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Radiant|Lab Grown|IGI

1.00ct H SI1 Radiant Lab Grown Diamond

H/SI1 • IGI LG640489262

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

Certificate IGI LG640489262

Diamond specifications and retailer prices

From €399 EUR
£351 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: €399 EUR at MD Diamonds and Jewellers
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 MD Diamonds and Jewellers

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included) and certified by IGI LG640489262 or 640489262. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
H
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640489262
Dimensions6.83 × 5.06 × 3.39 mm
L/W Ratio1.35
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.83 mm5.06 mm1.00 ctH / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640489262
Side View
Table 67.0%Crown 46.9°Girdle: MediumPavilion 35.9°Culet: NoneDepth 67.0%

Caratlytics Score

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

Last verified: Oct 29
Current: €399 EUR|Low: €399 EUR|High: €399 EUR|Avg: €399 EUR
December 30, 2025
MD Diamonds and Jewellers€399 EUR

3 data points across 1 retailer

1 retailer

B+
MD Diamonds and Jewellers
LG640489262 · Oct 29
€399 EUR
£351 GBP
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B+
1.00ct Radiant
€399 EUR