Oval|Natural|GIA

0.50ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 1557604851

Certificate GIA 1557604851

Diamond specifications and retailer prices

From £407 GBP
As of November 6, 2026
Save £656 GBP (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,821 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1557604851. Listed at 19 retailers as of November 2, 2026, with a 161% 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557604851
Dimensions6.36 × 4.38 × 2.80 mm
L/W Ratio1.45
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
6.36 mm4.38 mm0.50 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1557604851
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.8%

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: Nov 6
Current: £691 GBP|Low: £370 GBP|High: £1,076 GBP|Avg: £771 GBP|+4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6£407 GBP
Retailer 5£661 GBP
Retailer 1£691 GBP
Retailer 8£814 GBP
Retailer 4£822 GBP
Retailer 7£873 GBP
Retailer 2£896 GBP
Retailer 3£1,063 GBP

45 data points across 8 retailers

19 retailers£407 GBP to £1,063 GBP

B+
Cheapest Retailer
-
£407 GBP
Final sale: no returns
B+
Retailer 2
-
£521 GBP
View
Retailer 3
-
£526 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£526 GBP
View
B+
Retailer 5
-
£537 GBP
View
B+
Retailer 6
-
£546 GBP
View
B
Retailer 7
-
£606 GBP
View
B
Retailer 8
-
£607 GBP
View
B
Retailer 9
-
£647 GBP
View
B
Retailer 10
-
£661 GBP
View
B
Retailer 11
-
£691 GBP
View
B
Retailer 12
-
£699 GBP
View
B
Retailer 13
-
£814 GBP
View
B
Retailer 14
-
£822 GBP
View
Retailer 15
-
£873 GBP
View
Price last confirmed 33 days ago
B
Retailer 16
-
£896 GBP
View
B
Retailer 17
-
£1,063 GBP
View
Retailer 18
-
£1,677 GBP
View
Price under review
Most Expensive
NZ Jewellers
36ac1ffc-188a-42b5-be73-f630ecd250d5 · Nov 5
£1,821 GBP
$2,437 USD
View
Price under review
18 more retailers have this diamond
Prices start from £407 GBPSave up to £656 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
£407 GBP