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Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

VG • G/SI2 • GIA 6561430129

Certificate GIA 6561430129

Diamond specifications and retailer prices

From £303 GBP
As of November 6, 2026
Save £985 GBP (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,289 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6561430129. Listed at 16 retailers as of November 5, 2026, with prices from £303 to £1,289, a £985 spread on the same certified stone. NZ Jewellers lists it at £1,289. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561430129
Dimensions6.65 × 4.34 × 2.74 mm
L/W Ratio1.53
Girdle conditionFaceted
Culet sizeNone
Top View
6.65 mm4.34 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561430129
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NDepth 63.1%

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: £303 GBP|Low: £303 GBP|High: £960 GBP|Avg: £516 GBP|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1£303 GBP
Retailer 8£380 GBP
Retailer 7£385 GBP
Retailer 3£411 GBP
Retailer 2£518 GBP
Retailer 6£606 GBP
Retailer 5£610 GBP
Retailer 4£947 GBP

37 data points across 8 retailers

16 retailers£303 GBP to £1,289 GBP

A
Cheapest Retailer
-
£303 GBP
A
Retailer 2
-
£353 GBP
View
A
Retailer 3
-
£380 GBP
View
Final sale: no returns
Retailer 4
-
£385 GBP
View
Price last confirmed 19 days ago
A
Retailer 5
-
£411 GBP
View
A
Retailer 6
-
£411 GBP
View
A
Retailer 7
-
£429 GBP
View
B+
Retailer 8
-
£442 GBP
View
B+
Retailer 9
-
£474 GBP
View
B+
Retailer 10
-
£518 GBP
View
B+
Retailer 11
-
£572 GBP
View
B+
Retailer 12
-
£606 GBP
View
B+
Retailer 13
-
£610 GBP
View
B
Retailer 14
-
£947 GBP
View
C
Retailer 15
-
£1,179 GBP
View
Most Expensive
C
NZ Jewellers
9173a662-b0b0-4181-a0fc-b519c795894d · Nov 5
£1,289 GBP
$1,725 USD
View
15 more retailers have this diamond
Prices start from £303 GBPSave up to £985 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
£303 GBP