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Radiant|Lab Grown|IGI

8.21ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG600352398

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

Certificate IGI LG600352398

Diamond specifications and retailer prices

From HK$66,849 HKD
$8,520 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: HK$66,849 HKD at Brilliant Earth
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 Brilliant Earth

About this 8.21ct lab-grown radiant diamond

This 8.21ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG600352398 or 600352398. Listed at a single retailer as of November 2, 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

8.21
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.3°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600352398
Dimensions14.32 × 9.56 × 6.60 mm
L/W Ratio1.50
Culet sizePointed
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
14.32 mm9.56 mm8.21 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600352398
Side View
Table 68.0%Crown 48.3°Girdle: STK-THKPavilion 32.8°Culet: NoneDepth 69.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: HK$66,849 HKD|Low: HK$13,260 HKD|High: HK$103,333 HKD|Avg: HK$45,126 HKD|-31.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
August 23, 2026
Retailer 4HK$13,260 HKD
Retailer 5HK$15,206 HKD
Retailer 6HK$19,687 HKD
Retailer 2HK$29,085 HKD
Retailer 7HK$33,605 HKD
Retailer 3HK$38,563 HKD
Retailer 9HK$46,858 HKD
Retailer 8HK$59,262 HKD
Brilliant EarthHK$66,849 HKD
Retailer 10HK$82,227 HKD

68 data points across 10 retailers

1 retailer

B
Brilliant Earth
12007342B · Nov 2
HK$66,849 HKD
$8,520 USD
View

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B
8.21ct Radiant
HK$66,849 HKD