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Oval|Natural|GIA

0.50ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 1557137309

Certificate GIA 1557137309

Diamond specifications and retailer prices

From £533 GBP
$714 USD
As of October 30, 2026
Save £536 GBP (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,872 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 G 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 1557137309. Listed at 17 retailers as of October 26, 2026, with a 101% 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557137309
Dimensions6.53 × 4.30 × 2.68 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.53 mm4.30 mm0.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557137309
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,872 GBP|Low: £462 GBP|High: £1,872 GBP|Avg: £866 GBP|+9.3%
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 31, 2026
Retailer 4£533 GBP
Retailer 6£546 GBP
Retailer 10£551 GBP
Retailer 11£597 GBP
Retailer 12£605 GBP
Retailer 3£620 GBP
Retailer 14£689 GBP
Retailer 13£698 GBP
Retailer 7£699 GBP
Retailer 8£718 GBP
Retailer 2£845 GBP
Retailer 9£1,069 GBP
Retailer 5£1,431 GBP
NZ Jewellers£1,872 GBP

42 data points across 14 retailers

17 retailers£533 GBP to £1,069 GBP

Retailer 1
-
£412 GBP
A$850 AUD
Price last confirmed 172 days ago
B+
Retailer 2
-
£533 GBP
$714 USD
View
Retailer 3
-
£546 GBP
$732 USD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
£551 GBP
$738 USD
View
Final sale: no returns
B+
Retailer 5
-
£597 GBP
$800 USD
View
B+
Retailer 6
-
£605 GBP
$811 USD
View
B+
Retailer 7
-
£620 GBP
$831 USD
View
Retailer 8
-
£645 GBP
$864 USD
View
Price last confirmed 13 days ago
B+
Retailer 9
-
£689 GBP
$923 USD
View
B+
Retailer 10
-
£698 GBP
$935 USD
View
B+
Retailer 11
-
£699 GBP
View
B
Retailer 12
-
£718 GBP
View
B
Retailer 13
-
£845 GBP
€1,078 EUR
View
B
Retailer 14
-
£1,069 GBP
View
Retailer 15
-
£1,431 GBP
View
Price last confirmed 11 days ago
Retailer 16
-
£1,713 GBP
$2,295 USD
View
Price under review
Most Expensive
NZ Jewellers
4d6437fd-a68e-4bed-ae1e-170769d86bdc · Oct 30
£1,872 GBP
$2,508 USD
View
Price under review
16 more retailers have this diamond
Prices start from £533 GBPSave up to £536 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.

B+
0.50ct Oval
£533 GBP