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Oval|Natural|GIA

0.50ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 5566645889

Certificate GIA 5566645889

Diamond specifications and retailer prices

From £237 GBP
As of November 6, 2026
Save £990 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,227 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566645889. Listed at 14 retailers as of November 5, 2026, with prices from £237 to £1,227, a £990 spread on the same certified stone. NZ Jewellers lists it at £1,227. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5566645889
Dimensions6.21 × 4.43 × 2.67 mm
L/W Ratio1.40
Top View
6.21 mm4.43 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5566645889
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.2%

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: £1,227 GBP|Low: £237 GBP|High: £1,227 GBP|Avg: £456 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
Retailer 14
November 6, 2026
Retailer 2£237 GBP
Retailer 6£277 GBP
Retailer 5£320 GBP
Retailer 13£344 GBP
Retailer 14£369 GBP
Retailer 8£390 GBP
Retailer 7£393 GBP
Retailer 4£418 GBP
Retailer 11£442 GBP
Retailer 12£478 GBP
Retailer 9£496 GBP
Retailer 3£525 GBP
Retailer 10£738 GBP
NZ Jewellers£1,227 GBP

8 data points across 14 retailers

14 retailers£237 GBP to £1,227 GBP

A
Cheapest Retailer
-
£237 GBP
A
Retailer 2
-
£277 GBP
View
A
Retailer 3
-
£320 GBP
View
A
Retailer 4
-
£344 GBP
View
B+
Retailer 5
-
£369 GBP
View
B+
Retailer 6
-
£390 GBP
View
B+
Retailer 7
-
£393 GBP
View
B+
Retailer 8
-
£418 GBP
View
B+
Retailer 9
-
£442 GBP
View
B
Retailer 10
-
£478 GBP
View
B
Retailer 11
-
£496 GBP
View
B+
Retailer 12
-
£525 GBP
View
B
Retailer 13
-
£738 GBP
View
Most Expensive
B
NZ Jewellers
1791f37d-70e9-4de6-8a8c-82e44e152fdc · Nov 5
£1,227 GBP
$1,642 USD
View
13 more retailers have this diamond
Prices start from £237 GBPSave up to £990 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
£237 GBP