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Round|Natural|GIA

3.21ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 1493947605

Certificate GIA 1493947605

Diamond specifications and retailer prices

From HK$121,993 HKD
As of November 4, 2026
Save HK$28,761 HKD (19%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$171,771 HKD at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 3.21ct natural round diamond

This 3.21ct natural round sits in the three to five carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1493947605. Listed at 13 retailers as of November 4, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1493947605
Dimensions9.49 × 9.53 × 5.83 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Culet sizeNone
Cert comments
Additional clouds pinpoints internal graining and surface graining are not shown.
Top View
9.49 mm9.53 mm3.21 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1493947605
Side View
Table 56.0%Crown 34.5°GirdlePavilion 40.8°Culet: NoneDepth 61.3%

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 4
Current: HK$126,614 HKD|Low: HK$120,816 HKD|High: HK$170,821 HKD|Avg: HK$143,621 HKD|-13.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6HK$121,993 HKD
Retailer 7HK$123,044 HKD
Retailer 4HK$126,543 HKD
Retailer 1HK$126,614 HKD
Retailer 5HK$140,978 HKD
Retailer 2HK$143,622 HKD
Retailer 8HK$147,152 HKD
Retailer 3HK$150,753 HKD

42 data points across 8 retailers

13 retailersHK$121,993 HKD to HK$150,753 HKD

A
Cheapest Retailer
-
HK$121,993 HKD
A
Retailer 2
-
HK$123,044 HKD
View
B+
Retailer 3
-
HK$126,543 HKD
View
B+
Retailer 4
-
HK$126,614 HKD
View
B+
Retailer 5
-
HK$140,978 HKD
View
B+
Retailer 6
-
HK$143,622 HKD
View
Retailer 7
-
HK$144,995 HKD
View
Price last confirmed 53 days ago
Retailer 8
-
HK$150,565 HKD
View
Price last confirmed 53 days ago
B+
Retailer 9
-
HK$150,753 HKD
View
Retailer 10
-
HK$154,511 HKD
View
Price last confirmed 38 days ago
Retailer 11
-
HK$159,422 HKD
View
Price last confirmed 36 days ago
Retailer 12
-
HK$165,549 HKD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
3fee2b49-c1c0-44fa-9964-eb392d633b56 · Sep 15
HK$171,771 HKD
$21,895 USD
View
Price last confirmed 52 days ago
12 more retailers have this diamond
Prices start from HK$121,993 HKDSave up to HK$28,761 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
3.21ct Round
HK$121,993 HKD