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Radiant|Lab Grown|IGI

1.28ct H VS1 Radiant Lab Grown Diamond

EX • H/VS1 • IGI LG623444148

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

Certificate IGI LG623444148

Diamond specifications and retailer prices

From €398 EUR
£352 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: €398 EUR 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 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG623444148 or 623444148. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623444148
Dimensions7.55 × 5.38 × 3.63 mm
L/W Ratio1.40
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
7.55 mm5.38 mm1.28 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623444148
Side View
Table 67.0%Crown 45.5°Girdle: MediumPavilion 36.1°CuletDepth 67.5%

Caratlytics Score

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

Last verified: Nov 2
Current: €398 EUR|Low: €398 EUR|High: €398 EUR|Avg: €398 EUR
September 26, 2026
Diamond Quarter€398 EUR

1 data point across 1 retailer

1 retailer

B+
Diamond Quarter
1.28VS1HLG48E5C0N · Nov 2
€398 EUR
£352 GBP
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B+
1.28ct Radiant
€398 EUR