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Oval|Natural|GIA

1.50ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 5242028140

Certificate GIA 5242028140

Diamond specifications and retailer prices

From $3,116 AUD
HK$17,100 HKD
As of November 1, 2026
Save $5,700 AUD (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,816 AUD at NZ Jewellers · As of October 30, 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 J 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 5242028140. Listed at 10 retailers as of October 30, 2026, with prices from $3,116 to $8,816, a $5,700 spread on the same certified stone. NZ Jewellers lists it at $8,816. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.3°
OriginNatural
Grading LabGIA
CertificateGIA 5242028140
Dimensions8.81 × 6.29 × 4.05 mm
L/W Ratio1.40
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
8.81 mm6.29 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242028140
Side View
Table 63.0%CrownGirdle: STK-VTKPavilion 36.3°Culet: NoneDepth 64.3%

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 1
Current: $8,816 AUD|Low: $3,080 AUD|High: $8,816 AUD|Avg: $5,206 AUD|+9.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$3,116 AUD
Retailer 5$3,881 AUD
Retailer 4$4,217 AUD
Retailer 8$4,430 AUD
Retailer 7$4,483 AUD
Retailer 10$4,653 AUD
Retailer 2$5,061 AUD
Retailer 9$6,697 AUD
Retailer 3$7,053 AUD
NZ Jewellers$8,816 AUD

26 data points across 10 retailers

10 retailers$3,116 AUD to $8,816 AUD

A
Cheapest Retailer
-
$3,116 AUD
HK$17,100 HKD
A
Retailer 2
-
$3,881 AUD
$2,726 USD
View
A
Retailer 3
-
$4,217 AUD
$2,962 USD
View
A
Retailer 4
-
$4,430 AUD
SGD 4,205 SGD
View
A
Retailer 5
-
$4,483 AUD
$3,149 USD
View
A
Retailer 6
-
$4,653 AUD
View
A
Retailer 7
-
$5,061 AUD
€3,386 EUR
View
Retailer 8
-
$6,697 AUD
€4,480 EUR
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$7,053 AUD
£3,901 GBP
View
Most Expensive
B
NZ Jewellers
e69c17f0-9708-420a-b0ca-a29294a87730 · Oct 30
$8,816 AUD
$6,193 USD
View
9 more retailers have this diamond
Prices start from $3,116 AUDSave up to $5,700 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
$3,116 AUD