Radiant|Lab Grown|IGI

0.50ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG542212300

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG542212300

Diamond specifications and retailer prices

From £92 GBP
$123 USD
As of October 30, 2026
Save £855 GBP (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £947 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct lab-grown radiant diamond

This 0.5ct lab-grown radiant 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 LG542212300 or 542212300. Listed at 12 retailers as of October 30, 2026, with prices from £92 to £947, a £855 spread on the same certified stone. MOH London lists it at £947. 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
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle29.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG542212300
Dimensions5.41 × 3.90 × 2.62 mm
L/W Ratio1.39
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.41 mm3.90 mm0.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG542212300
Side View
Table 63.0%Crown 36.7°Girdle: STK-THKPavilion 29.6°Culet: NoneDepth 67.2%

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: Oct 30
Current: £947 GBP|Low: £88 GBP|High: £958 GBP|Avg: £312 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
November 1, 2026
Retailer 9£92 GBP
Retailer 13£106 GBP
Retailer 10£121 GBP
Retailer 14£121 GBP
Retailer 2£202 GBP
Retailer 12£219 GBP
Retailer 4£220 GBP
Retailer 7£274 GBP
Retailer 3£283 GBP
Retailer 6£362 GBP
Retailer 11£364 GBP
Retailer 8£406 GBP
Retailer 5£429 GBP
MOH London£947 GBP

20 data points across 14 retailers

12 retailers£92 GBP to £947 GBP

A
Cheapest Retailer
-
£92 GBP
$123 USD
A
Retailer 2
-
£106 GBP
$142 USD
View
Retailer 3
-
£121 GBP
$162 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£121 GBP
$162 USD
View
A
Retailer 5
-
£202 GBP
$270 USD
View
B+
Retailer 6
-
£219 GBP
$293 USD
View
B+
Retailer 7
-
£220 GBP
HK$2,300 HKD
View
B+
Retailer 8
-
£274 GBP
View
B
Retailer 9
-
£283 GBP
$379 USD
View
B
Retailer 10
-
£364 GBP
$488 USD
View
B
Retailer 11
-
£406 GBP
$544 USD
View
Most Expensive
B
MOH London
LG542212300 · Nov 1
£947 GBP
View
11 more retailers have this diamond
Prices start from £92 GBPSave up to £855 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 Radiant
£92 GBP