Marquise|Lab Grown|IGI

0.34ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG830648595

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830648595

Diamond specifications and retailer prices

From £109 GBP
$146 USD
As of October 30, 2026
Save £391 GBP (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £633 GBP at MOH London · As of October 25, 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 very-good cut grade and certified by IGI LG830648595 or 830648595. Listed at 18 retailers as of October 30, 2026, with a 359% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.34
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830648595
Dimensions7.41 × 3.65 × 2.22 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.41 mm3.65 mm0.34 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG830648595
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 40.1°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: Oct 30
Current: £633 GBP|Low: £104 GBP|High: £640 GBP|Avg: £281 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 12£109 GBP
Retailer 3£122 GBP
Retailer 17£126 GBP
Retailer 14£135 GBP
Retailer 16£135 GBP
Retailer 6£185 GBP
Retailer 13£213 GBP
Retailer 11£231 GBP
Retailer 2£232 GBP
Retailer 4£238 GBP
Retailer 10£246 GBP
Retailer 5£257 GBP
Retailer 7£424 GBP
Retailer 15£434 GBP
Retailer 8£476 GBP
Retailer 9£500 GBP
MOH London£633 GBP

44 data points across 17 retailers

18 retailers£109 GBP to £500 GBP

A
Cheapest Retailer
-
£109 GBP
$146 USD
A
Retailer 2
-
£122 GBP
$164 USD
View
Final sale: no returns
A
Retailer 3
-
£126 GBP
$169 USD
View
Retailer 4
-
£134 GBP
$179 USD
View
Price last confirmed 37 days ago
Retailer 5
-
£135 GBP
$181 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
£135 GBP
$181 USD
View
A
Retailer 7
-
£185 GBP
$248 USD
View
B+
Retailer 8
-
£213 GBP
$285 USD
View
B+
Retailer 9
-
£231 GBP
€295 EUR
View
B+
Retailer 10
-
£232 GBP
View
B+
Retailer 11
-
£238 GBP
$319 USD
View
B+
Retailer 12
-
£246 GBP
ZAR 5,317 ZAR
View
Retailer 13
-
£257 GBP
$344 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
£424 GBP
CA$788 CAD
View
B
Retailer 15
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£434 GBP
$582 USD
View
B
Retailer 16
-
£476 GBP
$638 USD
View
B
Retailer 17
-
£500 GBP
$670 USD
View
Most Expensive
MOH London
LG830648595 · Oct 25
£633 GBP
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from £109 GBPSave up to £391 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
£109 GBP