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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 $4,446 NZD
$2,506 USD
As of November 1, 2026
Save $6,061 NZD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,507 NZD 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 $4,446 to $10,507, a $6,061 spread on the same certified stone. NZ Jewellers lists it at $10,507. 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: $10,507 NZD|Low: $4,274 NZD|High: $10,507 NZD|Avg: $5,627 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
Retailer 18
November 2, 2026
Retailer 4$4,446 NZD
Retailer 5$4,501 NZD
Retailer 3$4,633 NZD
Retailer 8$4,638 NZD
Retailer 2$4,902 NZD
Retailer 7$4,924 NZD
Retailer 16$5,027 NZD
Retailer 18$5,027 NZD
Retailer 17$5,220 NZD
Retailer 15$5,278 NZD
Retailer 12$5,373 NZD
Retailer 10$5,661 NZD
Retailer 6$5,725 NZD
Retailer 9$5,798 NZD
Retailer 11$5,882 NZD
Retailer 14$6,178 NZD
Retailer 13$8,806 NZD
NZ Jewellers$10,507 NZD

32 data points across 18 retailers

18 retailers$4,446 NZD to $10,507 NZD

A
Cheapest Retailer
-
$4,446 NZD
$2,506 USD
A
Retailer 2
-
$4,501 NZD
$2,537 USD
View
B+
Retailer 3
-
$4,633 NZD
$2,611 USD
View
B+
Retailer 4
-
$4,638 NZD
$2,614 USD
View
Final sale: no returns
B+
Retailer 5
-
$4,902 NZD
£2,176 GBP
View
B+
Retailer 6
-
$4,924 NZD
$2,775 USD
View
B+
Retailer 7
-
$5,027 NZD
$2,833 USD
View
B+
Retailer 8
-
$5,027 NZD
$2,833 USD
View
B+
Retailer 9
-
$5,220 NZD
$2,942 USD
View
B+
Retailer 10
-
$5,278 NZD
$2,975 USD
View
B+
Retailer 11
-
$5,373 NZD
£2,384 GBP
View
Retailer 12
-
$5,661 NZD
A$4,909 AUD
View
Price last confirmed 25 days ago
B
Retailer 13
-
$5,725 NZD
$3,227 USD
View
B
Retailer 14
-
$5,798 NZD
$3,268 USD
View
B
Retailer 15
-
$5,882 NZD
€3,157 EUR
View
B+
Retailer 16
-
$6,178 NZD
ZAR 56,250 ZAR
View
B
Retailer 17
-
$8,806 NZD
£3,908 GBP
View
Most Expensive
B
NZ Jewellers
e5cfa52c-735d-43c2-ba40-497b118d569b · Oct 30
$10,507 NZD
$5,922 USD
View
17 more retailers have this diamond
Prices start from $4,446 NZDSave up to $6,061 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 Oval
$4,446 NZD