Radiant|Lab Grown|IGI

1.69ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG639468902

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

Certificate IGI LG639468902

Diamond specifications and retailer prices

From HK$4,240 HKD
£426 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: HK$4,240 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 1.69ct lab-grown radiant diamond

This 1.69ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG639468902 or 639468902. 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

1.69
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639468902
Dimensions8.66 × 5.74 × 3.83 mm
L/W Ratio1.51
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.66 mm5.74 mm1.69 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639468902
Side View
Table 63.0%Crown 33.2°Girdle: MediumPavilion 32.5°Culet: NoneDepth 66.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: HK$1,083 HKD|Low: HK$1,083 HKD|High: HK$6,797 HKD|Avg: HK$4,014 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
June 13, 2026
Retailer 1HK$1,083 HKD
Retailer 2HK$1,938 HKD
Retailer 5HK$2,589 HKD
Retailer 3HK$2,871 HKD
Retailer 8HK$3,856 HKD
Retailer 6HK$4,190 HKD
Retailer 9HK$4,370 HKD
Retailer 7HK$5,194 HKD
Retailer 10HK$5,615 HKD
Retailer 4HK$6,764 HKD

62 data points across 10 retailers

1 retailer

B+
Diamond Quarter
1.69SI1GLG025D6EN · Oct 31
HK$4,240 HKD
£426 GBP
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B+
1.69ct Radiant
HK$4,240 HKD