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Round|Natural|GIA

1.00ct H IF Round Natural Diamond

EX • H/IF • GIA 2558478534

Certificate GIA 2558478534

Diamond specifications and retailer prices

From $4,531 NZD
As of November 4, 2026
Save $6,144 NZD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,675 NZD 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2558478534. Listed at 19 retailers as of November 4, 2026, with prices from $4,531 to $10,675, a $6,144 spread on the same certified stone. NZ Jewellers lists it at $10,675. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
H
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2558478534
Dimensions6.33 × 6.38 × 3.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.33 mm6.38 mm1.00 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2558478534
Side View
Table 57.0%Crown 36°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 62.4%

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 4
Current: $5,849 NZD|Low: $4,531 NZD|High: $10,369 NZD|Avg: $6,779 NZD|-5.5%
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 6, 2026
Retailer 11$4,531 NZD
Retailer 10$5,109 NZD
Retailer 12$5,655 NZD
Retailer 7$5,692 NZD
Retailer 1$5,849 NZD
Retailer 4$6,127 NZD
Retailer 3$6,363 NZD
Retailer 2$6,569 NZD
Retailer 5$7,105 NZD
Retailer 8$7,126 NZD
Retailer 6$7,478 NZD
Retailer 9$10,220 NZD

44 data points across 12 retailers

19 retailers$4,531 NZD to $10,675 NZD

A
Cheapest Retailer
-
$4,531 NZD
A
Retailer 2
-
$5,109 NZD
View
A
Retailer 3
-
$5,438 NZD
View
A
Retailer 4
-
$5,655 NZD
View
Final sale: no returns
A
Retailer 5
-
$5,692 NZD
View
A
Retailer 6
-
$5,849 NZD
View
A
Retailer 7
-
$5,940 NZD
View
Retailer 8
-
$6,127 NZD
View
Price last confirmed 8 days ago
Retailer 9
-
$6,290 NZD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$6,363 NZD
View
Retailer 11
-
$6,569 NZD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$6,733 NZD
View
B+
Retailer 13
-
$7,069 NZD
View
A
Retailer 14
-
$7,105 NZD
View
B+
Retailer 15
-
$7,126 NZD
View
B+
Retailer 16
-
$7,478 NZD
View
B
Retailer 17
-
$8,718 NZD
View
B+
Retailer 18
-
$10,220 NZD
View
Most Expensive
B
NZ Jewellers
f6228937-44fb-42ff-aabc-db2c2da6da36 · Nov 5
$10,675 NZD
$6,001 USD
View
18 more retailers have this diamond
Prices start from $4,531 NZDSave up to $6,144 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
$4,531 NZD