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Marquise|Lab Grown|IGI

0.50ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG628474093

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG628474093

Diamond specifications and retailer prices

From £77 GBP
$103 USD
As of October 30, 2026
Save £378 GBP (83%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £455 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628474093 or 628474093. Listed at 2 retailers as of October 30, 2026, with prices from £77 to £455, a £378 spread on the same certified stone. Brilliant Earth lists it at £455. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628474093
Dimensions8.36 × 4.19 × 2.59 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
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
8.36 mm4.19 mm0.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG628474093
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £455 GBP|Low: £69 GBP|High: £580 GBP|Avg: £331 GBP
Brilliant Earth
Retailer 2
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Retailer 6
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Retailer 8
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Retailer 14
September 27, 2026
Retailer 2£77 GBP
Retailer 10£174 GBP
Retailer 12£181 GBP
Retailer 11£183 GBP
Retailer 9£202 GBP
Retailer 14£223 GBP
Retailer 7£262 GBP
Retailer 3£300 GBP
Retailer 13£359 GBP
Retailer 5£373 GBP
Retailer 6£442 GBP
Brilliant Earth£455 GBP
Retailer 8£482 GBP
Retailer 4£535 GBP

48 data points across 14 retailers

2 retailers£77 GBP to £455 GBP

A
Cheapest Retailer
-
£77 GBP
$103 USD
Final sale: no returns
Most Expensive
B
Brilliant Earth
10453741A · Oct 30
£455 GBP
$610 USD
View
1 more retailer has this diamond
Prices start from £77 GBPSave up to £378 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 Marquise
£77 GBP