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Radiant|Lab Grown|IGI

1.42ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG639457870

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

Certificate IGI LG639457870

Diamond specifications and retailer prices

From $614 SGD
£377 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $614 SGD 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 1.42ct lab-grown radiant diamond

This 1.42ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG639457870 or 639457870. 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. 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

1.42
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639457870
Dimensions8.08 × 5.57 × 3.74 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.08 mm5.57 mm1.42 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639457870
Side View
Table 62.0%Crown 41.6°Girdle: MediumPavilion 36.2°CuletDepth 67.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $614 SGD|Low: $614 SGD|High: $614 SGD|Avg: $614 SGD
September 26, 2026
Diamond Quarter$614 SGD

1 data point across 1 retailer

1 retailer

B
Diamond Quarter
1.42SI1ELG70A640N · Oct 29
$614 SGD
£377 GBP
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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.

B
1.42ct Radiant
$614 SGD