
-
£116 GBP
$155 USD
View
Price last confirmed 20 days ago
Retailer 4
-
£124 GBP
$165 USD
View
Price last confirmed 17 days ago
Retailer 5
-
£124 GBP
$165 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
£165 GBP
$220 USD
View
A
Retailer 7
-
£194 GBP
View
A
Retailer 8
-
£212 GBP
ZAR 4,553 ZAR
View
A
Retailer 9
-
£212 GBP
€269 EUR
View
A
Retailer 10
-
£225 GBP
$300 USD
View
B+
Retailer 11
-
£293 GBP
$390 USD
View
B+
Retailer 12
-
£323 GBP
$430 USD
View
B+
Retailer 13
-
£344 GBP
$458 USD
View
Retailer 14
-
£399 GBP
$531 USD
View
Price last confirmed 30 days ago
B
Retailer 15
-
£419 GBP
$558 USD
View
B
Retailer 16
-
£421 GBP
$561 USD
View
B
Retailer 17
-
£719 GBP
$957 USD
View
Most Expensive
MOH London
LG818658679 · Oct 29
£983 GBP
View
Price under review
17 more retailers have this diamond
Prices start from £105 GBPSave up to £613 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
£105 GBP