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Marquise|Lab Grown|IGI

0.50ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • IGI LG436047602

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436047602

Diamond specifications and retailer prices

From £224 GBP
$300 USD
As of November 2, 2026
Save £887 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,110 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436047602 or 436047602. Listed at 12 retailers as of November 1, 2026, with prices from £224 to £1,110, a £887 spread on the same certified stone. MOH London lists it at £1,110. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.1°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047602
Dimensions7.80 × 4.34 × 2.66 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.80 mm4.34 mm0.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436047602
Side View
Table 63.0%Crown 34.1°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,110 GBP|Low: £215 GBP|High: £1,123 GBP|Avg: £550 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
November 1, 2026
Retailer 11£224 GBP
Retailer 2£238 GBP
Retailer 3£250 GBP
Retailer 8£251 GBP
Retailer 15£259 GBP
Retailer 12£277 GBP
Retailer 16£277 GBP
Retailer 5£395 GBP
Retailer 14£453 GBP
Retailer 9£508 GBP
Retailer 6£547 GBP
Retailer 10£851 GBP
Retailer 13£891 GBP
Retailer 4£1,057 GBP
MOH London£1,110 GBP
Retailer 7£1,113 GBP

22 data points across 16 retailers

12 retailers£224 GBP to £1,110 GBP

A
Cheapest Retailer
-
£224 GBP
$300 USD
A
Retailer 2
-
£238 GBP
$320 USD
View
B+
Retailer 3
-
£250 GBP
$335 USD
View
Final sale: no returns
B+
Retailer 4
-
£259 GBP
$348 USD
View
Retailer 5
-
£277 GBP
$372 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£277 GBP
$372 USD
View
B
Retailer 7
-
£453 GBP
$608 USD
View
Retailer 8
-
£508 GBP
€649 EUR
View
Price last confirmed 8 days ago
B
Retailer 9
-
£851 GBP
$1,142 USD
View
B
Retailer 10
-
£891 GBP
$1,195 USD
View
B
Retailer 11
-
£1,057 GBP
$1,419 USD
View
Most Expensive
B
MOH London
LG436047602 · Nov 1
£1,110 GBP
View
11 more retailers have this diamond
Prices start from £224 GBPSave up to £887 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
£224 GBP