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Round|Natural|GIA

3.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2221820466

Certificate GIA 2221820466

Diamond specifications and retailer prices

From HK$333,655 HKD
$42,525 USD
As of November 1, 2026
Save HK$275,766 HKD (45%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$609,422 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 3.5ct natural round diamond

This 3.5ct 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 2221820466. Listed at 20 retailers as of November 1, 2026, with prices from HK$333,655 to HK$609,422, a HK$275,766 spread on the same certified stone. MOH London lists it at HK$609,422. 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

3.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2221820466
Dimensions9.75 × 9.69 × 5.96 mm
L/W Ratio1.01
Culet sizeNone
Top View
9.75 mm9.69 mm3.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2221820466
Side View
Table 60.0%Crown 33.5°Girdle: ThickPavilion 41.4°Culet: NoneDepth 61.4%

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 1
Current: HK$609,422 HKD|Low: HK$333,655 HKD|High: HK$616,766 HKD|Avg: HK$417,815 HKD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 6HK$333,655 HKD
Retailer 4HK$352,928 HKD
Retailer 8HK$353,632 HKD
Retailer 7HK$373,558 HKD
Retailer 2HK$390,450 HKD
Retailer 9HK$406,475 HKD
Retailer 3HK$457,479 HKD
Retailer 5HK$505,861 HKD
MOH LondonHK$609,422 HKD

36 data points across 9 retailers

20 retailersHK$333,655 HKD to HK$609,422 HKD

B+
Cheapest Retailer
-
HK$333,655 HKD
$42,525 USD
B+
Retailer 2
-
HK$352,928 HKD
₹4,283,933 INR
View
B+
Retailer 3
-
HK$353,286 HKD
$45,027 USD
View
B+
Retailer 4
-
HK$353,632 HKD
$45,071 USD
View
B+
Retailer 5
-
HK$365,445 HKD
CA$64,690 CAD
View
Retailer 6
-
HK$373,558 HKD
A$73,247 AUD
View
Price last confirmed 30 days ago
B
Retailer 7
-
HK$377,947 HKD
$48,170 USD
View
B
Retailer 8
-
HK$390,218 HKD
$49,734 USD
View
B+
Retailer 9
-
HK$390,450 HKD
£39,184 GBP
View
B
Retailer 10
-
HK$405,251 HKD
$51,650 USD
View
B
Retailer 11
-
HK$405,251 HKD
$51,650 USD
View
B
Retailer 12
-
HK$406,475 HKD
$51,806 USD
View
B
Retailer 13
-
HK$406,475 HKD
$51,806 USD
View
B
Retailer 14
-
HK$418,746 HKD
$53,370 USD
View
B
Retailer 15
-
HK$422,732 HKD
$53,878 USD
View
B
Retailer 16
-
HK$438,989 HKD
$55,950 USD
View
B
Retailer 17
-
HK$441,359 HKD
$56,252 USD
View
B
Retailer 18
-
HK$457,479 HKD
€55,530 EUR
View
B
Retailer 19
-
HK$505,861 HKD
ZAR 1,041,566 ZAR
View
Most Expensive
B
MOH London
2C4CE80FA · Nov 2
HK$609,422 HKD
£61,159 GBP
View
19 more retailers have this diamond
Prices start from HK$333,655 HKDSave up to HK$275,766 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+
3.50ct Round
HK$333,655 HKD