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3.21ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7521948110

Certificate GIA 7521948110

Diamond specifications and retailer prices

From HK$294,289 HKD
CA$52,094 CAD
As of October 30, 2026
Save HK$73,826 HKD (20%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$368,115 HKD at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

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 7521948110. Listed at 7 retailers as of October 30, 2026, with prices from HK$294,289 to HK$368,115, a HK$73,826 spread on the same certified stone. The Diamond Guys lists it at HK$368,115. 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 angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7521948110
Dimensions9.35 × 9.40 × 5.84 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Feather, Crystal, Cloud, Pinpoint
Top View
9.35 mm9.40 mm3.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7521948110
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°CuletDepth 62.2%

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: Oct 30
Current: HK$368,010 HKD|Low: HK$294,289 HKD|High: HK$370,613 HKD|Avg: HK$329,919 HKD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
November 1, 2026
Retailer 5HK$294,289 HKD
Retailer 2HK$298,706 HKD
Retailer 6HK$309,725 HKD
Retailer 7HK$311,051 HKD
Retailer 3HK$330,038 HKD
Retailer 4HK$363,041 HKD
Retailer 1HK$368,010 HKD
The Diamond GuysHK$368,115 HKD

21 data points across 8 retailers

7 retailersHK$294,289 HKD to HK$368,115 HKD

B+
Cheapest Retailer
-
HK$294,289 HKD
CA$52,094 CAD
B+
Retailer 2
-
HK$298,706 HKD
$38,071 USD
View
B
Retailer 3
-
HK$309,725 HKD
$39,475 USD
View
B
Retailer 4
-
HK$330,038 HKD
$42,064 USD
View
B
Retailer 5
-
HK$363,041 HKD
$46,270 USD
View
B
Retailer 6
-
HK$368,010 HKD
€44,670 EUR
View
Most Expensive
B
The Diamond Guys
1966850820 · Nov 2
HK$368,115 HKD
$46,917 USD
View
6 more retailers have this diamond
Prices start from HK$294,289 HKDSave up to HK$73,826 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$294,289 HKD