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Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

VG • D/SI2 • GIA 1565327850

Certificate GIA 1565327850

Diamond specifications and retailer prices

From £508 GBP
As of November 6, 2026
Save £320 GBP (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £828 GBP at Frank Darling · As of November 6, 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1565327850. Listed at 11 retailers as of November 6, 2026, with prices from £508 to £828, a £320 spread on the same certified stone. Frank Darling lists it at £828. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.99°
Pavilion angle40.29°
OriginNatural
Grading LabGIA
CertificateGIA 1565327850
Dimensions6.08 × 4.43 × 2.86 mm
L/W Ratio1.37
Culet sizeNone
Top View
6.08 mm4.43 mm0.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1565327850
Side View
Table 59.0%Crown 39.99°Girdle: MED-THKPavilion 40.29°Culet: NoneDepth 64.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £828 GBP|Low: £508 GBP|High: £838 GBP|Avg: £638 GBP|-1.2%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7£508 GBP
Retailer 5£514 GBP
Retailer 11£514 GBP
Retailer 3£523 GBP
Retailer 9£544 GBP
Retailer 6£598 GBP
Retailer 8£668 GBP
Retailer 4£712 GBP
Retailer 2£753 GBP
Retailer 10£770 GBP
Frank Darling£828 GBP

37 data points across 11 retailers

11 retailers£508 GBP to £828 GBP

A
Cheapest Retailer
-
£508 GBP
A
Retailer 2
-
£514 GBP
View
A
Retailer 3
-
£514 GBP
View
A
Retailer 4
-
£523 GBP
View
A
Retailer 5
-
£544 GBP
View
B+
Retailer 6
-
£598 GBP
View
B+
Retailer 7
-
£668 GBP
View
B
Retailer 8
-
£712 GBP
View
B
Retailer 9
-
£753 GBP
View
B+
Retailer 10
-
£770 GBP
View
Most Expensive
B
Frank Darling
2692684HK · Nov 6
£828 GBP
$1,109 USD
View
10 more retailers have this diamond
Prices start from £508 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
£508 GBP