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Round|Natural|GIA

1.70ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6445964287

Certificate GIA 6445964287

Diamond specifications and retailer prices

From HK$21,866 HKD
As of November 6, 2026
Save HK$29,375 HKD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$51,241 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct 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 6445964287. Listed at 11 retailers as of November 5, 2026, with prices from HK$21,866 to HK$51,241, a HK$29,375 spread on the same certified stone. NZ Jewellers lists it at HK$51,241. 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

1.70
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6445964287
Dimensions7.69 × 7.76 × 4.62 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.69 mm7.76 mm1.70 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6445964287
Side View
Table 61.0%Crown 32.5°Girdle: MED-NULPavilion 41°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$51,241 HKD|Low: HK$21,663 HKD|High: HK$51,970 HKD|Avg: HK$31,665 HKD|-1.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 6HK$21,866 HKD
Retailer 3HK$26,177 HKD
Retailer 4HK$26,827 HKD
Retailer 8HK$28,175 HKD
Retailer 7HK$29,414 HKD
Retailer 10HK$29,414 HKD
Retailer 12HK$30,542 HKD
Retailer 9HK$30,558 HKD
Retailer 11HK$33,936 HKD
Retailer 2HK$34,163 HKD
Retailer 5HK$35,903 HKD
NZ JewellersHK$51,241 HKD

34 data points across 12 retailers

11 retailersHK$21,866 HKD to HK$51,241 HKD

A
Cheapest Retailer
-
HK$21,866 HKD
B+
Retailer 2
-
HK$26,177 HKD
View
B+
Retailer 3
-
HK$28,175 HKD
View
B+
Retailer 4
-
HK$29,414 HKD
View
Retailer 5
-
HK$29,414 HKD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$30,542 HKD
View
B+
Retailer 7
-
HK$30,558 HKD
View
B
Retailer 8
-
HK$33,936 HKD
View
B
Retailer 9
-
HK$34,163 HKD
View
B
Retailer 10
-
HK$35,903 HKD
View
Most Expensive
B
NZ Jewellers
91f6c9c7-1955-4b6e-bdc0-fe6fb80ad956 · Nov 5
HK$51,241 HKD
$6,538 USD
View
10 more retailers have this diamond
Prices start from HK$21,866 HKDSave up to HK$29,375 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.

A
1.70ct Round
HK$21,866 HKD