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1.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1509366860

Certificate GIA 1509366860

Diamond specifications and retailer prices

From HK$62,574 HKD
As of November 6, 2026
Save HK$21,908 HKD (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$84,482 HKD at Yorxs · As of November 2, 2026
View at Yorxs

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 1509366860. Listed at 7 retailers as of November 2, 2026, with prices from HK$62,574 to HK$84,482, a HK$21,908 spread on the same certified stone. Yorxs lists it at HK$84,482. 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 angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1509366860
Dimensions7.32 × 7.37 × 4.61 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.32 mm7.37 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1509366860
Side View
Table 59.0%Crown 35°Girdle: Slightly ThickPavilion 41.4°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 6
Current: HK$81,368 HKD|Low: HK$62,574 HKD|High: HK$84,852 HKD|Avg: HK$76,667 HKD|+0.8%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 7, 2026
Retailer 3HK$62,574 HKD
Retailer 2HK$78,570 HKD
Retailer 1HK$81,368 HKD
YorxsHK$84,482 HKD

38 data points across 4 retailers

7 retailersHK$62,574 HKD to HK$84,482 HKD

B+
Cheapest Retailer
-
HK$62,574 HKD
B+
Retailer 2
-
HK$64,180 HKD
View
B+
Retailer 3
-
HK$68,185 HKD
View
B
Retailer 4
-
HK$78,570 HKD
View
Retailer 5
-
HK$78,570 HKD
View
Price last confirmed 29 days ago
B
Retailer 6
-
HK$81,368 HKD
View
Most Expensive
B
Yorxs
TIM3124 · Nov 2
HK$84,482 HKD
€10,266 EUR
View
6 more retailers have this diamond
Prices start from HK$62,574 HKDSave up to HK$21,908 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$62,574 HKD