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Radiant|Lab Grown|IGI

1.30ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG634478342

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

Certificate IGI LG634478342

Diamond specifications and retailer prices

From HK$3,812 HKD
£383 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: HK$3,812 HKD 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 1.3ct lab-grown radiant diamond

This 1.3ct 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 LG634478342 or 634478342. 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

1.30
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634478342
Dimensions7.73 × 5.34 × 3.61 mm
L/W Ratio1.45
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
7.73 mm5.34 mm1.30 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634478342
Side View
Table 66.0%Crown 44.2°Girdle: Slightly ThickPavilion 34.7°CuletDepth 67.6%

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: HK$3,812 HKD|Low: HK$3,812 HKD|High: HK$3,812 HKD|Avg: HK$3,812 HKD
September 26, 2026
Diamond QuarterHK$3,812 HKD

1 data point across 1 retailer

1 retailer

B
Diamond Quarter
1.3SI1ELG426D1DN · Oct 29
HK$3,812 HKD
£383 GBP
View

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B
1.30ct Radiant
HK$3,812 HKD