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Round|Natural|GIA

3.21ct D SI1 Round Natural Diamond

EX • D/SI1

Diamond specifications and retailer prices

From HK$366,096 HKD
As of November 5, 2026
Save HK$33,438 HKD (8%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$399,534 HKD at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 3.21ct natural round diamond

This 3.21ct natural round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 2 retailers as of November 5, 2026, with a relatively tight 9% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
Dimensions9.41 × 9.47 × 5.86 mm
L/W Ratio1.01
Top View
9.41 mm9.47 mm3.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA
Side View
Table 59.0%CrownGirdle: STNPavilionCulet: NDepth 62.0%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: HK$399,534 HKD|Low: HK$366,096 HKD|High: HK$480,181 HKD|Avg: HK$419,593 HKD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
September 13, 2026
Retailer 3HK$366,096 HKD
Retailer 2HK$377,848 HKD
Diamond Exchange CanadaHK$399,534 HKD
Retailer 4HK$480,181 HKD

4 data points across 4 retailers

2 retailersHK$366,096 HKD to HK$399,534 HKD

B+
Cheapest Retailer
-
HK$366,096 HKD
Most Expensive
B
Diamond Exchange Canada
1945320248 · Nov 5
HK$399,534 HKD
CA$70,732 CAD
View
1 more retailer has this diamond
Prices start from HK$366,096 HKDSave up to HK$33,438 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$366,096 HKD