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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 €591 EUR
As of November 6, 2026
Save €1,439 EUR (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,030 EUR 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 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 November 5, 2026, with prices from €591 to €2,030, a €1,439 spread on the same certified stone. NZ Jewellers lists it at €2,030. 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
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 →
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: €2,030 EUR|Low: €498 EUR|High: €2,108 EUR|Avg: €1,012 EUR|-3.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2€591 EUR
Retailer 5€648 EUR
Retailer 7€673 EUR
Retailer 6€698 EUR
Retailer 4€740 EUR
Retailer 9€782 EUR
Retailer 3€906 EUR
Retailer 8€1,229 EUR
NZ Jewellers€2,030 EUR

44 data points across 9 retailers

11 retailers€591 EUR to €2,030 EUR

A
Cheapest Retailer
-
€591 EUR
Final sale: no returns
B+
Retailer 2
-
€648 EUR
View
B+
Retailer 3
-
€673 EUR
View
B+
Retailer 4
-
€683 EUR
View
B+
Retailer 5
-
€698 EUR
View
B+
Retailer 6
-
€740 EUR
View
B
Retailer 7
-
€782 EUR
View
B
Retailer 8
-
€830 EUR
View
B
Retailer 9
-
€906 EUR
View
B
Retailer 10
-
€1,229 EUR
View
Most Expensive
C
NZ Jewellers
b0d7bd41-02c5-4079-803d-9b2a8383066d · Nov 5
€2,030 EUR
$2,267 USD
View
10 more retailers have this diamond
Prices start from €591 EURSave up to €1,439 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.

A
0.51ct Oval
€591 EUR