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Round|Natural|GIA

1.70ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2488555300

Certificate GIA 2488555300

Diamond specifications and retailer prices

From HK$23,003 HKD
As of November 1, 2026
Save HK$27,909 HKD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$50,912 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 2488555300. Listed at 10 retailers as of November 1, 2026, with prices from HK$23,003 to HK$50,912, a HK$27,909 spread on the same certified stone. NZ Jewellers lists it at HK$50,912. 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
SymmetryVery Good
FluorescenceStrong
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2488555300
Dimensions7.61 × 7.54 × 4.73 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.61 mm7.54 mm1.70 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2488555300
Side View
Table 58.0%Crown 36°Girdle: ThickPavilion 40.6°Culet: NoneDepth 62.5%

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 1
Current: HK$50,912 HKD|Low: HK$23,003 HKD|High: HK$50,912 HKD|Avg: HK$29,685 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 10HK$23,003 HKD
Retailer 9HK$23,497 HKD
Retailer 8HK$25,550 HKD
Retailer 5HK$26,475 HKD
Retailer 7HK$26,475 HKD
Retailer 4HK$27,494 HKD
Retailer 6HK$30,550 HKD
Retailer 3HK$31,906 HKD
Retailer 2HK$35,668 HKD
NZ JewellersHK$50,912 HKD

26 data points across 10 retailers

10 retailersHK$23,003 HKD to HK$50,912 HKD

A
Cheapest Retailer
-
HK$23,003 HKD
B+
Retailer 2
-
HK$23,497 HKD
View
B+
Retailer 3
-
HK$25,550 HKD
View
Retailer 4
-
HK$26,475 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$26,475 HKD
View
B+
Retailer 6
-
HK$27,494 HKD
View
B
Retailer 7
-
HK$30,550 HKD
View
B
Retailer 8
-
HK$31,906 HKD
View
B
Retailer 9
-
HK$35,668 HKD
View
Most Expensive
C
NZ Jewellers
615cdd80-53c7-4ec5-aaeb-bed7f5a2e6cb · Nov 5
HK$50,912 HKD
$6,496 USD
View
9 more retailers have this diamond
Prices start from HK$23,003 HKDSave up to HK$27,909 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$23,003 HKD