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Oval|Natural|GIA

0.51ct H SI2 Oval Natural Diamond

FR • H/SI2 • GIA 1565302455

Certificate GIA 1565302455

Diamond specifications and retailer prices

From £287 GBP
As of November 6, 2026
Save £933 GBP (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,220 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1565302455. Listed at 16 retailers as of November 5, 2026, with prices from £287 to £1,220, a £933 spread on the same certified stone. NZ Jewellers lists it at £1,220. 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
H
Colour
SI2
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565302455
Dimensions6.80 × 4.13 × 2.71 mm
L/W Ratio1.65
Girdle conditionFaceted
Culet sizeNone
Top View
6.80 mm4.13 mm0.51 ctH / SI2
OriginNatural
CutFair
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565302455
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 65.6%

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: £287 GBP|Low: £287 GBP|High: £908 GBP|Avg: £466 GBP|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£287 GBP
Retailer 8£356 GBP
Retailer 9£359 GBP
Retailer 5£391 GBP
Retailer 2£408 GBP
Retailer 4£487 GBP
Retailer 7£527 GBP
Retailer 3£578 GBP
Retailer 6£897 GBP

36 data points across 9 retailers

16 retailers£287 GBP to £1,220 GBP

A
Cheapest Retailer
-
£287 GBP
B+
Retailer 2
-
£335 GBP
View
B+
Retailer 3
-
£356 GBP
View
B+
Retailer 4
-
£359 GBP
View
Final sale: no returns
B+
Retailer 5
-
£362 GBP
View
B+
Retailer 6
-
£389 GBP
View
B+
Retailer 7
-
£391 GBP
View
B+
Retailer 8
-
£408 GBP
View
B+
Retailer 9
-
£419 GBP
View
B+
Retailer 10
-
£449 GBP
View
B
Retailer 11
-
£487 GBP
View
B
Retailer 12
-
£527 GBP
View
B
Retailer 13
-
£539 GBP
View
B
Retailer 14
-
£578 GBP
View
C
Retailer 15
-
£897 GBP
View
Most Expensive
C
NZ Jewellers
b32b6210-9d70-40a7-9cd2-9447712d8bb9 · Nov 5
£1,220 GBP
$1,633 USD
View
15 more retailers have this diamond
Prices start from £287 GBPSave up to £933 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
£287 GBP