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Round|Natural|GIA

1.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2557621269

Certificate GIA 2557621269

Diamond specifications and retailer prices

From HK$35,409 HKD
As of November 4, 2026
Save HK$45,120 HKD (56%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$80,529 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round 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 and certified by GIA 2557621269. Listed at 9 retailers as of November 4, 2026, with prices from HK$35,409 to HK$80,529, a HK$45,120 spread on the same certified stone. NZ Jewellers lists it at HK$80,529. 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

1.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557621269
Dimensions7.30 × 7.36 × 4.59 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Needle
Top View
7.30 mm7.36 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557621269
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.6%

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 4
Current: HK$80,529 HKD|Low: HK$35,409 HKD|High: HK$85,412 HKD|Avg: HK$52,403 HKD|-5.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 7HK$35,409 HKD
Retailer 5HK$40,214 HKD
Retailer 9HK$41,311 HKD
Retailer 8HK$42,197 HKD
Retailer 3HK$48,145 HKD
Retailer 6HK$48,145 HKD
Retailer 2HK$52,275 HKD
Retailer 4HK$70,733 HKD
NZ JewellersHK$80,529 HKD

39 data points across 9 retailers

9 retailersHK$35,409 HKD to HK$80,529 HKD

A
Cheapest Retailer
-
HK$35,409 HKD
A
Retailer 2
-
HK$40,214 HKD
View
Retailer 3
-
HK$41,311 HKD
View
Price last confirmed 11 days ago
A
Retailer 4
-
HK$42,197 HKD
View
B+
Retailer 5
-
HK$48,145 HKD
View
B+
Retailer 6
-
HK$48,145 HKD
View
B+
Retailer 7
-
HK$52,275 HKD
View
B
Retailer 8
-
HK$70,733 HKD
View
Most Expensive
B
NZ Jewellers
706c909f-4d06-495a-abc7-7b084a6df80a · Nov 5
HK$80,529 HKD
$10,275 USD
View
8 more retailers have this diamond
Prices start from HK$35,409 HKDSave up to HK$45,120 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
1.55ct Round
HK$35,409 HKD