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Marquise|Lab Grown|IGI

0.34ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG801659931

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG801659931

Diamond specifications and retailer prices

From £128 GBP
$172 USD
As of November 1, 2026
Save £610 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £738 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.34ct lab-grown marquise diamond

This 0.34ct lab-grown marquise sits in the sub-half-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG801659931 or 801659931. Listed at 14 retailers as of October 29, 2026, with prices from £128 to £738, a £610 spread on the same certified stone. MOH London lists it at £738. 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

0.34
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801659931
Dimensions7.62 × 3.60 × 2.19 mm
L/W Ratio2.12
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
7.62 mm3.60 mm0.34 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801659931
Side View
Table 61.0%Crown 33.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.8%

Caratlytics Score

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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: £738 GBP|Low: £73 GBP|High: £738 GBP|Avg: £303 GBP|+16.6%
MOH London
Retailer 2
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Retailer 12
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Retailer 17
November 1, 2026
Retailer 9£73 GBP
Retailer 14£128 GBP
Retailer 4£145 GBP
Retailer 16£207 GBP
Retailer 3£213 GBP
Retailer 11£224 GBP
Retailer 6£230 GBP
Retailer 8£257 GBP
Retailer 10£280 GBP
Retailer 2£285 GBP
Retailer 15£297 GBP
Retailer 13£313 GBP
Retailer 7£342 GBP
Retailer 12£424 GBP
Retailer 17£500 GBP
Retailer 5£635 GBP
MOH London£738 GBP

21 data points across 17 retailers

14 retailers£128 GBP to £738 GBP

A
Cheapest Retailer
-
£128 GBP
$172 USD
Final sale: no returns
A
Retailer 2
-
£145 GBP
$194 USD
View
A
Retailer 3
-
£207 GBP
$277 USD
View
A
Retailer 4
-
£213 GBP
$285 USD
View
A
Retailer 5
-
£224 GBP
$300 USD
View
B+
Retailer 6
-
£267 GBP
$358 USD
View
B+
Retailer 7
-
£280 GBP
View
B+
Retailer 8
-
£285 GBP
ZAR 6,177 ZAR
View
B+
Retailer 9
-
£313 GBP
View
Retailer 10
-
£342 GBP
A$704 AUD
View
Price last confirmed 32 days ago
B
Retailer 11
-
£424 GBP
CA$788 CAD
View
B
Retailer 12
-
£500 GBP
$670 USD
View
B
Retailer 13
-
£635 GBP
$850 USD
View
Most Expensive
B
MOH London
LG801659931 · Oct 29
£738 GBP
View
13 more retailers have this diamond
Prices start from £128 GBPSave up to £610 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
0.34ct Marquise
£128 GBP