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Round|Natural|GIA

1.64ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 5453378660

Certificate GIA 5453378660

Diamond specifications and retailer prices

From HK$93,929 HKD
$11,972 USD
As of October 31, 2026
Save HK$8,301 HKD (8%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$102,229 HKD at Jared · As of October 30, 2026
View at Jared

About this 1.64ct natural round diamond

This 1.64ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5453378660. Listed at 5 retailers as of October 30, 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

1.64
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5453378660
Dimensions7.47 × 7.53 × 4.70 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.47 mm7.53 mm1.64 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5453378660
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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 31
Current: HK$102,229 HKD|Low: HK$93,929 HKD|High: HK$102,229 HKD|Avg: HK$98,781 HKD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3HK$93,929 HKD
Retailer 4HK$98,934 HKD
Retailer 5HK$98,934 HKD
Retailer 2HK$100,413 HKD
JaredHK$102,229 HKD

21 data points across 5 retailers

5 retailersHK$93,929 HKD to HK$102,229 HKD

B+
Cheapest Retailer
-
HK$93,929 HKD
$11,972 USD
B+
Retailer 2
-
HK$98,934 HKD
$12,610 USD
View
B+
Retailer 3
-
HK$98,934 HKD
$12,610 USD
View
B+
Retailer 4
-
HK$100,413 HKD
€12,189 EUR
View
Most Expensive
B
Jared
146703431 · Oct 30
HK$102,229 HKD
$13,030 USD
View
4 more retailers have this diamond
Prices start from HK$93,929 HKDSave up to HK$8,301 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+
1.64ct Round
HK$93,929 HKD