Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1559478791

Certificate GIA 1559478791

Diamond specifications and retailer prices

From HK$39,221 HKD
$4,999 USD
As of November 2, 2026
Save HK$43,174 HKD (52%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$95,043 HKD at NZ Jewellers · As of September 28, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559478791. Listed at 24 retailers as of October 26, 2026, with a 110% 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

1.70
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1559478791
Dimensions7.68 × 4.72 × 4.72 mm
L/W Ratio1.63
Culet sizeNone
Top View
7.68 mm4.72 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559478791
Side View
Table 59.0%Crown 33°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 61.3%

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 2
Current: HK$54,130 HKD|Low: HK$37,452 HKD|High: HK$82,395 HKD|Avg: HK$54,215 HKD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 4HK$43,638 HKD
Retailer 5HK$44,893 HKD
Retailer 13HK$44,946 HKD
Retailer 6HK$45,505 HKD
Retailer 15HK$47,514 HKD
Retailer 17HK$47,521 HKD
Retailer 2HK$50,680 HKD
Retailer 8HK$52,166 HKD
Retailer 12HK$52,433 HKD
Retailer 16HK$53,448 HKD
Retailer 1HK$54,130 HKD
Retailer 3HK$56,175 HKD
Retailer 7HK$56,175 HKD
Retailer 9HK$58,058 HKD
Retailer 10HK$60,615 HKD
Retailer 11HK$79,194 HKD
Retailer 14HK$82,395 HKD

35 data points across 17 retailers

24 retailersHK$39,221 HKD to HK$82,395 HKD

A
Cheapest Retailer
-
HK$39,221 HKD
$4,999 USD
A
Retailer 2
-
HK$43,638 HKD
$5,562 USD
View
A
Retailer 3
-
HK$44,893 HKD
$5,722 USD
View
A
Retailer 4
-
HK$44,946 HKD
$5,729 USD
View
A
Retailer 5
-
HK$45,505 HKD
$5,800 USD
View
B+
Retailer 6
-
HK$47,514 HKD
$6,056 USD
View
Final sale: no returns
B+
Retailer 7
-
HK$50,680 HKD
$6,460 USD
View
Retailer 8
-
HK$51,483 HKD
$6,562 USD
View
Price last confirmed 51 days ago
Retailer 9
-
HK$51,483 HKD
$6,562 USD
View
Price last confirmed 34 days ago
Retailer 10
-
HK$52,166 HKD
$6,649 USD
View
Price last confirmed 9 days ago
Retailer 11
-
HK$52,276 HKD
$6,663 USD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
HK$52,433 HKD
$6,683 USD
View
B+
Retailer 13
-
HK$53,448 HKD
$6,812 USD
View
B+
Retailer 14
-
HK$54,130 HKD
£5,433 GBP
View
B+
Retailer 15
-
HK$56,175 HKD
$7,160 USD
View
B+
Retailer 16
-
HK$56,175 HKD
$7,160 USD
View
B+
Retailer 17
-
HK$58,058 HKD
$7,400 USD
View
Retailer 18
-
HK$59,400 HKD
$7,571 USD
View
Price last confirmed 33 days ago
Retailer 19
-
HK$59,400 HKD
$7,571 USD
View
Price last confirmed 52 days ago
B+
Retailer 20
-
HK$60,615 HKD
€7,358 EUR
View
B
Retailer 21
-
HK$79,194 HKD
£7,948 GBP
View
B
Retailer 22
-
HK$82,395 HKD
$10,502 USD
View
Retailer 23
-
HK$95,043 HKD
$12,114 USD
View
Price last confirmed 52 days ago
Most Expensive
NZ Jewellers
24bb874d-fc3e-4e61-9f42-8d6bc48b80c1 · Sep 28
HK$95,043 HKD
$12,114 USD
View
Price last confirmed 35 days ago
23 more retailers have this diamond
Prices start from HK$39,221 HKDSave up to HK$43,174 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$39,221 HKD