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Round|Natural|GIA

1.63ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 5241039458

Certificate GIA 5241039458

Diamond specifications and retailer prices

From HK$30,596 HKD
As of November 5, 2026
Save HK$8,598 HKD (22%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$55,952 HKD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.63ct natural round diamond

This 1.63ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5241039458. Listed at 9 retailers as of November 5, 2026, with a 28% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.63
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5241039458
Dimensions7.42 × 7.47 × 4.67 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud
Top View
7.42 mm7.47 mm1.63 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241039458
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.7%

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$34,966 HKD|Low: HK$30,596 HKD|High: HK$39,469 HKD|Avg: HK$35,493 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4HK$30,596 HKD
Retailer 1HK$34,966 HKD
Retailer 2HK$36,057 HKD
Retailer 3HK$39,195 HKD

34 data points across 4 retailers

9 retailersHK$30,596 HKD to HK$39,195 HKD

B+
Cheapest Retailer
-
HK$30,596 HKD
Retailer 2
-
HK$32,110 HKD
View
Price last confirmed 29 days ago
Retailer 3
-
HK$32,118 HKD
View
Price last confirmed 29 days ago
Retailer 4
-
HK$32,118 HKD
View
Price last confirmed 38 days ago
B+
Retailer 5
-
HK$34,966 HKD
View
B
Retailer 6
-
HK$36,057 HKD
View
Retailer 7
-
HK$37,053 HKD
View
Price last confirmed 38 days ago
B
Retailer 8
-
HK$39,195 HKD
View
Most Expensive
NZ Jewellers
77c4b5d9-f5d2-46ad-8e6d-880d14891f14 · Sep 28
HK$55,952 HKD
$7,132 USD
View
Price last confirmed 39 days ago
8 more retailers have this diamond
Prices start from HK$30,596 HKDSave up to HK$8,598 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+
1.63ct Round
HK$30,596 HKD