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Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2556520738

Certificate GIA 2556520738

Diamond specifications and retailer prices

From HK$43,905 HKD
$5,596 USD
As of October 31, 2026
Save HK$41,542 HKD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$98,550 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 2556520738. Listed at 18 retailers as of October 26, 2026, with a 95% 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
FluorescenceStrong
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556520738
Dimensions7.71 × 7.75 × 4.69 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Pinpoint, Natural
Top View
7.71 mm7.75 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556520738
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.7%

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: Oct 31
Current: HK$54,200 HKD|Low: HK$38,836 HKD|High: HK$85,447 HKD|Avg: HK$57,753 HKD|-0.7%
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
November 2, 2026
Retailer 9HK$43,905 HKD
Retailer 12HK$44,446 HKD
Retailer 13HK$45,725 HKD
Retailer 2HK$45,775 HKD
Retailer 14HK$46,347 HKD
Retailer 10HK$47,456 HKD
Retailer 11HK$48,392 HKD
Retailer 5HK$49,271 HKD
Retailer 1HK$54,200 HKD
Retailer 3HK$54,358 HKD
Retailer 4HK$54,379 HKD
Retailer 8HK$61,694 HKD
Retailer 7HK$80,659 HKD
Retailer 6HK$85,447 HKD

38 data points across 14 retailers

18 retailersHK$43,905 HKD to HK$85,447 HKD

A
Cheapest Retailer
-
HK$43,905 HKD
$5,596 USD
A
Retailer 2
-
HK$44,446 HKD
$5,665 USD
View
A
Retailer 3
-
HK$45,725 HKD
$5,828 USD
View
A
Retailer 4
-
HK$45,775 HKD
$5,834 USD
View
A
Retailer 5
-
HK$46,347 HKD
$5,907 USD
View
A
Retailer 6
-
HK$47,456 HKD
A$9,306 AUD
View
B+
Retailer 7
-
HK$48,392 HKD
$6,168 USD
View
Final sale: no returns
Retailer 8
-
HK$53,382 HKD
$6,804 USD
View
Price last confirmed 31 days ago
Retailer 9
-
HK$54,198 HKD
$6,908 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
HK$54,200 HKD
£5,440 GBP
View
Retailer 11
-
HK$54,214 HKD
$6,910 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
HK$54,358 HKD
$6,928 USD
View
B+
Retailer 13
-
HK$54,379 HKD
$6,931 USD
View
Retailer 14
-
HK$61,597 HKD
$7,851 USD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
HK$61,694 HKD
€7,489 EUR
View
B
Retailer 16
-
HK$80,659 HKD
£8,095 GBP
View
B
Retailer 17
-
HK$85,447 HKD
$10,891 USD
View
Most Expensive
NZ Jewellers
0e9bb4a0-df40-447b-bf38-7b3545a180d1 · Sep 28
HK$98,550 HKD
$12,561 USD
View
Price last confirmed 34 days ago
17 more retailers have this diamond
Prices start from HK$43,905 HKDSave up to HK$41,542 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$43,905 HKD