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Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

GD • G/SI2 • GIA 6512404467

Certificate GIA 6512404467

Diamond specifications and retailer prices

From £359 GBP
As of November 6, 2026
Save £1,171 GBP (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,531 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 G 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 6512404467. Listed at 12 retailers as of November 5, 2026, with prices from £359 to £1,531, a £1,171 spread on the same certified stone. NZ Jewellers lists it at £1,531. 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
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6512404467
Dimensions6.51 × 4.46 × 2.73 mm
L/W Ratio1.46
Top View
6.51 mm4.46 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6512404467
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.3%

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: £359 GBP|Low: £309 GBP|High: £1,141 GBP|Avg: £601 GBP|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1£359 GBP
Retailer 6£450 GBP
Retailer 5£493 GBP
Retailer 7£507 GBP
Retailer 3£592 GBP
Retailer 2£713 GBP
Retailer 4£1,126 GBP

43 data points across 7 retailers

12 retailers£359 GBP to £1,531 GBP

A
Cheapest Retailer
-
£359 GBP
B+
Retailer 2
-
£450 GBP
View
Final sale: no returns
B+
Retailer 3
-
£488 GBP
View
Retailer 4
-
£488 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
£493 GBP
View
Price last confirmed 19 days ago
B+
Retailer 6
-
£507 GBP
View
B+
Retailer 7
-
£563 GBP
View
B
Retailer 8
-
£592 GBP
View
B
Retailer 9
-
£699 GBP
View
B
Retailer 10
-
£713 GBP
View
B
Retailer 11
-
£1,126 GBP
View
Most Expensive
C
NZ Jewellers
857257e9-08bf-45cf-9088-0767e1004a08 · Nov 5
£1,531 GBP
$2,049 USD
View
11 more retailers have this diamond
Prices start from £359 GBPSave up to £1,171 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
£359 GBP