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Round|Natural|GIA

3.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1523894677

Certificate GIA 1523894677

Diamond specifications and retailer prices

From HK$225,478 HKD
$28,739 USD
As of November 2, 2026
Save HK$122,546 HKD (35%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$348,024 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1523894677. Listed at 7 retailers as of November 1, 2026, with prices from HK$225,478 to HK$348,024, a HK$122,546 spread on the same certified stone. MOH London lists it at HK$348,024. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1523894677
Dimensions9.38 × 9.45 × 5.85 mm
L/W Ratio1.01
Star length50%
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
9.38 mm9.45 mm3.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1523894677
Side View
Table 58.0%Crown 33.5°Girdle: STK-STKPavilion 41.2°Culet: NoneDepth 62.1%

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$348,024 HKD|Low: HK$199,469 HKD|High: HK$352,219 HKD|Avg: HK$252,823 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3HK$225,478 HKD
Retailer 4HK$228,216 HKD
Retailer 6HK$232,123 HKD
Retailer 7HK$237,105 HKD
Retailer 5HK$245,989 HKD
Retailer 2HK$262,849 HKD
MOH LondonHK$348,024 HKD

27 data points across 7 retailers

7 retailersHK$225,478 HKD to HK$348,024 HKD

B+
Cheapest Retailer
-
HK$225,478 HKD
$28,739 USD
Final sale: no returns
B+
Retailer 2
-
HK$228,216 HKD
$29,088 USD
View
B+
Retailer 3
-
HK$232,123 HKD
$29,586 USD
View
B
Retailer 4
-
HK$237,105 HKD
$30,221 USD
View
B
Retailer 5
-
HK$245,989 HKD
$31,353 USD
View
B+
Retailer 6
-
HK$262,849 HKD
€31,907 EUR
View
Most Expensive
B
MOH London
D53CFFBBD · Nov 1
HK$348,024 HKD
£34,928 GBP
View
6 more retailers have this diamond
Prices start from HK$225,478 HKDSave up to HK$122,546 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$225,478 HKD