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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 $3,884 NZD
HK$17,100 HKD
As of November 1, 2026
Save $7,105 NZD (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $10,988 NZD 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 $3,884 to $10,988, a $7,105 spread on the same certified stone. NZ Jewellers lists it at $10,988. 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: $10,988 NZD|Low: $3,838 NZD|High: $10,988 NZD|Avg: $6,489 NZD|+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$3,884 NZD
Retailer 5$4,837 NZD
Retailer 4$5,255 NZD
Retailer 8$5,521 NZD
Retailer 7$5,587 NZD
Retailer 10$5,799 NZD
Retailer 2$6,308 NZD
Retailer 9$8,346 NZD
Retailer 3$8,790 NZD
NZ Jewellers$10,988 NZD

26 data points across 10 retailers

10 retailers$3,884 NZD to $10,988 NZD

A
Cheapest Retailer
-
$3,884 NZD
HK$17,100 HKD
A
Retailer 2
-
$4,837 NZD
$2,726 USD
View
A
Retailer 3
-
$5,255 NZD
$2,962 USD
View
A
Retailer 4
-
$5,521 NZD
SGD 4,205 SGD
View
A
Retailer 5
-
$5,587 NZD
$3,149 USD
View
A
Retailer 6
-
$5,799 NZD
A$5,028 AUD
View
A
Retailer 7
-
$6,308 NZD
€3,386 EUR
View
Retailer 8
-
$8,346 NZD
€4,480 EUR
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$8,790 NZD
£3,901 GBP
View
Most Expensive
B
NZ Jewellers
e69c17f0-9708-420a-b0ca-a29294a87730 · Oct 30
$10,988 NZD
$6,193 USD
View
9 more retailers have this diamond
Prices start from $3,884 NZDSave up to $7,105 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
$3,884 NZD