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1.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2554628290

Certificate GIA 2554628290

Diamond specifications and retailer prices

From HK$50,998 HKD
As of November 7, 2026
Save HK$46,719 HKD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$97,717 HKD at NZ Jewellers · As of November 7, 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 2554628290. Listed at 10 retailers as of November 7, 2026, with prices from HK$50,998 to HK$97,717, a HK$46,719 spread on the same certified stone. NZ Jewellers lists it at HK$97,717. 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
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2554628290
Dimensions7.34 × 7.39 × 4.62 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
7.34 mm7.39 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554628290
Side View
Table 58.0%Crown 34.5°Girdle: STK-STKPavilion 41.6°Culet: NoneDepth 62.7%

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 7
Current: HK$97,717 HKD|Low: HK$46,750 HKD|High: HK$98,203 HKD|Avg: HK$62,296 HKD|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 3HK$46,750 HKD
Retailer 8HK$50,998 HKD
Retailer 13HK$51,241 HKD
Retailer 7HK$57,056 HKD
Retailer 12HK$58,718 HKD
Retailer 11HK$58,867 HKD
Retailer 9HK$59,321 HKD
Retailer 5HK$63,938 HKD
Retailer 2HK$64,807 HKD
Retailer 10HK$66,085 HKD
Retailer 4HK$74,455 HKD
Retailer 6HK$80,984 HKD
NZ JewellersHK$97,717 HKD

15 data points across 13 retailers

10 retailersHK$50,998 HKD to HK$97,717 HKD

Retailer 1
-
HK$46,750 HKD
Price last confirmed 20 days ago
B+
Retailer 2
-
HK$50,998 HKD
View
B+
Retailer 3
-
HK$57,056 HKD
View
B+
Retailer 4
-
HK$58,718 HKD
View
B+
Retailer 5
-
HK$58,867 HKD
View
B+
Retailer 6
-
HK$59,321 HKD
View
B+
Retailer 7
-
HK$64,807 HKD
View
B+
Retailer 8
-
HK$66,085 HKD
View
B
Retailer 9
-
HK$80,984 HKD
View
Most Expensive
B
NZ Jewellers
f210d4ab-2482-435a-aca7-e31a8614fcd8 · Nov 7
HK$97,717 HKD
$12,468 USD
View
9 more retailers have this diamond
Prices start from HK$50,998 HKDSave up to HK$46,719 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+
1.55ct Round
HK$50,998 HKD