Oval|Natural|GIA

0.50ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1545851428

Certificate GIA 1545851428

Diamond specifications and retailer prices

From £389 GBP
As of November 6, 2026
Save £811 GBP (68%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,629 GBP at NZ Jewellers · As of November 5, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545851428. Listed at 23 retailers as of November 2, 2026, with a 208% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.11°
Pavilion angle33.32°
OriginNatural
Grading LabGIA
CertificateGIA 1545851428
Dimensions6.81 × 4.40 × 2.54 mm
L/W Ratio1.55
Key to symbols
Feather
Top View
6.81 mm4.40 mm0.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545851428
Side View
Table 59.0%Crown 37.11°Girdle: MED-THKPavilion 33.32°Culet: NoneDepth 57.8%

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: £1,629 GBP|Low: £389 GBP|High: £1,629 GBP|Avg: £668 GBP
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 5
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Retailer 8
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Retailer 19
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Retailer 22
November 6, 2026
Retailer 2£389 GBP
Retailer 11£449 GBP
Retailer 10£480 GBP
Retailer 5£492 GBP
Retailer 17£510 GBP
Retailer 3£520 GBP
Retailer 12£520 GBP
Retailer 4£539 GBP
Retailer 6£541 GBP
Retailer 13£550 GBP
Retailer 7£600 GBP
Retailer 22£618 GBP
Retailer 16£631 GBP
Retailer 21£643 GBP
Retailer 8£654 GBP
Retailer 14£713 GBP
Retailer 9£719 GBP
Retailer 19£738 GBP
Retailer 15£740 GBP
Retailer 18£802 GBP
Retailer 20£1,200 GBP
NZ Jewellers£1,629 GBP

27 data points across 22 retailers

23 retailers£389 GBP to £1,200 GBP

A
Cheapest Retailer
-
£389 GBP
A
Retailer 2
-
£449 GBP
View
A
Retailer 3
-
£480 GBP
View
Final sale: no returns
A
Retailer 4
-
£492 GBP
View
A
Retailer 5
-
£510 GBP
View
B+
Retailer 6
-
£520 GBP
View
Retailer 7
-
£520 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£539 GBP
View
B+
Retailer 9
-
£541 GBP
View
B+
Retailer 10
-
£550 GBP
View
B+
Retailer 11
-
£600 GBP
View
B+
Retailer 12
-
£618 GBP
View
B+
Retailer 13
-
£631 GBP
View
B+
Retailer 14
-
£643 GBP
View
B
Retailer 15
-
£654 GBP
View
B+
Retailer 16
-
£713 GBP
View
B+
Retailer 17
-
£719 GBP
View
B+
Retailer 18
-
£738 GBP
View
B+
Retailer 19
-
£740 GBP
View
B+
Retailer 20
-
£802 GBP
View
Retailer 21
-
£811 GBP
View
Price last confirmed 34 days ago
B
Retailer 22
-
£1,200 GBP
View
Most Expensive
NZ Jewellers
d8920225-8815-402e-9035-e44a7c586bdc · Nov 5
£1,629 GBP
$2,181 USD
View
Price under review
22 more retailers have this diamond
Prices start from £389 GBPSave up to £811 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
£389 GBP