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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5546359913

Certificate GIA 5546359913

Diamond specifications and retailer prices

From HK$16,427 HKD
As of November 6, 2026
Save HK$26,483 HKD (62%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$42,910 HKD at NZ Jewellers · As of September 21, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5546359913. Listed at 17 retailers as of November 6, 2026, with a 161% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5546359913
Dimensions6.78 × 6.81 × 4.21 mm
L/W Ratio1.00
Top View
6.78 mm6.81 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546359913
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.9%

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 6
Current: HK$42,910 HKD|Low: HK$14,930 HKD|High: HK$42,910 HKD|Avg: HK$25,735 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7HK$16,427 HKD
Retailer 8HK$18,590 HKD
Retailer 2HK$19,468 HKD
Retailer 3HK$19,492 HKD
Retailer 5HK$21,796 HKD
Retailer 6HK$24,124 HKD
Retailer 4HK$35,762 HKD
NZ JewellersHK$42,910 HKD

38 data points across 8 retailers

17 retailersHK$16,427 HKD to HK$42,910 HKD

A
Cheapest Retailer
-
HK$16,427 HKD
Final sale: no returns
A
Retailer 2
-
HK$16,466 HKD
View
A
Retailer 3
-
HK$16,952 HKD
View
Retailer 4
-
HK$18,590 HKD
View
Price last confirmed 45 days ago
A
Retailer 5
-
HK$18,590 HKD
View
A
Retailer 6
-
HK$19,468 HKD
View
A
Retailer 7
-
HK$19,492 HKD
View
Retailer 8
-
HK$19,672 HKD
View
Price last confirmed 31 days ago
Retailer 9
-
HK$21,451 HKD
View
Price last confirmed 46 days ago
B+
Retailer 10
-
HK$21,553 HKD
View
B+
Retailer 11
-
HK$21,553 HKD
View
A
Retailer 12
-
HK$21,796 HKD
View
B+
Retailer 13
-
HK$22,337 HKD
View
B+
Retailer 14
-
HK$24,124 HKD
View
B
Retailer 15
-
HK$35,762 HKD
View
B
Retailer 16
-
HK$42,910 HKD
View
Most Expensive
NZ Jewellers
6429a346-531a-4350-8fc7-527f5db21abd · Sep 21
HK$42,910 HKD
$5,475 USD
View
Price last confirmed 46 days ago
16 more retailers have this diamond
Prices start from HK$16,427 HKDSave up to HK$26,483 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$16,427 HKD