CaratHunter
Plans
Round|Natural|GIA

1.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7541433747

Certificate GIA 7541433747

Diamond specifications and retailer prices

From HK$15,353 HKD
As of November 5, 2026
Save HK$19,836 HKD (56%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$35,190 HKD at NZ Jewellers · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7541433747. Listed at 11 retailers as of November 5, 2026, with prices from HK$15,353 to HK$35,190, a HK$19,836 spread on the same certified stone. NZ Jewellers lists it at HK$35,190. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7541433747
Dimensions6.80 × 6.76 × 4.22 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle
Top View
6.80 mm6.76 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541433747
Side View
Table 59.0%Crown 35.5°GirdlePavilion 41°Culet: NoneDepth 62.3%

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 5
Current: HK$35,190 HKD|Low: HK$14,241 HKD|High: HK$40,825 HKD|Avg: HK$21,881 HKD|-13.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10HK$15,353 HKD
Retailer 7HK$15,534 HKD
Retailer 2HK$15,886 HKD
Retailer 3HK$16,835 HKD
Retailer 8HK$17,611 HKD
Retailer 4HK$19,358 HKD
Retailer 9HK$19,421 HKD
Retailer 5HK$22,807 HKD
Retailer 6HK$29,406 HKD
Retailer 11HK$30,511 HKD
NZ JewellersHK$35,190 HKD

43 data points across 11 retailers

11 retailersHK$15,353 HKD to HK$35,190 HKD

A
Cheapest Retailer
-
HK$15,353 HKD
A
Retailer 2
-
HK$15,534 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$15,886 HKD
View
B+
Retailer 4
-
HK$16,835 HKD
View
B+
Retailer 5
-
HK$17,611 HKD
View
B+
Retailer 6
-
HK$19,358 HKD
View
B+
Retailer 7
-
HK$19,421 HKD
View
B
Retailer 8
-
HK$22,807 HKD
View
B
Retailer 9
-
HK$29,406 HKD
View
B
Retailer 10
-
HK$30,511 HKD
View
Most Expensive
B
NZ Jewellers
8dbac2f0-1cc8-43ae-bf97-1e4325459bfa · Nov 5
HK$35,190 HKD
$4,490 USD
View
10 more retailers have this diamond
Prices start from HK$15,353 HKDSave up to HK$19,836 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$15,353 HKD