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Radiant|Lab Grown|IGI

4.18ct H VS1 Radiant Lab Grown Diamond

EX • H/VS1 • IGI LG633449056

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

Certificate IGI LG633449056

Diamond specifications and retailer prices

From £1,009 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: £1,009 GBP at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 4.18ct lab-grown radiant diamond

This 4.18ct lab-grown radiant sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG633449056 or 633449056. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.18
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG633449056
Dimensions11.36 × 7.92 × 5.29 mm
L/W Ratio1.43
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
11.36 mm7.92 mm4.18 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG633449056
Side View
Table 64.0%Crown 46.9°Girdle: MediumPavilion 34.5°CuletDepth 66.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: £1,009 GBP|Low: £1,009 GBP|High: £1,009 GBP|Avg: £1,009 GBP
September 26, 2026
Diamond Quarter£1,009 GBP

1 data point across 1 retailer

1 retailer

B+
Diamond Quarter
4.18VS1HLG56F075N · Oct 31
£1,009 GBP
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B+
4.18ct Radiant
£1,009 GBP