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Marquise|Lab Grown|IGI

0.50ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG805672502

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805672502

Diamond specifications and retailer prices

From £62 GBP
$83 USD
As of October 23, 2026
Save £507 GBP (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £569 GBP at MOH London · As of October 25, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805672502 or 805672502. Listed at 15 retailers as of October 23, 2026, with prices from £62 to £569, a £507 spread on the same certified stone. MOH London lists it at £569. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.6°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805672502
Dimensions8.03 × 4.31 × 2.51 mm
L/W Ratio1.86
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.03 mm4.31 mm0.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG805672502
Side View
Table 59.0%Crown 32.6°Girdle: VTN-MEDPavilion 38.2°Culet: NoneDepth 58.2%

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 23
Current: £569 GBP|Low: £60 GBP|High: £581 GBP|Avg: £192 GBP|-1.0%
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
October 27, 2026
Retailer 10£62 GBP
Retailer 4£69 GBP
Retailer 9£72 GBP
Retailer 12£83 GBP
Retailer 5£120 GBP
Retailer 8£131 GBP
Retailer 7£149 GBP
Retailer 13£163 GBP
Retailer 14£168 GBP
Retailer 3£198 GBP
Retailer 11£249 GBP
Retailer 6£252 GBP
Retailer 2£278 GBP
MOH London£569 GBP

40 data points across 14 retailers

15 retailers£62 GBP to £569 GBP

A
Cheapest Retailer
-
£62 GBP
$83 USD
A
Retailer 2
-
£72 GBP
$96 USD
View
A
Retailer 3
-
£83 GBP
$110 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
£96 GBP
HK$1,000 HKD
View
A
Retailer 5
-
£120 GBP
$160 USD
View
A
Retailer 6
-
£131 GBP
View
A
Retailer 7
-
£149 GBP
€189 EUR
View
B+
Retailer 8
-
£163 GBP
$217 USD
View
B+
Retailer 9
-
£168 GBP
$224 USD
View
Price last confirmed 11 days ago
B+
Retailer 10
-
£198 GBP
View
B+
Retailer 11
-
£226 GBP
SGD 406 SGD
View
B+
Retailer 12
-
£249 GBP
$332 USD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
£252 GBP
$336 USD
View
B
Retailer 14
-
£278 GBP
$370 USD
View
Most Expensive
B
MOH London
LG805672502 · Oct 25
£569 GBP
View
14 more retailers have this diamond
Prices start from £62 GBPSave up to £507 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
£62 GBP