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Oval|Natural|GIA

0.50ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 1242055814

Certificate GIA 1242055814

Diamond specifications and retailer prices

From $634 AUD
$445 USD
As of October 31, 2026
Save $956 AUD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,634 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.5ct natural oval diamond

This 0.5ct natural oval sits in the half to three-quarter 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 1242055814. Listed at 15 retailers as of October 26, 2026, with a 151% 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

0.50
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1242055814
Dimensions6.03 × 4.32 × 2.83 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Crystal
Top View
6.03 mm4.32 mm0.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1242055814
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.4%

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: Oct 31
Current: $2,634 AUD|Low: $436 AUD|High: $2,634 AUD|Avg: $995 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
October 31, 2026
Retailer 8$634 AUD
Retailer 3$688 AUD
Retailer 12$717 AUD
Retailer 5$740 AUD
Retailer 10$740 AUD
Retailer 11$793 AUD
Retailer 9$830 AUD
Retailer 2$858 AUD
Retailer 4$874 AUD
Retailer 13$883 AUD
Retailer 6$946 AUD
Retailer 7$1,589 AUD
NZ Jewellers$2,634 AUD

45 data points across 13 retailers

15 retailers$634 AUD to $1,589 AUD

A
Cheapest Retailer
-
$634 AUD
$445 USD
Final sale: no returns
Retailer 2
-
$641 AUD
$450 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$688 AUD
$483 USD
View
B+
Retailer 4
-
$717 AUD
SGD 681 SGD
View
B+
Retailer 5
-
$740 AUD
$520 USD
View
B+
Retailer 6
-
$740 AUD
$520 USD
View
B+
Retailer 7
-
$793 AUD
$557 USD
View
B+
Retailer 8
-
$793 AUD
$557 USD
View
Retailer 9
-
$830 AUD
£459 GBP
View
Price last confirmed 31 days ago
B+
Retailer 10
-
$858 AUD
£474 GBP
View
B+
Retailer 11
-
$874 AUD
$614 USD
View
B+
Retailer 12
-
$883 AUD
$620 USD
View
B
Retailer 13
-
$946 AUD
€633 EUR
View
B
Retailer 14
-
$1,589 AUD
£879 GBP
View
Most Expensive
NZ Jewellers
245a2889-8cf5-4d79-a2e2-e9b6bb2c4a7b · Oct 30
$2,634 AUD
$1,850 USD
View
Price under review
14 more retailers have this diamond
Prices start from $634 AUDSave up to $956 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
0.50ct Oval
$634 AUD