CaratHunter
Plans
Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5563654767

Certificate GIA 5563654767

Diamond specifications and retailer prices

From HK$16,749 HKD
As of November 1, 2026
Save HK$20,855 HKD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$47,017 HKD at NZ Jewellers · As of October 30, 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 5563654767. Listed at 18 retailers as of November 1, 2026, with a 125% 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5563654767
Dimensions6.78 × 6.74 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.78 mm6.74 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5563654767
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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 1
Current: HK$47,017 HKD|Low: HK$16,051 HKD|High: HK$47,017 HKD|Avg: HK$23,629 HKD|+3.5%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 3HK$16,749 HKD
Retailer 12HK$17,046 HKD
Retailer 18HK$18,473 HKD
Retailer 8HK$18,912 HKD
Retailer 14HK$19,437 HKD
Retailer 17HK$20,753 HKD
Retailer 7HK$20,965 HKD
Retailer 6HK$21,043 HKD
Retailer 10HK$21,717 HKD
Retailer 16HK$22,486 HKD
Retailer 11HK$22,556 HKD
Retailer 9HK$23,277 HKD
Retailer 2HK$23,896 HKD
Retailer 4HK$24,225 HKD
Retailer 5HK$25,950 HKD
Retailer 13HK$26,271 HKD
Retailer 19HK$27,533 HKD
Retailer 15HK$37,604 HKD
NZ JewellersHK$47,017 HKD

13 data points across 19 retailers

18 retailersHK$16,749 HKD to HK$37,604 HKD

A
Cheapest Retailer
-
HK$16,749 HKD
A
Retailer 2
-
HK$17,046 HKD
View
A
Retailer 3
-
HK$18,473 HKD
View
A
Retailer 4
-
HK$18,912 HKD
View
A
Retailer 5
-
HK$19,437 HKD
View
A
Retailer 6
-
HK$20,965 HKD
View
A
Retailer 7
-
HK$21,043 HKD
View
Retailer 8
-
HK$21,717 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$22,486 HKD
View
Retailer 10
-
HK$22,556 HKD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
HK$23,277 HKD
View
B+
Retailer 12
-
HK$23,896 HKD
View
B+
Retailer 13
-
HK$24,225 HKD
View
B+
Retailer 14
-
HK$25,950 HKD
View
B+
Retailer 15
-
HK$26,271 HKD
View
B+
Retailer 16
-
HK$27,533 HKD
View
B
Retailer 17
-
HK$37,604 HKD
View
Most Expensive
NZ Jewellers
70cd373a-5ba6-4d13-8090-58c9fbdf3b5b · Oct 30
HK$47,017 HKD
$5,999 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from HK$16,749 HKDSave up to HK$20,855 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$16,749 HKD