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Oval|Natural|GIA

1.50ct I SI2 Oval Natural Diamond

ID • I/SI2 • GIA 3535676860

Certificate GIA 3535676860

Diamond specifications and retailer prices

From $4,285 AUD
As of November 6, 2026
Save $5,523 AUD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,873 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3535676860. Listed at 20 retailers as of November 5, 2026, with a 129% 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

1.50
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3535676860
Dimensions9.21 × 6.50 × 4.11 mm
L/W Ratio1.42
Top View
9.21 mm6.50 mm1.50 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3535676860
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,808 AUD|Low: $4,285 AUD|High: $9,873 AUD|Avg: $6,089 AUD|-0.7%
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
November 6, 2026
Retailer 6$4,285 AUD
Retailer 2$4,532 AUD
Retailer 15$5,094 AUD
Retailer 9$5,231 AUD
Retailer 11$5,410 AUD
Retailer 13$5,448 AUD
Retailer 10$5,461 AUD
Retailer 16$5,629 AUD
Retailer 8$5,667 AUD
Retailer 14$5,701 AUD
Retailer 7$5,842 AUD
Retailer 3$5,846 AUD
Retailer 4$5,923 AUD
Retailer 5$6,495 AUD
Retailer 12$6,554 AUD
Retailer 17$9,414 AUD
NZ Jewellers$9,808 AUD

22 data points across 17 retailers

20 retailers$4,285 AUD to $9,808 AUD

A
Cheapest Retailer
-
$4,285 AUD
A
Retailer 2
-
$4,532 AUD
View
A
Retailer 3
-
$5,094 AUD
View
A
Retailer 4
-
$5,122 AUD
View
A
Retailer 5
-
$5,231 AUD
View
Final sale: no returns
A
Retailer 6
-
$5,410 AUD
View
A
Retailer 7
-
$5,448 AUD
View
A
Retailer 8
-
$5,461 AUD
View
A
Retailer 9
-
$5,629 AUD
View
Retailer 10
-
$5,667 AUD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$5,683 AUD
View
A
Retailer 12
-
$5,701 AUD
View
A
Retailer 13
-
$5,842 AUD
View
A
Retailer 14
-
$5,846 AUD
View
A
Retailer 15
-
$5,923 AUD
View
A
Retailer 16
-
$6,495 AUD
View
A
Retailer 17
-
$6,554 AUD
View
B+
Retailer 18
-
$9,414 AUD
View
B+
Retailer 19
-
$9,808 AUD
View
Most Expensive
NZ Jewellers
5a3c6948-4792-4bd2-bcc8-c1c3c6f8dba6 · Oct 17
$9,873 AUD
$6,784 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from $4,285 AUDSave up to $5,523 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
1.50ct Oval
$4,285 AUD