Oval|Natural|GIA

0.50ct I SI1 Oval Natural Diamond

GD • I/SI1 • GIA 6551025113

Certificate GIA 6551025113

Diamond specifications and retailer prices

From £316 GBP
$424 USD
As of October 31, 2026
Save £987 GBP (76%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,430 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 6551025113. Listed at 25 retailers as of October 30, 2026, with a 312% 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551025113
Dimensions6.41 × 4.49 × 2.78 mm
L/W Ratio1.43
Top View
6.41 mm4.49 mm0.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551025113
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.9%

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: Oct 31
Current: £560 GBP|Low: £316 GBP|High: £1,065 GBP|Avg: £594 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
November 1, 2026
Retailer 11£316 GBP
Retailer 10£430 GBP
Retailer 2£445 GBP
Retailer 4£467 GBP
Retailer 3£487 GBP
Retailer 9£560 GBP
Retailer 1£560 GBP
Retailer 5£561 GBP
Retailer 6£673 GBP
Retailer 12£686 GBP
Retailer 7£704 GBP
Retailer 8£1,059 GBP

44 data points across 12 retailers

25 retailers£316 GBP to £1,303 GBP

A
Cheapest Retailer
-
£316 GBP
$424 USD
Final sale: no returns
B+
Retailer 2
-
£413 GBP
$554 USD
View
B+
Retailer 3
-
£430 GBP
$576 USD
View
B+
Retailer 4
-
£430 GBP
$576 USD
View
B+
Retailer 5
-
£445 GBP
$596 USD
View
B+
Retailer 6
-
£445 GBP
$596 USD
View
B+
Retailer 7
-
£467 GBP
$626 USD
View
B+
Retailer 8
-
£477 GBP
$639 USD
View
B+
Retailer 9
-
£487 GBP
$653 USD
View
B+
Retailer 10
-
£498 GBP
$667 USD
View
B
Retailer 11
-
£503 GBP
$674 USD
View
B
Retailer 12
-
£530 GBP
$710 USD
View
B
Retailer 13
-
£530 GBP
$710 USD
View
B
Retailer 14
-
£543 GBP
$728 USD
View
B
Retailer 15
-
£545 GBP
$730 USD
View
B
Retailer 16
-
£560 GBP
$750 USD
View
B
Retailer 17
-
£560 GBP
View
B
Retailer 18
-
£561 GBP
View
B
Retailer 19
-
£575 GBP
$770 USD
View
B
Retailer 20
-
£673 GBP
€859 EUR
View
Retailer 21
-
£686 GBP
A$1,414 AUD
View
Price last confirmed 28 days ago
B
Retailer 22
-
£704 GBP
ZAR 15,236 ZAR
View
B
Retailer 23
-
£1,059 GBP
View
C
Retailer 24
-
£1,303 GBP
CA$2,425 CAD
View
Most Expensive
NZ Jewellers
788db243-5eb1-4b4c-b041-5fd0b1805bf3 · Oct 30
£1,430 GBP
$1,916 USD
View
Price under review
24 more retailers have this diamond
Prices start from £316 GBPSave up to £987 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
£316 GBP