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Marquise|Lab Grown|IGI

0.50ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG788681809

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG788681809

Diamond specifications and retailer prices

From £110 GBP
$147 USD
As of October 30, 2026
Save £524 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £634 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct lab-grown marquise diamond

This 0.5ct 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 LG788681809 or 788681809. Listed at 18 retailers as of October 30, 2026, with prices from £110 to £634, a £524 spread on the same certified stone. MOH London lists it at £634. 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

0.50
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788681809
Dimensions8.15 × 4.06 × 2.58 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
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
8.15 mm4.06 mm0.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788681809
Side View
Table 58.0%Crown 35.4°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 63.5%

Caratlytics Score

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A+
Exceptional
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: £634 GBP|Low: £110 GBP|High: £677 GBP|Avg: £270 GBP|-6.3%
MOH London
Retailer 2
Retailer 3
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Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 1, 2026
Retailer 6£110 GBP
Retailer 7£122 GBP
Retailer 16£127 GBP
Retailer 12£136 GBP
Retailer 5£137 GBP
Retailer 9£153 GBP
Retailer 17£183 GBP
Retailer 10£234 GBP
Retailer 2£246 GBP
Retailer 4£249 GBP
Retailer 13£303 GBP
Retailer 15£332 GBP
Retailer 3£347 GBP
Retailer 8£376 GBP
Retailer 14£436 GBP
Retailer 11£460 GBP
MOH London£634 GBP

22 data points across 17 retailers

18 retailers£110 GBP to £634 GBP

A+
Cheapest Retailer
-
£110 GBP
$147 USD
A
Retailer 2
-
£122 GBP
$164 USD
View
Final sale: no returns
A
Retailer 3
-
£127 GBP
$170 USD
View
A
Retailer 4
-
£136 GBP
$182 USD
View
Retailer 5
-
£137 GBP
$183 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
£153 GBP
HK$1,600 HKD
View
A
Retailer 7
-
£183 GBP
$245 USD
View
A
Retailer 8
-
£234 GBP
View
A
Retailer 9
-
£246 GBP
ZAR 5,334 ZAR
View
A
Retailer 10
-
£249 GBP
€318 EUR
View
A
Retailer 11
-
£303 GBP
$406 USD
View
A
Retailer 12
-
£332 GBP
$445 USD
View
B+
Retailer 13
-
£347 GBP
A$716 AUD
View
B+
Retailer 14
-
£376 GBP
SGD 681 SGD
View
B+
Retailer 15
-
£396 GBP
$530 USD
View
B+
Retailer 16
-
£436 GBP
$584 USD
View
B+
Retailer 17
-
£460 GBP
$617 USD
View
Most Expensive
B
MOH London
LG788681809 · Nov 1
£634 GBP
View
17 more retailers have this diamond
Prices start from £110 GBPSave up to £524 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+
0.50ct Marquise
£110 GBP