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Oval|Natural|GIA

0.50ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 1559731483

Certificate GIA 1559731483

Diamond specifications and retailer prices

From £208 GBP
As of November 6, 2026
Save £958 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,279 GBP at NZ Jewellers · As of August 29, 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 I 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 1559731483. Listed at 10 retailers as of November 5, 2026, with a 459% 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559731483
Dimensions6.59 × 4.28 × 2.61 mm
L/W Ratio1.54
Girdle conditionVery Thick
Top View
6.59 mm4.28 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559731483
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 60.9%

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 6
Current: £1,166 GBP|Low: £178 GBP|High: £1,166 GBP|Avg: £477 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£208 GBP
Retailer 2£223 GBP
Retailer 3£361 GBP
Retailer 4£370 GBP
Retailer 7£402 GBP
Retailer 9£419 GBP
Retailer 6£491 GBP
Retailer 5£702 GBP
NZ Jewellers£1,166 GBP

30 data points across 9 retailers

10 retailers£208 GBP to £1,166 GBP

A
Cheapest Retailer
-
£208 GBP
Final sale: no returns
A
Retailer 2
-
£223 GBP
View
A
Retailer 3
-
£361 GBP
View
A
Retailer 4
-
£370 GBP
View
B+
Retailer 5
-
£402 GBP
View
B+
Retailer 6
-
£419 GBP
View
B+
Retailer 7
-
£491 GBP
View
B
Retailer 8
-
£702 GBP
View
B
Retailer 9
-
£1,166 GBP
View
Most Expensive
NZ Jewellers
4dc4b8df-09c7-432d-890f-e3f97f0a0366 · Aug 29
£1,279 GBP
$1,712 USD
View
Price last confirmed 69 days ago
9 more retailers have this diamond
Prices start from £208 GBPSave up to £958 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
£208 GBP