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Round|Natural|GIA

1.59ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6555735960

Certificate GIA 6555735960

Diamond specifications and retailer prices

From HK$32,437 HKD
As of November 1, 2026
Save HK$41,406 HKD (56%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$78,065 HKD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.59ct natural round diamond

This 1.59ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555735960. Listed at 12 retailers as of October 27, 2026, with a 128% 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

1.59
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6555735960
Dimensions7.41 × 7.46 × 4.66 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather
Top View
7.41 mm7.46 mm1.59 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555735960
Side View
Table 57.0%CrownGirdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

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: Nov 1
Current: HK$73,844 HKD|Low: HK$32,136 HKD|High: HK$77,217 HKD|Avg: HK$47,322 HKD|-4.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6HK$32,437 HKD
Retailer 3HK$36,804 HKD
Retailer 5HK$38,263 HKD
Retailer 8HK$41,233 HKD
Retailer 7HK$44,148 HKD
Retailer 9HK$44,148 HKD
Retailer 10HK$44,816 HKD
Retailer 4HK$49,708 HKD
Retailer 2HK$70,316 HKD
NZ JewellersHK$73,844 HKD

43 data points across 10 retailers

12 retailersHK$32,437 HKD to HK$73,844 HKD

A
Cheapest Retailer
-
HK$32,437 HKD
A
Retailer 2
-
HK$36,804 HKD
€4,468 EUR
View
A
Retailer 3
-
HK$38,263 HKD
$4,877 USD
View
A
Retailer 4
-
HK$41,233 HKD
SGD 7,102 SGD
View
A
Retailer 5
-
HK$44,148 HKD
$5,627 USD
View
A
Retailer 6
-
HK$44,148 HKD
$5,627 USD
View
B+
Retailer 7
-
HK$44,816 HKD
A$8,788 AUD
View
Retailer 8
-
HK$46,172 HKD
$5,885 USD
View
Price last confirmed 35 days ago
B+
Retailer 9
-
HK$49,708 HKD
€6,034 EUR
View
B
Retailer 10
-
HK$70,316 HKD
£7,057 GBP
View
B
Retailer 11
-
HK$73,844 HKD
$9,412 USD
View
Most Expensive
NZ Jewellers
0176224d-a7e5-4611-99f4-afb4be051338 · Sep 26
HK$78,065 HKD
$9,950 USD
View
Price last confirmed 36 days ago
11 more retailers have this diamond
Prices start from HK$32,437 HKDSave up to HK$41,406 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
1.59ct Round
HK$32,437 HKD