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Oval|Natural|GIA

0.50ct I SI1 Oval Natural Diamond

GD • I/SI1 • GIA 6551867924

Certificate GIA 6551867924

Diamond specifications and retailer prices

From £345 GBP
$462 USD
As of October 31, 2026
Save £799 GBP (70%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,554 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551867924. Listed at 18 retailers as of October 31, 2026, with a 232% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551867924
Dimensions6.43 × 4.33 × 2.79 mm
L/W Ratio1.48
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.43 mm4.33 mm0.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceMedium
CertificateGIA 6551867924
Side View
Table 55.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 64.6%

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 31
Current: £608 GBP|Low: £345 GBP|High: £1,422 GBP|Avg: £669 GBP|-1.3%
Retailer 1
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
Retailer 15
Retailer 16
November 1, 2026
Retailer 16£345 GBP
Retailer 11£449 GBP
Retailer 2£455 GBP
Retailer 5£463 GBP
Retailer 3£484 GBP
Retailer 8£549 GBP
Retailer 7£569 GBP
Retailer 14£590 GBP
Retailer 4£592 GBP
Retailer 1£608 GBP
Retailer 10£611 GBP
Retailer 12£661 GBP
Retailer 15£690 GBP
Retailer 13£765 GBP
Retailer 9£1,144 GBP
Retailer 6£1,422 GBP

26 data points across 16 retailers

18 retailers£345 GBP to £1,144 GBP

B+
Cheapest Retailer
-
£345 GBP
$462 USD
Final sale: no returns
B+
Retailer 2
-
£449 GBP
$601 USD
View
B+
Retailer 3
-
£455 GBP
$610 USD
View
B+
Retailer 4
-
£463 GBP
$621 USD
View
B
Retailer 5
-
£484 GBP
$648 USD
View
B
Retailer 6
-
£518 GBP
$694 USD
View
B
Retailer 7
-
£549 GBP
$735 USD
View
B
Retailer 8
-
£569 GBP
$763 USD
View
B
Retailer 9
-
£590 GBP
$790 USD
View
B
Retailer 10
-
£592 GBP
$794 USD
View
B
Retailer 11
-
£608 GBP
View
B
Retailer 12
-
£611 GBP
View
B
Retailer 13
-
£661 GBP
€844 EUR
View
B
Retailer 14
-
£690 GBP
$924 USD
View
C
Retailer 15
-
£765 GBP
ZAR 16,555 ZAR
View
C
Retailer 16
-
£1,144 GBP
View
Retailer 17
-
£1,422 GBP
CA$2,646 CAD
View
Price under review
Most Expensive
NZ Jewellers
1c004742-4301-41a0-ad57-ee22836fc6ad · Oct 30
£1,554 GBP
$2,082 USD
View
Price under review
17 more retailers have this diamond
Prices start from £345 GBPSave up to £799 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
£345 GBP