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Radiant|Lab Grown|IGI

1.38ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG648427694

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

Certificate IGI LG648427694

Diamond specifications and retailer prices

From $660 SGD
£406 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: $660 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 1.38ct lab-grown radiant diamond

This 1.38ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648427694 or 648427694. 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. 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

1.38
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648427694
Dimensions7.64 × 5.55 × 3.74 mm
L/W Ratio1.38
Top View
7.64 mm5.55 mm1.38 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648427694
Side View
Table 63.0%Crown 43.6°Girdle: MediumPavilion 35°CuletDepth 67.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $660 SGD|Low: $660 SGD|High: $660 SGD|Avg: $660 SGD
September 26, 2026
Diamond Quarter$660 SGD

1 data point across 1 retailer

1 retailer

B
Diamond Quarter
1.38SI1DLG942665N · Oct 31
$660 SGD
£406 GBP
View

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B
1.38ct Radiant
$660 SGD