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Round|Natural|GIA

1.00ct H SI1 Round Natural Diamond

GD • H/SI1 • GIA 2556450106

Certificate GIA 2556450106

Diamond specifications and retailer prices

From HK$12,144 HKD
As of November 6, 2026
Save HK$25,771 HKD (68%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$37,916 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 SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 2556450106. Listed at 25 retailers as of November 5, 2026, with prices from HK$12,144 to HK$37,916, a HK$25,771 spread on the same certified stone. NZ Jewellers lists it at HK$37,916. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryGood
FluorescenceFaint
Crown angle40°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556450106
Dimensions6.02 × 6.11 × 4.09 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Cloud, Pinpoint, Indented Natural, Natural
Top View
6.02 mm6.11 mm1.00 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 2556450106
Side View
Table 59.0%Crown 40°Girdle: MED-VTKPavilion 41°Culet: NoneDepth 67.4%

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$37,916 HKD|Low: HK$12,050 HKD|High: HK$37,916 HKD|Avg: HK$18,429 HKD
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
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 6, 2026
Retailer 24HK$12,144 HKD
Retailer 2HK$12,152 HKD
Retailer 10HK$13,964 HKD
Retailer 15HK$14,043 HKD
Retailer 12HK$14,349 HKD
Retailer 21HK$14,631 HKD
Retailer 11HK$15,533 HKD
Retailer 7HK$15,549 HKD
Retailer 9HK$15,549 HKD
Retailer 3HK$15,847 HKD
Retailer 4HK$16,051 HKD
Retailer 8HK$16,263 HKD
Retailer 6HK$16,624 HKD
Retailer 18HK$16,687 HKD
Retailer 13HK$16,875 HKD
Retailer 14HK$17,934 HKD
Retailer 19HK$17,981 HKD
Retailer 20HK$18,970 HKD
Retailer 22HK$20,672 HKD
Retailer 5HK$22,712 HKD
Retailer 16HK$22,830 HKD
Retailer 17HK$23,473 HKD
Retailer 23HK$27,239 HKD
NZ JewellersHK$37,916 HKD

27 data points across 24 retailers

25 retailersHK$12,144 HKD to HK$37,916 HKD

B+
Cheapest Retailer
-
HK$12,144 HKD
A
Retailer 2
-
HK$12,152 HKD
View
B+
Retailer 3
-
HK$13,964 HKD
View
B+
Retailer 4
-
HK$14,043 HKD
View
B+
Retailer 5
-
HK$14,349 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$14,631 HKD
View
B+
Retailer 7
-
HK$15,533 HKD
View
B+
Retailer 8
-
HK$15,549 HKD
View
Retailer 9
-
HK$15,549 HKD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
HK$15,847 HKD
View
B+
Retailer 11
-
HK$16,051 HKD
View
B+
Retailer 12
-
HK$16,263 HKD
View
B+
Retailer 13
-
HK$16,624 HKD
View
B+
Retailer 14
-
HK$16,687 HKD
View
B+
Retailer 15
-
HK$16,875 HKD
View
B+
Retailer 16
-
HK$17,934 HKD
View
B+
Retailer 17
-
HK$17,981 HKD
View
B+
Retailer 18
-
HK$18,970 HKD
View
Retailer 19
-
HK$20,162 HKD
View
Price last confirmed 32 days ago
B+
Retailer 20
-
HK$20,672 HKD
View
B
Retailer 21
-
HK$22,712 HKD
View
B
Retailer 22
-
HK$22,830 HKD
View
B
Retailer 23
-
HK$23,473 HKD
View
B
Retailer 24
-
HK$27,239 HKD
View
Most Expensive
C
NZ Jewellers
a8977eb8-a3da-4fd8-8ac7-0b132184bc8c · Nov 5
HK$37,916 HKD
$4,833 USD
View
24 more retailers have this diamond
Prices start from HK$12,144 HKDSave up to HK$25,771 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$12,144 HKD