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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6555742497

Certificate GIA 6555742497

Diamond specifications and retailer prices

From HK$17,981 HKD
As of November 6, 2026
Save HK$29,686 HKD (62%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: HK$47,667 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555742497. Listed at 26 retailers as of November 5, 2026, with prices from HK$17,981 to HK$47,667, a HK$29,686 spread on the same certified stone. NZ Jewellers lists it at HK$47,667. 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

1.00
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555742497
Dimensions6.44 × 6.46 × 3.91 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.44 mm6.46 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555742497
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.6%

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 6
Current: HK$21,213 HKD|Low: HK$18,083 HKD|High: HK$38,583 HKD|Avg: HK$24,407 HKD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5HK$18,083 HKD
Retailer 1HK$21,213 HKD
Retailer 6HK$21,449 HKD
Retailer 7HK$22,406 HKD
Retailer 8HK$22,422 HKD
Retailer 2HK$23,991 HKD
Retailer 3HK$24,877 HKD
Retailer 4HK$38,026 HKD

42 data points across 8 retailers

26 retailersHK$17,981 HKD to HK$47,667 HKD

A
Cheapest Retailer
-
HK$17,981 HKD
A
Retailer 2
-
HK$18,083 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$18,122 HKD
View
A
Retailer 4
-
HK$18,499 HKD
View
B+
Retailer 5
-
HK$19,166 HKD
View
B+
Retailer 6
-
HK$19,487 HKD
View
B+
Retailer 7
-
HK$20,656 HKD
View
Retailer 8
-
HK$20,656 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$20,955 HKD
View
B+
Retailer 10
-
HK$21,213 HKD
View
B+
Retailer 11
-
HK$21,449 HKD
View
B+
Retailer 12
-
HK$22,406 HKD
View
B+
Retailer 13
-
HK$22,406 HKD
View
B+
Retailer 14
-
HK$22,422 HKD
View
B+
Retailer 15
-
HK$22,578 HKD
View
B+
Retailer 16
-
HK$23,614 HKD
View
B+
Retailer 17
-
HK$23,614 HKD
View
B+
Retailer 18
-
HK$23,826 HKD
View
B+
Retailer 19
-
HK$23,834 HKD
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B+
Retailer 20
-
HK$23,991 HKD
View
B
Retailer 21
-
HK$24,399 HKD
View
B+
Retailer 22
-
HK$24,877 HKD
View
B
Retailer 23
-
HK$27,631 HKD
View
B
Retailer 24
-
HK$32,856 HKD
View
B
Retailer 25
-
HK$38,026 HKD
View
Most Expensive
B
NZ Jewellers
3e6af43f-47f0-4dd2-a37d-27fc8b5b5cca · Nov 5
HK$47,667 HKD
$6,076 USD
View
25 more retailers have this diamond
Prices start from HK$17,981 HKDSave up to HK$29,686 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
1.00ct Round
HK$17,981 HKD