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Round|Natural|GIA

1.00ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6552531225

Certificate GIA 6552531225

Diamond specifications and retailer prices

From $3,094 NZD
As of November 6, 2026
Save $4,133 NZD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,745 NZD at NZ Jewellers · As of October 20, 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 top-tier cut grade and certified by GIA 6552531225. Listed at 19 retailers as of November 4, 2026, with a 134% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552531225
Dimensions6.32 × 6.37 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.32 mm6.37 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552531225
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.2%

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: $8,745 NZD|Low: $3,094 NZD|High: $8,745 NZD|Avg: $4,666 NZD
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
November 6, 2026
Retailer 4$3,094 NZD
Retailer 2$3,112 NZD
Retailer 7$3,444 NZD
Retailer 15$3,546 NZD
Retailer 16$3,772 NZD
Retailer 14$3,795 NZD
Retailer 6$3,819 NZD
Retailer 5$4,084 NZD
Retailer 9$4,183 NZD
Retailer 10$4,317 NZD
Retailer 11$4,513 NZD
Retailer 13$4,753 NZD
Retailer 8$4,827 NZD
Retailer 12$4,865 NZD
Retailer 3$6,003 NZD
Retailer 17$7,226 NZD
NZ Jewellers$8,745 NZD

23 data points across 17 retailers

19 retailers$3,094 NZD to $7,226 NZD

A
Cheapest Retailer
-
$3,094 NZD
A
Retailer 2
-
$3,112 NZD
View
Retailer 3
-
$3,444 NZD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$3,546 NZD
View
A
Retailer 5
-
$3,772 NZD
View
A
Retailer 6
-
$3,795 NZD
View
A
Retailer 7
-
$3,819 NZD
View
Final sale: no returns
A
Retailer 8
-
$4,084 NZD
View
Retailer 9
-
$4,183 NZD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
$4,254 NZD
View
B+
Retailer 11
-
$4,317 NZD
View
Retailer 12
-
$4,425 NZD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$4,513 NZD
View
B+
Retailer 14
-
$4,753 NZD
View
Retailer 15
-
$4,827 NZD
View
Price last confirmed 16 days ago
B+
Retailer 16
-
$4,865 NZD
View
B+
Retailer 17
-
$6,003 NZD
View
B
Retailer 18
-
$7,226 NZD
View
Most Expensive
NZ Jewellers
64dd4573-0d9b-4409-8f8a-84c3ac87e9dd · Oct 20
$8,745 NZD
$4,848 USD
View
Price last confirmed 17 days ago
18 more retailers have this diamond
Prices start from $3,094 NZDSave up to $4,133 NZD

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
$3,094 NZD