Oval|Natural|GIA

0.50ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 1545913286

Certificate GIA 1545913286

Diamond specifications and retailer prices

From £252 GBP
As of November 6, 2026
Save £1,062 GBP (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,313 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545913286. Listed at 18 retailers as of November 5, 2026, with prices from £252 to £1,313, a £1,062 spread on the same certified stone. NZ Jewellers lists it at £1,313. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545913286
Dimensions6.38 × 4.35 × 2.74 mm
L/W Ratio1.47
Girdle conditionFaceted
Top View
6.38 mm4.35 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545913286
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.9%

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: £252 GBP|Low: £252 GBP|High: £800 GBP|Avg: £444 GBP|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1£252 GBP
Retailer 2£315 GBP
Retailer 7£352 GBP
Retailer 4£361 GBP
Retailer 9£409 GBP
Retailer 3£418 GBP
Retailer 6£424 GBP
Retailer 10£487 GBP
Retailer 5£515 GBP
Retailer 8£791 GBP

29 data points across 10 retailers

18 retailers£252 GBP to £1,313 GBP

A
Cheapest Retailer
-
£252 GBP
A
Retailer 2
-
£296 GBP
View
A
Retailer 3
-
£315 GBP
View
Final sale: no returns
A
Retailer 4
-
£343 GBP
View
A
Retailer 5
-
£352 GBP
View
A
Retailer 6
-
£361 GBP
View
A
Retailer 7
-
£369 GBP
View
A
Retailer 8
-
£395 GBP
View
A
Retailer 9
-
£409 GBP
View
A
Retailer 10
-
£418 GBP
View
A
Retailer 11
-
£424 GBP
View
B+
Retailer 12
-
£471 GBP
View
B+
Retailer 13
-
£487 GBP
View
B+
Retailer 14
-
£489 GBP
View
B+
Retailer 15
-
£515 GBP
View
B
Retailer 16
-
£791 GBP
View
Retailer 17
-
£1,313 GBP
View
Price last confirmed 69 days ago
Most Expensive
B
NZ Jewellers
761ba98e-a81e-46b3-b0ed-0d96da0bb0e6 · Nov 5
£1,313 GBP
$1,758 USD
View
17 more retailers have this diamond
Prices start from £252 GBPSave up to £1,062 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
£252 GBP