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Marquise|Lab Grown|IGI

0.50ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG830604475

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830604475

Diamond specifications and retailer prices

From £239 GBP
As of November 1, 2026
Save £405 GBP (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £644 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830604475 or 830604475. Listed at 7 retailers as of November 1, 2026, with prices from £239 to £644, a £405 spread on the same certified stone. MOH London lists it at £644. 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
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830604475
Dimensions7.80 × 4.17 × 2.60 mm
L/W Ratio1.87
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
7.80 mm4.17 mm0.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830604475
Side View
Table 64.0%Crown 36.6°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.4%

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: Nov 1
Current: £644 GBP|Low: £228 GBP|High: £651 GBP|Avg: £370 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4£232 GBP
Retailer 2£239 GBP
Retailer 7£251 GBP
Retailer 6£253 GBP
Retailer 3£418 GBP
Retailer 5£475 GBP
Retailer 8£484 GBP
MOH London£644 GBP

41 data points across 8 retailers

7 retailers£239 GBP to £644 GBP

A
Cheapest Retailer
-
£239 GBP
A
Retailer 2
-
£251 GBP
$336 USD
View
A
Retailer 3
-
£253 GBP
$339 USD
View
Retailer 4
-
£418 GBP
$560 USD
View
Price last confirmed 11 days ago
Retailer 5
-
£475 GBP
A$979 AUD
View
Price last confirmed 27 days ago
B+
Retailer 6
-
£484 GBP
$649 USD
View
Most Expensive
B
MOH London
LG830604475 · Nov 1
£644 GBP
View
6 more retailers have this diamond
Prices start from £239 GBPSave up to £405 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
£239 GBP