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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 £332 GBP
$445 USD
As of October 29, 2026
Save £501 GBP (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,381 GBP 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 29
Current: £1,381 GBP|Low: £228 GBP|High: £1,381 GBP|Avg: £522 GBP
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£332 GBP
Retailer 3£360 GBP
Retailer 12£376 GBP
Retailer 5£388 GBP
Retailer 10£388 GBP
Retailer 11£416 GBP
Retailer 9£435 GBP
Retailer 2£450 GBP
Retailer 4£458 GBP
Retailer 13£463 GBP
Retailer 6£496 GBP
Retailer 7£833 GBP
NZ Jewellers£1,381 GBP

45 data points across 13 retailers

15 retailers£332 GBP to £833 GBP

A
Cheapest Retailer
-
£332 GBP
$445 USD
Final sale: no returns
Retailer 2
-
£336 GBP
$450 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
£360 GBP
$483 USD
View
B+
Retailer 4
-
£376 GBP
SGD 681 SGD
View
B+
Retailer 5
-
£388 GBP
$520 USD
View
B+
Retailer 6
-
£388 GBP
$520 USD
View
B+
Retailer 7
-
£416 GBP
$557 USD
View
B+
Retailer 8
-
£416 GBP
$557 USD
View
Retailer 9
-
£435 GBP
View
Price last confirmed 31 days ago
B+
Retailer 10
-
£450 GBP
View
B+
Retailer 11
-
£458 GBP
$614 USD
View
B+
Retailer 12
-
£463 GBP
$620 USD
View
B
Retailer 13
-
£496 GBP
€633 EUR
View
B
Retailer 14
-
£833 GBP
View
Most Expensive
NZ Jewellers
245a2889-8cf5-4d79-a2e2-e9b6bb2c4a7b · Oct 30
£1,381 GBP
$1,850 USD
View
Price under review
14 more retailers have this diamond
Prices start from £332 GBPSave up to £501 GBP

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
£332 GBP