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1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • HRD 240000199388

Certificate HRD 240000199388

Diamond specifications and retailer prices

From HK$15,620 HKD
As of November 4, 2026
Save HK$20,526 HKD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$36,146 HKD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 240000199388. Listed at 14 retailers as of November 2, 2026, with prices from HK$15,620 to HK$36,146, a HK$20,526 spread on the same certified stone. NZ Jewellers lists it at HK$36,146. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.2°
Pavilion angle41.4°
OriginNatural
Grading LabHRD
CertificateHRD 240000199388
Dimensions6.75 × 6.71 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
The stone in accordance with the mentioned number has been identified as a natural gem diamond.
Top View
6.75 mm6.71 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateHRD 240000199388
Side View
Table 58.0%Crown 35.2°Girdle: MediumPavilion 41.4°Culet: NoneDepth 63.4%

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$36,146 HKD|Low: HK$14,625 HKD|High: HK$36,146 HKD|Avg: HK$20,860 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4HK$15,620 HKD
Retailer 5HK$15,949 HKD
Retailer 7HK$16,466 HKD
Retailer 8HK$17,289 HKD
Retailer 10HK$17,289 HKD
Retailer 6HK$18,089 HKD
Retailer 9HK$19,946 HKD
Retailer 2HK$21,545 HKD
Retailer 3HK$30,205 HKD
NZ JewellersHK$36,146 HKD

27 data points across 10 retailers

14 retailersHK$15,620 HKD to HK$36,146 HKD

A
Cheapest Retailer
-
HK$15,620 HKD
A
Retailer 2
-
HK$15,949 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$16,466 HKD
View
Retailer 4
-
HK$17,289 HKD
View
Price last confirmed 54 days ago
Retailer 5
-
HK$17,289 HKD
View
Price last confirmed 26 days ago
A
Retailer 6
-
HK$17,289 HKD
View
A
Retailer 7
-
HK$18,089 HKD
View
Retailer 8
-
HK$19,946 HKD
View
Price last confirmed 54 days ago
A
Retailer 9
-
HK$19,946 HKD
View
A
Retailer 10
-
HK$21,545 HKD
View
B+
Retailer 11
-
HK$30,205 HKD
View
B
Retailer 12
-
HK$33,944 HKD
View
Retailer 13
-
HK$36,146 HKD
View
Price last confirmed 53 days ago
Most Expensive
B
NZ Jewellers
3400ff51-b38b-445a-a925-c9e3f6b5b1aa · Nov 2
HK$36,146 HKD
$4,612 USD
View
13 more retailers have this diamond
Prices start from HK$15,620 HKDSave up to HK$20,526 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 Round
HK$15,620 HKD