Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

VG • F/SI1 • GIA 3515964985

Certificate GIA 3515964985

Diamond specifications and retailer prices

From £395 GBP
As of November 6, 2026
Save £622 GBP (61%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,017 GBP at Adiamor · As of November 5, 2026
View at Adiamor

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 3515964985. Listed at 14 retailers as of November 5, 2026, with prices from £395 to £1,017, a £622 spread on the same certified stone. Adiamor lists it at £1,017. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3515964985
Dimensions6.24 × 4.42 × 2.83 mm
L/W Ratio1.41
Top View
6.24 mm4.42 mm0.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3515964985
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £416 GBP|Low: £395 GBP|High: £784 GBP|Avg: £597 GBP|-2.6%
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 10£395 GBP
Retailer 1£416 GBP
Retailer 9£430 GBP
Retailer 2£522 GBP
Retailer 11£583 GBP
Retailer 7£594 GBP
Retailer 5£596 GBP
Retailer 8£675 GBP
Retailer 4£714 GBP
Retailer 3£731 GBP
Retailer 6£773 GBP

33 data points across 11 retailers

14 retailers£395 GBP to £1,017 GBP

A
Cheapest Retailer
-
£395 GBP
Final sale: no returns
A
Retailer 2
-
£416 GBP
View
A
Retailer 3
-
£430 GBP
View
B+
Retailer 4
-
£522 GBP
View
Retailer 5
-
£583 GBP
View
Price last confirmed 10 days ago
B+
Retailer 6
-
£594 GBP
View
B+
Retailer 7
-
£596 GBP
View
B
Retailer 8
-
£675 GBP
View
B
Retailer 9
-
£713 GBP
View
B+
Retailer 10
-
£714 GBP
View
B
Retailer 11
-
£771 GBP
View
B
Retailer 12
-
£773 GBP
View
Retailer 13
-
£882 GBP
View
Price last confirmed 34 days ago
Most Expensive
B
Adiamor
D-67828429 · Nov 5
£1,017 GBP
$1,361 USD
View
13 more retailers have this diamond
Prices start from £395 GBPSave up to £622 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
0.51ct Oval
£395 GBP