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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6452098443

Certificate GIA 6452098443

Diamond specifications and retailer prices

From HK$36,013 HKD
As of November 4, 2026
Save HK$33,121 HKD (48%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$78,907 HKD at NZ Jewellers · As of November 7, 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 6452098443. Listed at 20 retailers as of November 4, 2026, with a 92% 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 6452098443
Dimensions6.81 × 6.76 × 4.26 mm
L/W Ratio1.01
Top View
6.81 mm6.76 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452098443
Side View
Table 57.0%Crown 35.5°Girdle: ThickPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
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$41,319 HKD|Low: HK$32,878 HKD|High: HK$70,341 HKD|Avg: HK$46,792 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 8HK$36,013 HKD
Retailer 9HK$39,453 HKD
Retailer 11HK$40,080 HKD
Retailer 1HK$41,319 HKD
Retailer 10HK$42,737 HKD
Retailer 5HK$45,261 HKD
Retailer 2HK$46,601 HKD
Retailer 6HK$46,601 HKD
Retailer 3HK$49,313 HKD
Retailer 7HK$50,097 HKD
Retailer 4HK$69,134 HKD

43 data points across 11 retailers

20 retailersHK$36,013 HKD to HK$69,134 HKD

B
Cheapest Retailer
-
HK$36,013 HKD
B
Retailer 2
-
HK$36,232 HKD
View
B
Retailer 3
-
HK$37,275 HKD
View
B
Retailer 4
-
HK$39,453 HKD
View
Final sale: no returns
B
Retailer 5
-
HK$40,080 HKD
View
B
Retailer 6
-
HK$41,319 HKD
View
B
Retailer 7
-
HK$42,737 HKD
View
B
Retailer 8
-
HK$42,737 HKD
View
B
Retailer 9
-
HK$42,737 HKD
View
B
Retailer 10
-
HK$45,261 HKD
View
B
Retailer 11
-
HK$46,601 HKD
View
B
Retailer 12
-
HK$46,601 HKD
View
B
Retailer 13
-
HK$47,730 HKD
View
B
Retailer 14
-
HK$47,730 HKD
View
B
Retailer 15
-
HK$49,313 HKD
View
B
Retailer 16
-
HK$49,376 HKD
View
B
Retailer 17
-
HK$50,097 HKD
View
Retailer 18
-
HK$52,025 HKD
View
Price last confirmed 15 days ago
B
Retailer 19
-
HK$69,134 HKD
View
Most Expensive
NZ Jewellers
2dbbae6e-fc61-4a8c-82e7-79b5176a6a54 · Nov 7
HK$78,907 HKD
$10,068 USD
View
Price under review
19 more retailers have this diamond
Prices start from HK$36,013 HKDSave up to HK$33,121 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.

B
1.21ct Round
HK$36,013 HKD