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Round|Natural|GIA

3.21ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6555441578

Certificate GIA 6555441578

Diamond specifications and retailer prices

From HK$267,992 HKD
CA$47,439 CAD
As of November 2, 2026
Save HK$171,305 HKD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$439,297 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 3.21ct natural round diamond

This 3.21ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555441578. Listed at 12 retailers as of November 1, 2026, with prices from HK$267,992 to HK$439,297, a HK$171,305 spread on the same certified stone. MOH London lists it at HK$439,297. 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

3.21
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555441578
Dimensions9.43 × 9.37 × 5.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
9.43 mm9.37 mm3.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555441578
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$439,297 HKD|Low: HK$235,154 HKD|High: HK$444,588 HKD|Avg: HK$300,696 HKD|-1.2%
MOH London
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
November 2, 2026
Retailer 5HK$236,481 HKD
Retailer 6HK$248,306 HKD
Retailer 10HK$267,992 HKD
Retailer 3HK$269,665 HKD
Retailer 14HK$281,910 HKD
Retailer 2HK$283,998 HKD
Retailer 4HK$296,269 HKD
Retailer 8HK$296,269 HKD
Retailer 11HK$297,948 HKD
Retailer 9HK$306,155 HKD
Retailer 7HK$332,230 HKD
Retailer 12HK$332,329 HKD
Retailer 13HK$335,308 HKD
MOH LondonHK$439,297 HKD

30 data points across 14 retailers

12 retailersHK$267,992 HKD to HK$439,297 HKD

B+
Cheapest Retailer
-
HK$267,992 HKD
CA$47,439 CAD
B+
Retailer 2
-
HK$269,665 HKD
$34,369 USD
View
B+
Retailer 3
-
HK$281,910 HKD
$35,930 USD
View
B+
Retailer 4
-
HK$283,998 HKD
£28,501 GBP
View
B+
Retailer 5
-
HK$296,269 HKD
$37,760 USD
View
B+
Retailer 6
-
HK$296,269 HKD
$37,760 USD
View
B+
Retailer 7
-
HK$297,948 HKD
$37,974 USD
View
B
Retailer 8
-
HK$306,155 HKD
$39,020 USD
View
B+
Retailer 9
-
HK$332,230 HKD
€40,327 EUR
View
B
Retailer 10
-
HK$332,329 HKD
$42,356 USD
View
B
Retailer 11
-
HK$335,308 HKD
$42,736 USD
View
Most Expensive
B
MOH London
059A526E6 · Nov 1
HK$439,297 HKD
£44,086 GBP
View
11 more retailers have this diamond
Prices start from HK$267,992 HKDSave up to HK$171,305 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+
3.21ct Round
HK$267,992 HKD