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Marquise|Lab Grown|IGI

0.46ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG800638187

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800638187

Diamond specifications and retailer prices

From £204 GBP
As of November 5, 2026
Save £972 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,177 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 0.46ct lab-grown marquise diamond

This 0.46ct lab-grown marquise sits in the sub-half-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800638187 or 800638187. Listed at 13 retailers as of November 5, 2026, with prices from £204 to £1,177, a £972 spread on the same certified stone. MOH London lists it at £1,177. 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

0.46
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800638187
Dimensions7.95 × 4.01 × 2.52 mm
L/W Ratio1.98
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
7.95 mm4.01 mm0.46 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800638187
Side View
Table 62.0%Crown 34.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.8%

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 5
Current: £1,177 GBP|Low: £196 GBP|High: £1,180 GBP|Avg: £584 GBP|+17.5%
MOH London
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 16
November 5, 2026
Retailer 8£196 GBP
Retailer 3£204 GBP
Retailer 5£241 GBP
Retailer 14£311 GBP
Retailer 6£392 GBP
Retailer 16£395 GBP
Retailer 2£520 GBP
Retailer 10£534 GBP
Retailer 11£594 GBP
Retailer 13£596 GBP
Retailer 4£632 GBP
Retailer 12£868 GBP
Retailer 7£906 GBP
Retailer 15£1,025 GBP
Retailer 9£1,067 GBP
MOH London£1,177 GBP

20 data points across 16 retailers

13 retailers£204 GBP to £1,177 GBP

A
Cheapest Retailer
-
£204 GBP
A
Retailer 2
-
£241 GBP
View
Final sale: no returns
B+
Retailer 3
-
£311 GBP
View
B+
Retailer 4
-
£395 GBP
View
B+
Retailer 5
-
£520 GBP
View
B
Retailer 6
-
£534 GBP
View
B
Retailer 7
-
£536 GBP
View
B
Retailer 8
-
£594 GBP
View
B
Retailer 9
-
£632 GBP
View
B
Retailer 10
-
£868 GBP
View
B
Retailer 11
-
£1,025 GBP
View
B
Retailer 12
-
£1,067 GBP
View
Most Expensive
B
MOH London
LG800638187 · Nov 5
£1,177 GBP
View
12 more retailers have this diamond
Prices start from £204 GBPSave up to £972 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
0.46ct Marquise
£204 GBP