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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 $3,638 AUD
As of November 4, 2026
Save $4,934 AUD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,572 AUD 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 $3,638 to $8,572, a $4,934 spread on the same certified stone. NZ Jewellers lists it at $8,572. 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: $4,697 AUD|Low: $3,638 AUD|High: $8,327 AUD|Avg: $5,444 AUD|-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$3,638 AUD
Retailer 10$4,103 AUD
Retailer 12$4,541 AUD
Retailer 7$4,571 AUD
Retailer 1$4,697 AUD
Retailer 4$4,920 AUD
Retailer 3$5,110 AUD
Retailer 2$5,275 AUD
Retailer 5$5,705 AUD
Retailer 8$5,723 AUD
Retailer 6$6,005 AUD
Retailer 9$8,207 AUD

44 data points across 12 retailers

19 retailers$3,638 AUD to $8,572 AUD

A
Cheapest Retailer
-
$3,638 AUD
A
Retailer 2
-
$4,103 AUD
View
A
Retailer 3
-
$4,367 AUD
View
A
Retailer 4
-
$4,541 AUD
View
Final sale: no returns
A
Retailer 5
-
$4,571 AUD
View
A
Retailer 6
-
$4,697 AUD
View
A
Retailer 7
-
$4,770 AUD
View
Retailer 8
-
$4,920 AUD
View
Price last confirmed 8 days ago
Retailer 9
-
$5,051 AUD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$5,110 AUD
View
Retailer 11
-
$5,275 AUD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$5,407 AUD
View
B+
Retailer 13
-
$5,677 AUD
View
A
Retailer 14
-
$5,705 AUD
View
B+
Retailer 15
-
$5,723 AUD
View
B+
Retailer 16
-
$6,005 AUD
View
B
Retailer 17
-
$7,001 AUD
View
B+
Retailer 18
-
$8,207 AUD
View
Most Expensive
B
NZ Jewellers
f6228937-44fb-42ff-aabc-db2c2da6da36 · Nov 5
$8,572 AUD
$6,001 USD
View
18 more retailers have this diamond
Prices start from $3,638 AUDSave up to $4,934 AUD

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
$3,638 AUD