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Radiant|Natural|GIA

1.70ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6542405819

Certificate GIA 6542405819

Diamond specifications and retailer prices

From HK$60,548 HKD
$7,717 USD
As of November 1, 2026
Save HK$68,787 HKD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$129,335 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542405819. Listed at 15 retailers as of October 30, 2026, with prices from HK$60,548 to HK$129,335, a HK$68,787 spread on the same certified stone. NZ Jewellers lists it at HK$129,335. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542405819
Dimensions7.80 × 5.99 × 4.17 mm
L/W Ratio1.30
Culet sizeNone
Top View
7.80 mm5.99 mm1.70 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542405819
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$72,861 HKD|Low: HK$60,548 HKD|High: HK$109,072 HKD|Avg: HK$76,067 HKD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9HK$60,548 HKD
Retailer 10HK$64,338 HKD
Retailer 3HK$64,668 HKD
Retailer 11HK$65,209 HKD
Retailer 2HK$71,133 HKD
Retailer 8HK$71,461 HKD
Retailer 5HK$72,232 HKD
Retailer 1HK$72,861 HKD
Retailer 4HK$80,291 HKD
Retailer 7HK$95,001 HKD
Retailer 6HK$107,767 HKD

38 data points across 11 retailers

15 retailersHK$60,548 HKD to HK$129,335 HKD

B+
Cheapest Retailer
-
HK$60,548 HKD
$7,717 USD
B+
Retailer 2
-
HK$64,338 HKD
$8,200 USD
View
B+
Retailer 3
-
HK$64,668 HKD
$8,242 USD
View
B+
Retailer 4
-
HK$65,209 HKD
$8,311 USD
View
B+
Retailer 5
-
HK$70,058 HKD
$8,929 USD
View
B+
Retailer 6
-
HK$71,133 HKD
$9,066 USD
View
Retailer 7
-
HK$71,461 HKD
A$14,012 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
HK$72,232 HKD
£7,249 GBP
View
B+
Retailer 9
-
HK$72,861 HKD
£7,312 GBP
View
B
Retailer 10
-
HK$80,291 HKD
€9,746 EUR
View
B
Retailer 11
-
HK$80,831 HKD
$10,302 USD
View
Retailer 12
-
HK$85,130 HKD
$10,850 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
HK$95,001 HKD
ZAR 195,607 ZAR
View
B
Retailer 14
-
HK$107,767 HKD
£10,815 GBP
View
Most Expensive
B
NZ Jewellers
1d54afd2-dea2-45ca-b8fb-7682312c287a · Oct 30
HK$129,335 HKD
$16,484 USD
View
14 more retailers have this diamond
Prices start from HK$60,548 HKDSave up to HK$68,787 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.

B+
1.70ct Radiant
HK$60,548 HKD