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Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

GD • F/SI2 • GIA 2566106412

Certificate GIA 2566106412

Diamond specifications and retailer prices

From £386 GBP
As of November 6, 2026
Save £928 GBP (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,314 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 2566106412. Listed at 13 retailers as of November 5, 2026, with prices from £386 to £1,314, a £928 spread on the same certified stone. NZ Jewellers lists it at £1,314. 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
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566106412
Dimensions6.28 × 4.49 × 2.76 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
6.28 mm4.49 mm0.51 ctF / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2566106412
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 61.6%

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: Nov 6
Current: £1,314 GBP|Low: £386 GBP|High: £1,369 GBP|Avg: £614 GBP|-4.0%
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 8£386 GBP
Retailer 7£419 GBP
Retailer 9£451 GBP
Retailer 3£453 GBP
Retailer 10£483 GBP
Retailer 2£498 GBP
Retailer 6£505 GBP
Retailer 4£517 GBP
Retailer 5£619 GBP
Retailer 11£970 GBP
NZ Jewellers£1,314 GBP

27 data points across 11 retailers

13 retailers£386 GBP to £1,314 GBP

B+
Cheapest Retailer
-
£386 GBP
Final sale: no returns
B+
Retailer 2
-
£419 GBP
View
B+
Retailer 3
-
£451 GBP
View
Retailer 4
-
£453 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
£459 GBP
View
Price last confirmed 39 days ago
B+
Retailer 6
-
£483 GBP
View
B+
Retailer 7
-
£498 GBP
View
B+
Retailer 8
-
£505 GBP
View
B+
Retailer 9
-
£517 GBP
View
B
Retailer 10
-
£569 GBP
View
B
Retailer 11
-
£619 GBP
View
B
Retailer 12
-
£970 GBP
View
Most Expensive
C
NZ Jewellers
7077bdde-8c55-420e-9381-28651a0bc877 · Nov 5
£1,314 GBP
$1,759 USD
View
12 more retailers have this diamond
Prices start from £386 GBPSave up to £928 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
£386 GBP