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Oval|Natural|GIA

1.00ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 2558391525

Certificate GIA 2558391525

Diamond specifications and retailer prices

From $3,568 AUD
$2,506 USD
As of November 1, 2026
Save $4,863 AUD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,431 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558391525. Listed at 18 retailers as of October 30, 2026, with prices from $3,568 to $8,431, a $4,863 spread on the same certified stone. NZ Jewellers lists it at $8,431. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.71°
OriginNatural
Grading LabGIA
CertificateGIA 2558391525
Dimensions8.37 × 5.38 × 3.44 mm
L/W Ratio1.56
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Natural
Top View
8.37 mm5.38 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558391525
Side View
Table 53.0%Crown 35.71°GirdlePavilionCulet: NoneDepth 63.9%

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 1
Current: $8,431 AUD|Low: $3,429 AUD|High: $8,431 AUD|Avg: $4,574 AUD
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
November 1, 2026
Retailer 4$3,568 AUD
Retailer 5$3,612 AUD
Retailer 3$3,717 AUD
Retailer 8$3,721 AUD
Retailer 2$3,934 AUD
Retailer 7$3,950 AUD
Retailer 16$4,033 AUD
Retailer 18$4,033 AUD
Retailer 17$4,188 AUD
Retailer 15$4,235 AUD
Retailer 12$4,311 AUD
Retailer 10$4,542 AUD
Retailer 6$4,594 AUD
Retailer 9$4,652 AUD
Retailer 14$4,721 AUD
Retailer 13$4,957 AUD
Retailer 11$7,066 AUD
NZ Jewellers$8,431 AUD

32 data points across 18 retailers

18 retailers$3,568 AUD to $8,431 AUD

A
Cheapest Retailer
-
$3,568 AUD
$2,506 USD
A
Retailer 2
-
$3,612 AUD
$2,537 USD
View
B+
Retailer 3
-
$3,717 AUD
$2,611 USD
View
B+
Retailer 4
-
$3,721 AUD
$2,614 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,934 AUD
£2,176 GBP
View
B+
Retailer 6
-
$3,950 AUD
$2,775 USD
View
B+
Retailer 7
-
$4,033 AUD
$2,833 USD
View
B+
Retailer 8
-
$4,033 AUD
$2,833 USD
View
B+
Retailer 9
-
$4,188 AUD
$2,942 USD
View
B+
Retailer 10
-
$4,235 AUD
$2,975 USD
View
B+
Retailer 11
-
$4,311 AUD
£2,384 GBP
View
Retailer 12
-
$4,542 AUD
View
Price last confirmed 25 days ago
B
Retailer 13
-
$4,594 AUD
$3,227 USD
View
B
Retailer 14
-
$4,652 AUD
$3,268 USD
View
B
Retailer 15
-
$4,721 AUD
€3,158 EUR
View
B+
Retailer 16
-
$4,957 AUD
ZAR 56,250 ZAR
View
B
Retailer 17
-
$7,066 AUD
£3,908 GBP
View
Most Expensive
B
NZ Jewellers
e5cfa52c-735d-43c2-ba40-497b118d569b · Oct 30
$8,431 AUD
$5,922 USD
View
17 more retailers have this diamond
Prices start from $3,568 AUDSave up to $4,863 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 Oval
$3,568 AUD