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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 $2,146 CAD
HK$12,000 HKD
As of October 30, 2026
Save $4,606 CAD (68%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $6,751 CAD at NZ Jewellers · As of October 30, 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 October 30, 2026, with prices from $2,146 to $6,751, a $4,606 spread on the same certified stone. NZ Jewellers lists it at $6,751. 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
Color
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: Oct 30
Current: $6,751 CAD|Low: $2,146 CAD|High: $6,751 CAD|Avg: $3,322 CAD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
October 30, 2026
Retailer 5$2,146 CAD
Retailer 19$2,191 CAD
Retailer 6$2,487 CAD
Retailer 14$2,500 CAD
Retailer 10$2,555 CAD
Retailer 9$2,592 CAD
Retailer 4$2,633 CAD
Retailer 7$2,766 CAD
Retailer 3$2,769 CAD
Retailer 23$2,769 CAD
Retailer 2$2,858 CAD
Retailer 25$2,896 CAD
Retailer 20$2,961 CAD
Retailer 11$3,005 CAD
Retailer 21$3,018 CAD
Retailer 8$3,193 CAD
Retailer 12$3,193 CAD
Retailer 15$3,545 CAD
Retailer 18$3,590 CAD
Retailer 22$3,724 CAD
Retailer 13$4,044 CAD
Retailer 16$4,065 CAD
Retailer 17$4,180 CAD
Retailer 24$4,875 CAD
NZ Jewellers$6,751 CAD

27 data points across 25 retailers

25 retailers$2,146 CAD to $6,751 CAD

A
Cheapest Retailer
-
$2,146 CAD
HK$12,000 HKD
A
Retailer 2
-
$2,191 CAD
₹149,355 INR
View
B+
Retailer 3
-
$2,487 CAD
A$2,739 AUD
View
B+
Retailer 4
-
$2,500 CAD
$1,790 USD
View
B+
Retailer 5
-
$2,555 CAD
$1,829 USD
View
Final sale: no returns
B+
Retailer 6
-
$2,592 CAD
SGD 2,507 SGD
View
B+
Retailer 7
-
$2,633 CAD
$1,885 USD
View
B+
Retailer 8
-
$2,766 CAD
$1,980 USD
View
B+
Retailer 9
-
$2,769 CAD
$1,982 USD
View
B+
Retailer 10
-
$2,769 CAD
$1,982 USD
View
B+
Retailer 11
-
$2,858 CAD
$2,046 USD
View
B+
Retailer 12
-
$2,896 CAD
$2,073 USD
View
B+
Retailer 13
-
$2,961 CAD
$2,120 USD
View
B+
Retailer 14
-
$3,005 CAD
SGD 2,907 SGD
View
B+
Retailer 15
-
$3,018 CAD
£1,701 GBP
View
B+
Retailer 16
-
$3,193 CAD
£1,800 GBP
View
B+
Retailer 17
-
$3,193 CAD
$2,286 USD
View
B+
Retailer 18
-
$3,545 CAD
ZAR 41,003 ZAR
View
Retailer 19
-
$3,590 CAD
A$3,954 AUD
View
Price last confirmed 25 days ago
B+
Retailer 20
-
$3,724 CAD
€2,539 EUR
View
B
Retailer 21
-
$4,044 CAD
$2,895 USD
View
B
Retailer 22
-
$4,065 CAD
$2,910 USD
View
B
Retailer 23
-
$4,180 CAD
$2,992 USD
View
B
Retailer 24
-
$4,875 CAD
£2,748 GBP
View
Most Expensive
C
NZ Jewellers
a8977eb8-a3da-4fd8-8ac7-0b132184bc8c · Oct 30
$6,751 CAD
$4,833 USD
View
24 more retailers have this diamond
Prices start from $2,146 CADSave up to $4,606 CAD

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
$2,146 CAD