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Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1478792767

Certificate GIA 1478792767

Diamond specifications and retailer prices

From £716 GBP
As of November 6, 2026
Save £848 GBP (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,090 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1478792767. Listed at 18 retailers as of November 4, 2026, with a 118% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1478792767
Dimensions6.46 × 4.31 × 2.72 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1478792767
Top View
6.46 mm4.31 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1478792767
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 63.2%

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: £758 GBP|Low: £608 GBP|High: £1,588 GBP|Avg: £999 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11£716 GBP
Retailer 8£721 GBP
Retailer 9£747 GBP
Retailer 1£758 GBP
Retailer 3£806 GBP
Retailer 10£882 GBP
Retailer 5£967 GBP
Retailer 2£1,120 GBP
Retailer 4£1,192 GBP
Retailer 6£1,322 GBP
Retailer 7£1,564 GBP

43 data points across 11 retailers

18 retailers£716 GBP to £1,564 GBP

B+
Cheapest Retailer
-
£716 GBP
Final sale: no returns
B+
Retailer 2
-
£719 GBP
View
B+
Retailer 3
-
£741 GBP
View
Retailer 4
-
£747 GBP
View
Price last confirmed 9 days ago
B
Retailer 5
-
£758 GBP
View
Retailer 6
-
£776 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£776 GBP
View
B
Retailer 8
-
£806 GBP
View
B
Retailer 9
-
£882 GBP
View
B
Retailer 10
-
£896 GBP
View
B
Retailer 11
-
£967 GBP
View
B
Retailer 12
-
£985 GBP
View
Retailer 13
-
£1,120 GBP
View
Price last confirmed 32 days ago
B
Retailer 14
-
£1,192 GBP
View
B
Retailer 15
-
£1,322 GBP
View
B
Retailer 16
-
£1,392 GBP
View
B
Retailer 17
-
£1,564 GBP
View
Most Expensive
NZ Jewellers
77584bb3-a968-4db0-8ddc-5397316cd7de · Nov 5
£2,090 GBP
$2,797 USD
View
Price under review
17 more retailers have this diamond
Prices start from £716 GBPSave up to £848 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
£716 GBP