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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 $5,311 NZD
As of November 6, 2026
Save $6,846 NZD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,238 NZD 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $12,156 NZD|Low: $5,311 NZD|High: $12,238 NZD|Avg: $7,547 NZD|-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$5,311 NZD
Retailer 2$5,617 NZD
Retailer 15$6,314 NZD
Retailer 9$6,483 NZD
Retailer 11$6,705 NZD
Retailer 13$6,752 NZD
Retailer 10$6,768 NZD
Retailer 16$6,977 NZD
Retailer 8$7,024 NZD
Retailer 14$7,066 NZD
Retailer 7$7,241 NZD
Retailer 3$7,246 NZD
Retailer 4$7,342 NZD
Retailer 5$8,051 NZD
Retailer 12$8,123 NZD
Retailer 17$11,668 NZD
NZ Jewellers$12,156 NZD

22 data points across 17 retailers

20 retailers$5,311 NZD to $12,156 NZD

A
Cheapest Retailer
-
$5,311 NZD
A
Retailer 2
-
$5,617 NZD
View
A
Retailer 3
-
$6,314 NZD
View
A
Retailer 4
-
$6,348 NZD
View
A
Retailer 5
-
$6,483 NZD
View
Final sale: no returns
A
Retailer 6
-
$6,705 NZD
View
A
Retailer 7
-
$6,752 NZD
View
A
Retailer 8
-
$6,768 NZD
View
A
Retailer 9
-
$6,977 NZD
View
Retailer 10
-
$7,024 NZD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$7,044 NZD
View
A
Retailer 12
-
$7,066 NZD
View
A
Retailer 13
-
$7,241 NZD
View
A
Retailer 14
-
$7,246 NZD
View
A
Retailer 15
-
$7,342 NZD
View
A
Retailer 16
-
$8,051 NZD
View
A
Retailer 17
-
$8,123 NZD
View
B+
Retailer 18
-
$11,668 NZD
View
B+
Retailer 19
-
$12,156 NZD
View
Most Expensive
NZ Jewellers
5a3c6948-4792-4bd2-bcc8-c1c3c6f8dba6 · Oct 17
$12,238 NZD
$6,784 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from $5,311 NZDSave up to $6,846 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
1.50ct Oval
$5,311 NZD