Oval|Natural|GIA

0.50ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 1242055814

Certificate GIA 1242055814

Diamond specifications and retailer prices

From $445 USD
As of October 29, 2026
Save $671 USD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,850 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,850 USD|Low: $306 USD|High: $1,850 USD|Avg: $688 USD
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
October 30, 2026
Retailer 9$445 USD
Retailer 3$483 USD
Retailer 13$504 USD
Retailer 5$520 USD
Retailer 11$520 USD
Retailer 6$557 USD
Retailer 12$557 USD
Retailer 10$583 USD
Retailer 2$602 USD
Retailer 4$614 USD
Retailer 14$620 USD
Retailer 7$666 USD
Retailer 8$1,116 USD
NZ Jewellers$1,850 USD

45 data points across 14 retailers

15 retailers$445 USD to $1,116 USD

A
Cheapest Retailer
-
$445 USD
Final sale: no returns
Retailer 2
-
$450 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$483 USD
View
B+
Retailer 4
-
$504 USD
SGD 681 SGD
View
B+
Retailer 5
-
$520 USD
View
B+
Retailer 6
-
$520 USD
View
B+
Retailer 7
-
$557 USD
View
B+
Retailer 8
-
$557 USD
View
Retailer 9
-
$583 USD
£459 GBP
View
Price last confirmed 30 days ago
B+
Retailer 10
-
$602 USD
£474 GBP
View
B+
Retailer 11
-
$614 USD
View
B+
Retailer 12
-
$620 USD
View
B
Retailer 13
-
$666 USD
€634 EUR
View
B
Retailer 14
-
$1,116 USD
£879 GBP
View
Most Expensive
NZ Jewellers
245a2889-8cf5-4d79-a2e2-e9b6bb2c4a7b · Oct 30
$1,850 USD
View
Price under review
14 more retailers have this diamond
Prices start from $445 USDSave up to $671 USD

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
$445 USD