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Oval|Natural|GIA

1.30ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 1558494958

Certificate GIA 1558494958

Diamond specifications and retailer prices

From $4,120 AUD
As of November 7, 2026
Save $4,403 AUD (52%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $8,523 AUD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.3ct natural oval diamond

This 1.3ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded I 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 1558494958. Listed at 25 retailers as of November 7, 2026, with a 107% 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

1.30
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558494958
Dimensions8.86 × 6.07 × 3.73 mm
L/W Ratio1.46
Top View
8.86 mm6.07 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558494958
Side View
Table 61.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 61.4%

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 7
Current: $8,523 AUD|Low: $4,120 AUD|High: $8,523 AUD|Avg: $5,528 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
November 7, 2026
Retailer 7$4,120 AUD
Retailer 6$4,515 AUD
Retailer 2$4,595 AUD
Retailer 9$4,777 AUD
Retailer 5$4,806 AUD
Retailer 4$4,892 AUD
Retailer 12$5,062 AUD
Retailer 10$5,206 AUD
Retailer 3$5,644 AUD
Retailer 14$5,724 AUD
Retailer 13$5,970 AUD
Retailer 8$6,252 AUD
Retailer 11$8,136 AUD
NZ Jewellers$8,523 AUD

29 data points across 14 retailers

25 retailers$4,120 AUD to $8,523 AUD

A
Cheapest Retailer
-
$4,120 AUD
A
Retailer 2
-
$4,341 AUD
View
A
Retailer 3
-
$4,515 AUD
View
Final sale: no returns
A
Retailer 4
-
$4,595 AUD
View
A
Retailer 5
-
$4,723 AUD
View
A
Retailer 6
-
$4,777 AUD
View
A
Retailer 7
-
$4,806 AUD
View
Retailer 8
-
$4,892 AUD
View
Price last confirmed 43 days ago
A
Retailer 9
-
$4,892 AUD
View
A
Retailer 10
-
$4,892 AUD
View
A
Retailer 11
-
$4,934 AUD
View
A
Retailer 12
-
$5,062 AUD
View
B+
Retailer 13
-
$5,079 AUD
View
B+
Retailer 14
-
$5,101 AUD
View
B+
Retailer 15
-
$5,206 AUD
View
Retailer 16
-
$5,225 AUD
View
Price last confirmed 31 days ago
B+
Retailer 17
-
$5,401 AUD
View
Retailer 18
-
$5,644 AUD
View
Price last confirmed 45 days ago
B+
Retailer 19
-
$5,644 AUD
View
B+
Retailer 20
-
$5,724 AUD
View
B+
Retailer 21
-
$5,970 AUD
View
B+
Retailer 22
-
$6,252 AUD
View
B
Retailer 23
-
$8,136 AUD
View
B
Retailer 24
-
$8,523 AUD
View
Most Expensive
NZ Jewellers
d43d8e48-6917-461b-af79-2de0d6ac3ca9 · Sep 26
$8,523 AUD
$5,856 USD
View
Price last confirmed 42 days ago
24 more retailers have this diamond
Prices start from $4,120 AUDSave up to $4,403 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
1.30ct Oval
$4,120 AUD