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Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

GD • D/SI2 • GIA 2507889766

Certificate GIA 2507889766

Diamond specifications and retailer prices

From €619 EUR
$692 USD
As of October 31, 2026
Save €1,488 EUR (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,107 EUR at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507889766. Listed at 11 retailers as of October 30, 2026, with prices from €619 to €2,107, a €1,488 spread on the same certified stone. NZ Jewellers lists it at €2,107. 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
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2507889766
Dimensions6.36 × 4.52 × 2.75 mm
L/W Ratio1.41
Top View
6.36 mm4.52 mm0.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2507889766
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €2,107 EUR|Low: €498 EUR|High: €2,107 EUR|Avg: €919 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5€619 EUR
Retailer 9€672 EUR
Retailer 10€672 EUR
Retailer 6€697 EUR
Retailer 2€732 EUR
Retailer 8€775 EUR
Retailer 7€781 EUR
Retailer 4€953 EUR
Retailer 3€1,230 EUR
NZ Jewellers€2,107 EUR

43 data points across 10 retailers

11 retailers€619 EUR to €2,107 EUR

B+
Cheapest Retailer
-
€619 EUR
$692 USD
Final sale: no returns
B+
Retailer 2
-
€672 EUR
$751 USD
View
B+
Retailer 3
-
€683 EUR
$763 USD
View
B+
Retailer 4
-
€697 EUR
$779 USD
View
B+
Retailer 5
-
€732 EUR
£644 GBP
View
B+
Retailer 6
-
€775 EUR
$866 USD
View
B+
Retailer 7
-
€781 EUR
$873 USD
View
B
Retailer 8
-
€830 EUR
$927 USD
View
B
Retailer 9
-
€953 EUR
View
B
Retailer 10
-
€1,230 EUR
£1,082 GBP
View
Most Expensive
C
NZ Jewellers
b0d7bd41-02c5-4079-803d-9b2a8383066d · Oct 30
€2,107 EUR
$2,354 USD
View
10 more retailers have this diamond
Prices start from €619 EURSave up to €1,488 EUR

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.

B+
0.51ct Oval
€619 EUR