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Marquise|Lab Grown|IGI

0.50ct E IF Marquise Lab Grown Diamond

GD • E/IF • IGI LG836610277

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG836610277

Diamond specifications and retailer prices

From £249 GBP
$333 USD
As of October 30, 2026
Save £440 GBP (64%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £688 GBP at MOH London · As of October 25, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG836610277 or 836610277. Listed at 9 retailers as of October 25, 2026, with prices from £249 to £688, a £440 spread on the same certified stone. MOH London lists it at £688. 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
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836610277
Dimensions8.05 × 4.20 × 2.50 mm
L/W Ratio1.92
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
8.05 mm4.20 mm0.50 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836610277
Side View
Table 62.0%Crown 39.5°Girdle: MediumPavilion 38°Culet: NoneDepth 59.5%

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 30
Current: £688 GBP|Low: £248 GBP|High: £695 GBP|Avg: £360 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 7£249 GBP
Retailer 2£258 GBP
Retailer 5£263 GBP
Retailer 8£266 GBP
Retailer 6£276 GBP
Retailer 4£358 GBP
Retailer 3£403 GBP
Retailer 9£513 GBP
MOH London£688 GBP

34 data points across 9 retailers

9 retailers£249 GBP to £688 GBP

A
Cheapest Retailer
-
£249 GBP
$333 USD
A
Retailer 2
-
£258 GBP
View
A
Retailer 3
-
£263 GBP
€336 EUR
View
B+
Retailer 4
-
£266 GBP
$357 USD
View
A
Retailer 5
-
£276 GBP
$370 USD
View
B+
Retailer 6
-
£358 GBP
A$737 AUD
View
B+
Retailer 7
-
£403 GBP
$540 USD
View
B
Retailer 8
-
£513 GBP
$688 USD
View
Most Expensive
B
MOH London
LG836610277 · Oct 25
£688 GBP
View
8 more retailers have this diamond
Prices start from £249 GBPSave up to £440 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
£249 GBP