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Round|Natural|GIA

1.70ct E IF Round Natural Diamond

EX • E/IF • GIA 5191570909

Certificate GIA 5191570909

Diamond specifications and retailer prices

From HK$178,105 HKD
$22,699 USD
As of October 28, 2026
Save HK$169,829 HKD (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$347,934 HKD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 5191570909. Listed at 17 retailers as of October 28, 2026, with prices from HK$178,105 to HK$347,934, a HK$169,829 spread on the same certified stone. Diamond Quarter lists it at HK$347,934. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5191570909
Dimensions7.57 × 7.62 × 4.73 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.57 mm7.62 mm1.70 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5191570909
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

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: Oct 28
Current: HK$178,141 HKD|Low: HK$177,608 HKD|High: HK$281,051 HKD|Avg: HK$209,996 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
October 29, 2026
Retailer 12HK$178,105 HKD
Retailer 1HK$178,141 HKD
Retailer 14HK$182,977 HKD
Retailer 11HK$187,466 HKD
Retailer 2HK$190,471 HKD
Retailer 3HK$195,619 HKD
Retailer 6HK$199,967 HKD
Retailer 10HK$205,403 HKD
Retailer 4HK$211,923 HKD
Retailer 8HK$213,869 HKD
Retailer 13HK$220,076 HKD
Retailer 5HK$251,069 HKD
Retailer 9HK$258,989 HKD
Retailer 7HK$278,261 HKD

44 data points across 14 retailers

17 retailersHK$178,105 HKD to HK$347,934 HKD

A
Cheapest Retailer
-
HK$178,105 HKD
$22,699 USD
A
Retailer 2
-
HK$178,141 HKD
£17,877 GBP
View
A
Retailer 3
-
HK$182,977 HKD
A$35,877 AUD
View
Price last confirmed 25 days ago
A
Retailer 4
-
HK$187,466 HKD
$23,892 USD
View
Final sale: no returns
A
Retailer 5
-
HK$190,471 HKD
$24,275 USD
View
A
Retailer 6
-
HK$195,619 HKD
$24,931 USD
View
A
Retailer 7
-
HK$199,967 HKD
$25,485 USD
View
B+
Retailer 8
-
HK$205,403 HKD
$26,178 USD
View
B+
Retailer 9
-
HK$211,923 HKD
$27,009 USD
View
B+
Retailer 10
-
HK$213,869 HKD
€25,959 EUR
View
B+
Retailer 11
-
HK$220,076 HKD
$28,048 USD
View
B+
Retailer 12
-
HK$224,823 HKD
$28,653 USD
View
Price last confirmed 60 days ago
B+
Retailer 13
-
HK$251,069 HKD
$31,998 USD
View
B+
Retailer 14
-
HK$256,491 HKD
$32,689 USD
View
Price last confirmed 61 days ago
B+
Retailer 15
-
HK$258,989 HKD
ZAR 533,237 ZAR
View
B+
Retailer 16
-
HK$278,261 HKD
£27,924 GBP
View
Most Expensive
B
Diamond Quarter
1.7IFE51092670N · Oct 29
HK$347,934 HKD
£34,916 GBP
View
16 more retailers have this diamond
Prices start from HK$178,105 HKDSave up to HK$169,829 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$178,105 HKD