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Marquise|Lab Grown|IGI

0.73ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG845658726

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845658726

Diamond specifications and retailer prices

From £265 GBP
As of November 4, 2026
Save £685 GBP (72%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £950 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 0.73ct lab-grown marquise diamond

This 0.73ct 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 LG845658726 or 845658726. Listed at 5 retailers as of November 4, 2026, with prices from £265 to £950, a £685 spread on the same certified stone. MOH London lists it at £950. 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

0.73
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845658726
Dimensions9.59 × 4.64 × 2.92 mm
L/W Ratio2.07
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
9.59 mm4.64 mm0.73 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845658726
Side View
Table 58.0%Crown 33.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £950 GBP|Low: £265 GBP|High: £950 GBP|Avg: £600 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 4£265 GBP
Retailer 5£639 GBP
Retailer 3£644 GBP
Retailer 2£801 GBP
MOH London£950 GBP

3 data points across 5 retailers

5 retailers£265 GBP to £950 GBP

A
Cheapest Retailer
-
£265 GBP
B+
Retailer 2
-
£639 GBP
View
B+
Retailer 3
-
£644 GBP
View
B
Retailer 4
-
£801 GBP
View
Most Expensive
B
MOH London
LG845658726 · Nov 5
£950 GBP
View
4 more retailers have this diamond
Prices start from £265 GBPSave up to £685 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
0.73ct Marquise
£265 GBP