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Radiant|Natural|GIA

1.21ct F SI2 Radiant Natural Diamond

ID • F/SI2 • GIA 6535454075

Certificate GIA 6535454075

Diamond specifications and retailer prices

From HK$19,264 HKD
As of November 7, 2026
Save HK$23,951 HKD (55%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$43,215 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535454075. Listed at 7 retailers as of November 3, 2026, with prices from HK$19,264 to HK$43,215, a HK$23,951 spread on the same certified stone. NZ Jewellers lists it at HK$43,215. 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

1.21
Carat
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.59°
Pavilion angle30.55°
OriginNatural
Grading LabGIA
CertificateGIA 6535454075
Dimensions7.07 × 5.31 × 3.48 mm
L/W Ratio1.33
Top View
7.07 mm5.31 mm1.21 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6535454075
Side View
Table 69.0%Crown 44.59°Girdle: ThickPavilion 30.55°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: HK$43,215 HKD|Low: HK$18,849 HKD|High: HK$43,897 HKD|Avg: HK$26,626 HKD|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 5HK$19,264 HKD
Retailer 2HK$20,456 HKD
Retailer 6HK$20,667 HKD
Retailer 4HK$21,467 HKD
Retailer 7HK$21,811 HKD
Retailer 3HK$36,021 HKD
NZ JewellersHK$43,215 HKD

42 data points across 7 retailers

7 retailersHK$19,264 HKD to HK$43,215 HKD

A
Cheapest Retailer
-
HK$19,264 HKD
A
Retailer 2
-
HK$20,456 HKD
View
A
Retailer 3
-
HK$20,667 HKD
View
A
Retailer 4
-
HK$21,467 HKD
View
A
Retailer 5
-
HK$21,811 HKD
View
B
Retailer 6
-
HK$36,021 HKD
View
Most Expensive
B
NZ Jewellers
18e3931d-a2ec-49e6-b7f6-3e20b5d3d02a · Nov 3
HK$43,215 HKD
$5,514 USD
View
6 more retailers have this diamond
Prices start from HK$19,264 HKDSave up to HK$23,951 HKD

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.

A
1.21ct Radiant
HK$19,264 HKD