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Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 1568300963

Certificate GIA 1568300963

Diamond specifications and retailer prices

From £393 GBP
As of November 4, 2026
Save £320 GBP (45%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £713 GBP at Frank Darling · As of November 4, 2026
View at Frank Darling

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1568300963. Listed at 8 retailers as of November 4, 2026, with prices from £393 to £713, a £320 spread on the same certified stone. Frank Darling lists it at £713. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.43°
Pavilion angle40.37°
OriginNatural
Grading LabGIA
CertificateGIA 1568300963
Dimensions6.27 × 4.51 × 2.76 mm
L/W Ratio1.39
Culet sizeNone
Top View
6.27 mm4.51 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1568300963
Side View
Table 61.0%Crown 39.43°Girdle: MED-VTKPavilion 40.37°Culet: NoneDepth 61.2%

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 4
Current: £713 GBP|Low: £393 GBP|High: £745 GBP|Avg: £522 GBP|-4.3%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 6£393 GBP
Retailer 8£396 GBP
Retailer 2£407 GBP
Retailer 3£476 GBP
Retailer 5£511 GBP
Retailer 4£558 GBP
Retailer 7£592 GBP
Frank Darling£713 GBP

42 data points across 8 retailers

8 retailers£393 GBP to £713 GBP

A
Cheapest Retailer
-
£393 GBP
A
Retailer 2
-
£396 GBP
View
A
Retailer 3
-
£407 GBP
View
A
Retailer 4
-
£476 GBP
View
A
Retailer 5
-
£511 GBP
View
B+
Retailer 6
-
£558 GBP
View
B+
Retailer 7
-
£592 GBP
View
Most Expensive
B+
Frank Darling
2686814HK · Nov 4
£713 GBP
$954 USD
View
7 more retailers have this diamond
Prices start from £393 GBPSave up to £320 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
£393 GBP