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Marquise|Lab Grown|IGI

0.78ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG845658664

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845658664

Diamond specifications and retailer prices

From £369 GBP
As of November 4, 2026
Save £1,538 GBP (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,907 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 0.78ct lab-grown marquise diamond

This 0.78ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG845658664 or 845658664. Listed at 17 retailers as of November 3, 2026, with prices from £369 to £1,907, a £1,538 spread on the same certified stone. MOH London lists it at £1,907. 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

0.78
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845658664
Dimensions9.83 × 4.78 × 2.97 mm
L/W Ratio2.06
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
9.83 mm4.78 mm0.78 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845658664
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,907 GBP|Low: £369 GBP|High: £1,964 GBP|Avg: £877 GBP|-2.9%
MOH London
Retailer 2
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November 5, 2026
Retailer 12£369 GBP
Retailer 7£412 GBP
Retailer 13£412 GBP
Retailer 6£451 GBP
Retailer 17£457 GBP
Retailer 9£504 GBP
Retailer 16£608 GBP
Retailer 14£711 GBP
Retailer 2£747 GBP
Retailer 4£795 GBP
Retailer 11£829 GBP
Retailer 3£1,201 GBP
Retailer 8£1,206 GBP
Retailer 10£1,228 GBP
Retailer 5£1,488 GBP
Retailer 15£1,588 GBP
MOH London£1,907 GBP

11 data points across 17 retailers

17 retailers£369 GBP to £1,907 GBP

A
Cheapest Retailer
-
£369 GBP
A
Retailer 2
-
£412 GBP
View
Final sale: no returns
A
Retailer 3
-
£412 GBP
View
A
Retailer 4
-
£451 GBP
View
A
Retailer 5
-
£457 GBP
View
B+
Retailer 6
-
£504 GBP
View
B+
Retailer 7
-
£608 GBP
View
B+
Retailer 8
-
£711 GBP
View
B+
Retailer 9
-
£747 GBP
View
B+
Retailer 10
-
£795 GBP
View
B+
Retailer 11
-
£829 GBP
View
B
Retailer 12
-
£1,201 GBP
View
B
Retailer 13
-
£1,206 GBP
View
B
Retailer 14
-
£1,228 GBP
View
B
Retailer 15
-
£1,488 GBP
View
B
Retailer 16
-
£1,588 GBP
View
Most Expensive
B
MOH London
LG845658664 · Nov 3
£1,907 GBP
View
16 more retailers have this diamond
Prices start from £369 GBPSave up to £1,538 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
0.78ct Marquise
£369 GBP