Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

GD • F/SI2 • GIA 1548077366

Certificate GIA 1548077366

Diamond specifications and retailer prices

From £488 GBP
As of November 6, 2026
Save £732 GBP (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,657 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1548077366. Listed at 13 retailers as of November 2, 2026, with a 150% 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

0.51
Carat
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548077366
Dimensions6.54 × 4.65 × 2.73 mm
L/W Ratio1.41
Key to symbols
Feather, Twinning Wisp, Cloud, Crystal
Top View
6.54 mm4.65 mm0.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1548077366
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 58.8%

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: £1,657 GBP|Low: £488 GBP|High: £1,657 GBP|Avg: £738 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3£488 GBP
Retailer 6£507 GBP
Retailer 9£528 GBP
Retailer 10£528 GBP
Retailer 8£549 GBP
Retailer 11£610 GBP
Retailer 2£628 GBP
Retailer 4£643 GBP
Retailer 7£751 GBP
Retailer 5£1,220 GBP
NZ Jewellers£1,657 GBP

42 data points across 11 retailers

13 retailers£488 GBP to £1,220 GBP

B+
Cheapest Retailer
-
£488 GBP
Final sale: no returns
B+
Retailer 2
-
£507 GBP
View
B+
Retailer 3
-
£528 GBP
View
Retailer 4
-
£528 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£549 GBP
View
B
Retailer 6
-
£610 GBP
View
B
Retailer 7
-
£620 GBP
View
B
Retailer 8
-
£627 GBP
View
B
Retailer 9
-
£628 GBP
View
B
Retailer 10
-
£643 GBP
View
B
Retailer 11
-
£751 GBP
View
B
Retailer 12
-
£1,220 GBP
View
Most Expensive
NZ Jewellers
958e97f1-b174-4e51-847f-dcf10e3b2d45 · Nov 5
£1,657 GBP
$2,218 USD
View
Price under review
12 more retailers have this diamond
Prices start from £488 GBPSave up to £732 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+
0.51ct Oval
£488 GBP