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Round|Natural|GIA

1.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6531188321

Certificate GIA 6531188321

Diamond specifications and retailer prices

From HK$56,798 HKD
As of November 6, 2026
Save HK$71,336 HKD (56%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: HK$128,134 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 6531188321. Listed at 31 retailers as of November 5, 2026, with prices from HK$56,798 to HK$128,134, a HK$71,336 spread on the same certified stone. NZ Jewellers lists it at HK$128,134. 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6531188321
Dimensions7.36 × 7.34 × 4.56 mm
L/W Ratio1.00
Top View
7.36 mm7.34 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531188321
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$81,313 HKD|Low: HK$56,798 HKD|High: HK$108,054 HKD|Avg: HK$77,295 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 4HK$56,798 HKD
Retailer 12HK$58,585 HKD
Retailer 11HK$59,980 HKD
Retailer 3HK$61,469 HKD
Retailer 7HK$68,562 HKD
Retailer 9HK$70,356 HKD
Retailer 2HK$70,780 HKD
Retailer 8HK$79,072 HKD
Retailer 1HK$81,313 HKD
Retailer 5HK$93,343 HKD
Retailer 10HK$93,461 HKD
Retailer 6HK$106,189 HKD

44 data points across 12 retailers

31 retailersHK$56,798 HKD to HK$128,134 HKD

B+
Cheapest Retailer
-
HK$56,798 HKD
B+
Retailer 2
-
HK$58,091 HKD
View
B+
Retailer 3
-
HK$58,585 HKD
View
B+
Retailer 4
-
HK$59,846 HKD
View
B+
Retailer 5
-
HK$59,980 HKD
View
B+
Retailer 6
-
HK$61,469 HKD
View
Final sale: no returns
B+
Retailer 7
-
HK$61,704 HKD
View
B+
Retailer 8
-
HK$62,958 HKD
View
B+
Retailer 9
-
HK$63,757 HKD
View
Retailer 10
-
HK$64,063 HKD
View
Price last confirmed 9 days ago
B
Retailer 11
-
HK$68,279 HKD
View
B
Retailer 12
-
HK$68,562 HKD
View
B
Retailer 13
-
HK$69,408 HKD
View
B+
Retailer 14
-
HK$70,356 HKD
View
B
Retailer 15
-
HK$70,474 HKD
View
Retailer 16
-
HK$70,780 HKD
View
Price last confirmed 15 days ago
B
Retailer 17
-
HK$71,101 HKD
View
B
Retailer 18
-
HK$73,640 HKD
View
B
Retailer 19
-
HK$75,944 HKD
View
B
Retailer 20
-
HK$75,944 HKD
View
B
Retailer 21
-
HK$77,653 HKD
View
B
Retailer 22
-
HK$78,452 HKD
View
B
Retailer 23
-
HK$79,072 HKD
View
B
Retailer 24
-
HK$80,083 HKD
View
B
Retailer 25
-
HK$81,313 HKD
View
B
Retailer 26
-
HK$81,775 HKD
View
Retailer 27
-
HK$84,338 HKD
View
Price last confirmed 15 days ago
B
Retailer 28
-
HK$93,343 HKD
View
B
Retailer 29
-
HK$93,461 HKD
View
B
Retailer 30
-
HK$106,189 HKD
View
Most Expensive
B
NZ Jewellers
bad8d0d6-c1c9-4c6b-977e-f24c51c588e1 · Nov 5
HK$128,134 HKD
$16,349 USD
View
30 more retailers have this diamond
Prices start from HK$56,798 HKDSave up to HK$71,336 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$56,798 HKD