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Radiant|Natural|GIA

1.21ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 5553821034

Certificate GIA 5553821034

Diamond specifications and retailer prices

From HK$20,299 HKD
As of November 4, 2026
Save HK$21,122 HKD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$41,421 HKD at NZ Jewellers · As of November 5, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553821034. Listed at 13 retailers as of November 4, 2026, with prices from HK$20,299 to HK$41,421, a HK$21,122 spread on the same certified stone. NZ Jewellers lists it at HK$41,421. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553821034
Dimensions6.98 × 5.30 × 3.63 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
6.98 mm5.30 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553821034
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: HK$41,421 HKD|Low: HK$20,299 HKD|High: HK$41,742 HKD|Avg: HK$26,656 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 4HK$20,299 HKD
Retailer 13HK$21,286 HKD
Retailer 5HK$21,945 HKD
Retailer 8HK$23,379 HKD
Retailer 10HK$23,771 HKD
Retailer 12HK$23,771 HKD
Retailer 6HK$24,688 HKD
Retailer 7HK$25,166 HKD
Retailer 3HK$26,028 HKD
Retailer 9HK$26,075 HKD
Retailer 11HK$27,431 HKD
Retailer 2HK$39,540 HKD
NZ JewellersHK$41,421 HKD

29 data points across 13 retailers

13 retailersHK$20,299 HKD to HK$41,421 HKD

A
Cheapest Retailer
-
HK$20,299 HKD
B+
Retailer 2
-
HK$21,286 HKD
View
B+
Retailer 3
-
HK$21,945 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$23,379 HKD
View
Retailer 5
-
HK$23,771 HKD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
HK$23,771 HKD
View
B+
Retailer 7
-
HK$24,688 HKD
View
B+
Retailer 8
-
HK$25,166 HKD
View
B
Retailer 9
-
HK$26,028 HKD
View
B+
Retailer 10
-
HK$26,075 HKD
View
B+
Retailer 11
-
HK$27,431 HKD
View
Retailer 12
-
HK$39,540 HKD
View
Most Expensive
B
NZ Jewellers
b4174110-3705-4efe-92d9-c6361fdc8e45 · Nov 5
HK$41,421 HKD
$5,285 USD
View
12 more retailers have this diamond
Prices start from HK$20,299 HKDSave up to HK$21,122 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$20,299 HKD